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 (20200817 | autogenerated rule brought to you by yara-signator)
rule win_turnedup_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-08-17"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.4.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.turnedup"
        malpedia_rule_date = "20200817"
        malpedia_hash = "8c895fd01eccb47a6225bcb1a3ba53cbb98644c5"
        malpedia_version = "20200817"
        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 / approach 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 = { 84c9 75f9 2bc2 50 8d8d34ffffff }
            // n = 5, score = 400
            //   84c9                 | test                cl, cl
            //   75f9                 | jne                 0xfffffffb
            //   2bc2                 | sub                 eax, edx
            //   50                   | push                eax
            //   8d8d34ffffff         | lea                 ecx, [ebp - 0xcc]

        $sequence_1 = { e8???????? 83c404 6a00 8d4dac 8945a4 e8???????? }
            // n = 6, score = 400
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   6a00                 | push                0
            //   8d4dac               | lea                 ecx, [ebp - 0x54]
            //   8945a4               | mov                 dword ptr [ebp - 0x5c], eax
            //   e8????????           |                     

        $sequence_2 = { 8bc8 57 8d7901 8d642400 8a11 41 84d2 }
            // n = 7, score = 400
            //   8bc8                 | mov                 ecx, eax
            //   57                   | push                edi
            //   8d7901               | lea                 edi, [ecx + 1]
            //   8d642400             | lea                 esp, [esp]
            //   8a11                 | mov                 dl, byte ptr [ecx]
            //   41                   | inc                 ecx
            //   84d2                 | test                dl, dl

        $sequence_3 = { 83ee1c 833e10 720c 8b46ec 50 e8???????? }
            // n = 6, score = 400
            //   83ee1c               | sub                 esi, 0x1c
            //   833e10               | cmp                 dword ptr [esi], 0x10
            //   720c                 | jb                  0xe
            //   8b46ec               | mov                 eax, dword ptr [esi - 0x14]
            //   50                   | push                eax
            //   e8????????           |                     

        $sequence_4 = { 33c9 85f6 7415 8a15???????? 53 8bff }
            // n = 6, score = 400
            //   33c9                 | xor                 ecx, ecx
            //   85f6                 | test                esi, esi
            //   7415                 | je                  0x17
            //   8a15????????         |                     
            //   53                   | push                ebx
            //   8bff                 | mov                 edi, edi

        $sequence_5 = { a1???????? 56 85c0 7418 8b35???????? 85f6 }
            // n = 6, score = 400
            //   a1????????           |                     
            //   56                   | push                esi
            //   85c0                 | test                eax, eax
            //   7418                 | je                  0x1a
            //   8b35????????         |                     
            //   85f6                 | test                esi, esi

        $sequence_6 = { f7d6 8d4c2428 23f7 e8???????? 3bf3 740a }
            // n = 6, score = 400
            //   f7d6                 | not                 esi
            //   8d4c2428             | lea                 ecx, [esp + 0x28]
            //   23f7                 | and                 esi, edi
            //   e8????????           |                     
            //   3bf3                 | cmp                 esi, ebx
            //   740a                 | je                  0xc

        $sequence_7 = { 55 8bec 8b4518 53 40 56 }
            // n = 6, score = 400
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   8b4518               | mov                 eax, dword ptr [ebp + 0x18]
            //   53                   | push                ebx
            //   40                   | inc                 eax
            //   56                   | push                esi

        $sequence_8 = { 46 56 8d8424e0000000 50 }
            // n = 4, score = 400
            //   46                   | inc                 esi
            //   56                   | push                esi
            //   8d8424e0000000       | lea                 eax, [esp + 0xe0]
            //   50                   | push                eax

        $sequence_9 = { 8d8800000080 83f9ff 7707 8b4d0c 8901 eb0b }
            // n = 6, score = 400
            //   8d8800000080         | lea                 ecx, [eax - 0x80000000]
            //   83f9ff               | cmp                 ecx, -1
            //   7707                 | ja                  9
            //   8b4d0c               | mov                 ecx, dword ptr [ebp + 0xc]
            //   8901                 | mov                 dword ptr [ecx], eax
            //   eb0b                 | jmp                 0xd

    condition:
        7 of them and filesize < 892928
}
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