SYMBOLCOMMON_NAMEaka. SYNONYMS
win.turnedup (Back to overview)

TURNEDUP

aka: Notestuk

Actor(s): APT33


There is no description at this point.

References
2019-03-27SymantecCritical Attack Discovery and Intelligence Team
@online{team:20190327:elfin:d90a330, author = {Critical Attack Discovery and Intelligence Team}, title = {{Elfin: Relentless Espionage Group Targets Multiple Organizations in Saudi Arabia and U.S.}}, date = {2019-03-27}, organization = {Symantec}, url = {https://symantec-blogs.broadcom.com/blogs/threat-intelligence/elfin-apt33-espionage}, language = {English}, urldate = {2020-04-21} } Elfin: Relentless Espionage Group Targets Multiple Organizations in Saudi Arabia and U.S.
DarkComet MimiKatz Nanocore RAT NetWire RC pupy Quasar RAT Remcos StoneDrill TURNEDUP APT33
2019-03-27SymantecSecurity Response Attack Investigation Team
@online{team:20190327:elfin:836cc39, author = {Security Response Attack Investigation Team}, title = {{Elfin: Relentless Espionage Group Targets Multiple Organizations in Saudi Arabia and U.S.}}, date = {2019-03-27}, organization = {Symantec}, url = {https://www.symantec.com/blogs/threat-intelligence/elfin-apt33-espionage}, language = {English}, urldate = {2020-01-06} } Elfin: Relentless Espionage Group Targets Multiple Organizations in Saudi Arabia and U.S.
DarkComet Nanocore RAT pupy Quasar RAT Remcos TURNEDUP APT33
2018-04-11CyberbitHod Gavriel, Boris Erbesfeld
@online{gavriel:20180411:new:9ed9a94, author = {Hod Gavriel and Boris Erbesfeld}, title = {{New ‘Early Bird’ Code Injection Technique Discovered}}, date = {2018-04-11}, organization = {Cyberbit}, url = {https://www.cyberbit.com/new-early-bird-code-injection-technique-discovered/}, language = {English}, urldate = {2020-08-21} } New ‘Early Bird’ Code Injection Technique Discovered
TURNEDUP
2017-09-20FireEyeJacqueline O’Leary, Josiah Kimble, Kelli Vanderlee, Nalani Fraser
@online{oleary:20170920:insights:27e8253, author = {Jacqueline O’Leary and Josiah Kimble and Kelli Vanderlee and Nalani Fraser}, title = {{Insights into Iranian Cyber Espionage: APT33 Targets Aerospace and Energy Sectors and has Ties to Destructive Malware}}, date = {2017-09-20}, organization = {FireEye}, url = {https://www.fireeye.com/blog/threat-research/2017/09/apt33-insights-into-iranian-cyber-espionage.html}, language = {English}, urldate = {2019-12-20} } Insights into Iranian Cyber Espionage: APT33 Targets Aerospace and Energy Sectors and has Ties to Destructive Malware
DROPSHOT Nanocore RAT NetWire RC SHAPESHIFT TURNEDUP APT33
Yara Rules
[TLP:WHITE] win_turnedup_auto (20220808 | Detects win.turnedup.)
rule win_turnedup_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-08-05"
        version = "1"
        description = "Detects win.turnedup."
        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.turnedup"
        malpedia_rule_date = "20220805"
        malpedia_hash = "6ec06c64bcfdbeda64eff021c766b4ce34542b71"
        malpedia_version = "20220808"
        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 = { 8d450c 50 8d4dc0 33f6 }
            // n = 4, score = 400
            //   8d450c               | lea                 eax, [ebp + 0xc]
            //   50                   | push                eax
            //   8d4dc0               | lea                 ecx, [ebp - 0x40]
            //   33f6                 | xor                 esi, esi

        $sequence_1 = { 7303 8d4d28 57 56 }
            // n = 4, score = 400
            //   7303                 | jae                 5
            //   8d4d28               | lea                 ecx, [ebp + 0x28]
            //   57                   | push                edi
            //   56                   | push                esi

        $sequence_2 = { e8???????? 84c0 0f85a0000000 807b0400 7538 8b0b 85c9 }
            // n = 7, score = 400
            //   e8????????           |                     
            //   84c0                 | test                al, al
            //   0f85a0000000         | jne                 0xa6
            //   807b0400             | cmp                 byte ptr [ebx + 4], 0
            //   7538                 | jne                 0x3a
            //   8b0b                 | mov                 ecx, dword ptr [ebx]
            //   85c9                 | test                ecx, ecx

        $sequence_3 = { 7324 8b4518 40 50 8d4d08 51 }
            // n = 6, score = 400
            //   7324                 | jae                 0x26
            //   8b4518               | mov                 eax, dword ptr [ebp + 0x18]
            //   40                   | inc                 eax
            //   50                   | push                eax
            //   8d4d08               | lea                 ecx, [ebp + 8]
            //   51                   | push                ecx

        $sequence_4 = { e8???????? 83c420 8bf0 81fe???????? }
            // n = 4, score = 400
            //   e8????????           |                     
            //   83c420               | add                 esp, 0x20
            //   8bf0                 | mov                 esi, eax
            //   81fe????????         |                     

        $sequence_5 = { 807b0539 0f8fac000000 837db008 7d4d 807b0400 7538 }
            // n = 6, score = 400
            //   807b0539             | cmp                 byte ptr [ebx + 5], 0x39
            //   0f8fac000000         | jg                  0xb2
            //   837db008             | cmp                 dword ptr [ebp - 0x50], 8
            //   7d4d                 | jge                 0x4f
            //   807b0400             | cmp                 byte ptr [ebx + 4], 0
            //   7538                 | jne                 0x3a

        $sequence_6 = { 8b06 eb02 8bc6 c6043800 8b7d08 8bc7 8d5001 }
            // n = 7, score = 400
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   eb02                 | jmp                 4
            //   8bc6                 | mov                 eax, esi
            //   c6043800             | mov                 byte ptr [eax + edi], 0
            //   8b7d08               | mov                 edi, dword ptr [ebp + 8]
            //   8bc7                 | mov                 eax, edi
            //   8d5001               | lea                 edx, [eax + 1]

        $sequence_7 = { 7907 68???????? eb71 a802 }
            // n = 4, score = 400
            //   7907                 | jns                 9
            //   68????????           |                     
            //   eb71                 | jmp                 0x73
            //   a802                 | test                al, 2

        $sequence_8 = { 83ec1c 8bcc 6a0b c741140f000000 c7411000000000 68???????? }
            // n = 6, score = 400
            //   83ec1c               | sub                 esp, 0x1c
            //   8bcc                 | mov                 ecx, esp
            //   6a0b                 | push                0xb
            //   c741140f000000       | mov                 dword ptr [ecx + 0x14], 0xf
            //   c7411000000000       | mov                 dword ptr [ecx + 0x10], 0
            //   68????????           |                     

        $sequence_9 = { 55 8bec 56 3ac1 7f12 0fbed0 0fbec1 }
            // n = 7, score = 400
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   56                   | push                esi
            //   3ac1                 | cmp                 al, cl
            //   7f12                 | jg                  0x14
            //   0fbed0               | movsx               edx, al
            //   0fbec1               | movsx               eax, cl

    condition:
        7 of them and filesize < 892928
}
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