SYMBOLCOMMON_NAMEaka. SYNONYMS
win.hyperbro (Back to overview)

HyperBro

Actor(s): EMISSARY PANDA

VTCollection    

HyperBro is a RAT that has been observed to target primarily within the gambling industries, though it has been spotted in other places as well. The malware typically consists of 3 or more components: a) a genuine loader typically with a signed certification b) a malicious DLL loader loaded from the former component via DLL hijacking c) an encrypted and compressed blob that decrypts to a PE-based payload which has its C2 information hardcoded within.

References
2023-07-18 ⋅ Mandiant ⋅ Mandiant Intelligence
Stealth Mode: Chinese Cyber Espionage Actors Continue to Evolve Tactics to Avoid Detection
BPFDoor SALTWATER SEASPY SideWalk ZuoRAT Daxin HyperBro HyperSSL Waterbear
2022-10-18 ⋅ Intrinsec ⋅ CERT Intrinsec, Intrinsec
APT27 – One Year To Exfiltrate Them All: Intrusion In-Depth Analysis
HyperBro MimiKatz
2022-08-12 ⋅ Trend Micro ⋅ Daniel Lunghi, Jaromír Hořejší
Iron Tiger Compromises Chat Application Mimi, Targets Windows, Mac, and Linux Users
Rshell HyperBro Earth Berberoka
2022-08-12 ⋅ Trend Micro ⋅ Daniel Lunghi, Jaromír Hořejší
Iron Tiger Compromises Chat Application Mimi, Targets Windows, Mac, and Linux Users (IOCs)
HyperBro
2022-08-12 ⋅ Sekoia ⋅ Threat & Detection Research Team
LuckyMouse uses a backdoored Electron app to target MacOS
HyperBro
2022-02-07 ⋅ Cyware ⋅ Cyware
APT27 Group Targets German Organizations with HyperBro
HyperBro
2022-01-26 ⋅ BleepingComputer ⋅ Sergiu Gatlan
German govt warns of APT27 hackers backdooring business networks
HyperBro
2022-01-26 ⋅ Bundesamt für Verfassungsschutz ⋅ Bundesamt für Verfassungsschutz
Current cyber attack campaign against German business enterprises by APT27
HyperBro
2021-08-10 ⋅ FireEye ⋅ Israel Research Team, U.S. Threat Intel Team
UNC215: Spotlight on a Chinese Espionage Campaign in Israel
HyperBro HyperSSL MimiKatz
2021-04-29 ⋅ ESET Research ⋅ Andy Garth, Daniel Chromek, Matthieu Faou, Robert Lipovsky, Tony Anscombe
ESET Industry Report on Government: Targeted but not alone
Exaramel Crutch Exaramel HyperBro HyperSSL InvisiMole XDSpy
2021-04-09 ⋅ Trend Micro ⋅ Daniel Lunghi, Kenney Lu
Iron Tiger APT Updates Toolkit With Evolved SysUpdate Malware
HyperBro HyperSSL APT27
2020-12-10 ⋅ ESET Research ⋅ Mathieu Tartare
Operation StealthyTrident: corporate software under attack
HyperBro PlugX Tmanger TA428
2020-12-10 ⋅ ESET Research ⋅ Mathieu Tartare
Operation StealthyTrident: corporate software under attack
HyperBro PlugX ShadowPad Tmanger
2020-12-09 ⋅ Avast Decoded ⋅ Igor Morgenstern, Luigino Camastra
APT Group Targeting Governmental Agencies in East Asia
LaZagne Albaniiutas HyperBro MimiKatz PolPo Tmanger TaskMasters
2020-12-09 ⋅ Avast Decoded ⋅ Igor Morgenstern, Luigino Camastra
APT Group Targeting Governmental Agencies in East Asia
Albaniiutas HyperBro PlugX Tmanger TA428
2020-12-09 ⋅ Avast Decoded ⋅ Igor Morgenstern, Luigino Camastra
APT Group Targeting Governmental Agencies in East Asia
Albaniiutas HyperBro PlugX PolPo Tmanger
2020-11-27 ⋅ PTSecurity ⋅ Alexey Vishnyakov, Denis Goydenko
Investigation with a twist: an accidental APT attack and averted data destruction
TwoFace CHINACHOPPER HyperBro MegaCortex MimiKatz
2020-10-30 ⋅ YouTube (Kaspersky Tech) ⋅ Kris McConkey
Around the world in 80 days 4.2bn packets
Cobalt Strike Derusbi HyperBro Poison Ivy ShadowPad Winnti
2020-09-30 ⋅ Team Cymru ⋅ Jacomo Piccolini, James Shank
Pandamic: Emissary Pandas in the Middle East
HyperBro HyperSSL
2020-06-03 ⋅ Trend Micro ⋅ Daniel Lunghi
How to perform long term monitoring of careless threat actors
BBSRAT HyperBro Trochilus RAT
2020-03-25 ⋅ Team Cymru ⋅ Team Cymru
How the Iranian Cyber Security Agency Detects Emissary Panda Malware
HyperBro
2020-02-18 ⋅ Trend Micro ⋅ Cedric Pernet, Daniel Lunghi, Jamz Yaneza, Kenney Lu
Uncovering DRBControl: Inside the Cyberespionage Campaign Targeting Gambling Operations
Cobalt Strike HyperBro PlugX Trochilus RAT Operation DRBControl
2020-02-17 ⋅ Talent-Jump Technologies ⋅ Theo Chen, Zero Chen
CLAMBLING - A New Backdoor Base On Dropbox
HyperBro PlugX
2020-01-01 ⋅ FireEye ⋅ Mandiant, Mitchell Clarke, Tom Hall
Mandiant IR Grab Bag of Attacker Activity
TwoFace CHINACHOPPER HyperBro HyperSSL
2020-01-01 ⋅ Secureworks ⋅ SecureWorks
BRONZE UNION
9002 RAT CHINACHOPPER Enfal Ghost RAT HttpBrowser HyperBro owaauth PlugX Poison Ivy ZXShell APT27
2019-06-13 ⋅ ae CERT ⋅ ae CERT
Advanced Notification of Cyber Threats against Family of Malware Giving Remote Access to Computers
HyperBro HyperSSL
2019-02-27 ⋅ Secureworks ⋅ CTU Research Team
A Peek into BRONZE UNION’s Toolbox
Ghost RAT HyperBro ZXShell
2018-06-13 ⋅ Kaspersky Labs ⋅ Denis Legezo
LuckyMouse hits national data center to organize country-level waterholing campaign
HyperBro APT27
Yara Rules
[TLP:WHITE] win_hyperbro_auto (20251219 | Detects win.hyperbro.)
rule win_hyperbro_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-01-05"
        version = "1"
        description = "Detects win.hyperbro."
        info = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.6.0"
        signator_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.hyperbro"
        malpedia_rule_date = "20260105"
        malpedia_hash = "19b79e7cab4eaf532122e5b45a77dd8f6bb5cc79"
        malpedia_version = "20251219"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    /* DISCLAIMER
     * The strings used in this rule have been automatically selected from the
     * disassembly of memory dumps and unpacked files, using YARA-Signator.
     * The code and documentation is published here:
     * https://github.com/fxb-cocacoding/yara-signator
     * As Malpedia is used as data source, please note that for a given
     * number of families, only single samples are documented.
     * This likely impacts the degree of generalization these rules will offer.
     * Take the described generation method also into consideration when you
     * apply the rules in your use cases and assign them confidence levels.
     */


    strings:
        $sequence_0 = { 51 e8???????? 8b5620 52 e8???????? 8b4614 50 }
            // n = 7, score = 400
            //   51                   | push                ecx
            //   e8????????           |                     
            //   8b5620               | mov                 edx, dword ptr [esi + 0x20]
            //   52                   | push                edx
            //   e8????????           |                     
            //   8b4614               | mov                 eax, dword ptr [esi + 0x14]
            //   50                   | push                eax

        $sequence_1 = { 83fe40 7e33 8b0f 51 e8???????? }
            // n = 5, score = 400
            //   83fe40               | cmp                 esi, 0x40
            //   7e33                 | jle                 0x35
            //   8b0f                 | mov                 ecx, dword ptr [edi]
            //   51                   | push                ecx
            //   e8????????           |                     

        $sequence_2 = { 8a4b05 884f01 8b4308 83c410 50 8bc6 c7460840000000 }
            // n = 7, score = 400
            //   8a4b05               | mov                 cl, byte ptr [ebx + 5]
            //   884f01               | mov                 byte ptr [edi + 1], cl
            //   8b4308               | mov                 eax, dword ptr [ebx + 8]
            //   83c410               | add                 esp, 0x10
            //   50                   | push                eax
            //   8bc6                 | mov                 eax, esi
            //   c7460840000000       | mov                 dword ptr [esi + 8], 0x40

        $sequence_3 = { c70600000000 c7460400000000 8d5e0c e8???????? 83c404 }
            // n = 5, score = 400
            //   c70600000000         | mov                 dword ptr [esi], 0
            //   c7460400000000       | mov                 dword ptr [esi + 4], 0
            //   8d5e0c               | lea                 ebx, [esi + 0xc]
            //   e8????????           |                     
            //   83c404               | add                 esp, 4

        $sequence_4 = { 0f8617feffff 8a17 8816 46 }
            // n = 4, score = 400
            //   0f8617feffff         | jbe                 0xfffffe1d
            //   8a17                 | mov                 dl, byte ptr [edi]
            //   8816                 | mov                 byte ptr [esi], dl
            //   46                   | inc                 esi

        $sequence_5 = { 33ff 3bc7 7412 50 e8???????? 83c404 897e20 }
            // n = 7, score = 400
            //   33ff                 | xor                 edi, edi
            //   3bc7                 | cmp                 eax, edi
            //   7412                 | je                  0x14
            //   50                   | push                eax
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   897e20               | mov                 dword ptr [esi + 0x20], edi

        $sequence_6 = { 8b4614 8b1d???????? 83c404 3bc7 7406 50 ffd3 }
            // n = 7, score = 400
            //   8b4614               | mov                 eax, dword ptr [esi + 0x14]
            //   8b1d????????         |                     
            //   83c404               | add                 esp, 4
            //   3bc7                 | cmp                 eax, edi
            //   7406                 | je                  8
            //   50                   | push                eax
            //   ffd3                 | call                ebx

        $sequence_7 = { 41 e9???????? 8b442410 8b6c2418 e9???????? 2b4c2428 8b44242c }
            // n = 7, score = 400
            //   41                   | inc                 ecx
            //   e9????????           |                     
            //   8b442410             | mov                 eax, dword ptr [esp + 0x10]
            //   8b6c2418             | mov                 ebp, dword ptr [esp + 0x18]
            //   e9????????           |                     
            //   2b4c2428             | sub                 ecx, dword ptr [esp + 0x28]
            //   8b44242c             | mov                 eax, dword ptr [esp + 0x2c]

        $sequence_8 = { 83c410 85ed 750e 8b7c2410 }
            // n = 4, score = 400
            //   83c410               | add                 esp, 0x10
            //   85ed                 | test                ebp, ebp
            //   750e                 | jne                 0x10
            //   8b7c2410             | mov                 edi, dword ptr [esp + 0x10]

        $sequence_9 = { 895c2430 895c2434 3bfb 7409 57 e8???????? 83c404 }
            // n = 7, score = 400
            //   895c2430             | mov                 dword ptr [esp + 0x30], ebx
            //   895c2434             | mov                 dword ptr [esp + 0x34], ebx
            //   3bfb                 | cmp                 edi, ebx
            //   7409                 | je                  0xb
            //   57                   | push                edi
            //   e8????????           |                     
            //   83c404               | add                 esp, 4

    condition:
        7 of them and filesize < 352256
}
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