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 (20201014 | autogenerated rule brought to you by yara-signator)
rule win_turnedup_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-10-14"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.5.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.turnedup"
        malpedia_rule_date = "20201014"
        malpedia_hash = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
        malpedia_version = "20201014"
        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 = { 56 8bf0 8b4210 3bc6 7302 8bf0 8bc6 }
            // n = 7, score = 400
            //   56                   | push                esi
            //   8bf0                 | mov                 esi, eax
            //   8b4210               | mov                 eax, dword ptr [edx + 0x10]
            //   3bc6                 | cmp                 eax, esi
            //   7302                 | jae                 4
            //   8bf0                 | mov                 esi, eax
            //   8bc6                 | mov                 eax, esi

        $sequence_1 = { 51 ff15???????? 8b45f0 8b4dfc 33cd 5b }
            // n = 6, score = 400
            //   51                   | push                ecx
            //   ff15????????         |                     
            //   8b45f0               | mov                 eax, dword ptr [ebp - 0x10]
            //   8b4dfc               | mov                 ecx, dword ptr [ebp - 4]
            //   33cd                 | xor                 ecx, ebp
            //   5b                   | pop                 ebx

        $sequence_2 = { 8919 8b542478 891a 8b44245c 8918 8b4c246c }
            // n = 6, score = 400
            //   8919                 | mov                 dword ptr [ecx], ebx
            //   8b542478             | mov                 edx, dword ptr [esp + 0x78]
            //   891a                 | mov                 dword ptr [edx], ebx
            //   8b44245c             | mov                 eax, dword ptr [esp + 0x5c]
            //   8918                 | mov                 dword ptr [eax], ebx
            //   8b4c246c             | mov                 ecx, dword ptr [esp + 0x6c]

        $sequence_3 = { 8b45a8 8d55e4 52 50 ffd3 83ec1c 8bcc }
            // n = 7, score = 400
            //   8b45a8               | mov                 eax, dword ptr [ebp - 0x58]
            //   8d55e4               | lea                 edx, [ebp - 0x1c]
            //   52                   | push                edx
            //   50                   | push                eax
            //   ffd3                 | call                ebx
            //   83ec1c               | sub                 esp, 0x1c
            //   8bcc                 | mov                 ecx, esp

        $sequence_4 = { 837dd000 7514 83fbff 770f 807ddc2d 7502 f7db }
            // n = 7, score = 400
            //   837dd000             | cmp                 dword ptr [ebp - 0x30], 0
            //   7514                 | jne                 0x16
            //   83fbff               | cmp                 ebx, -1
            //   770f                 | ja                  0x11
            //   807ddc2d             | cmp                 byte ptr [ebp - 0x24], 0x2d
            //   7502                 | jne                 4
            //   f7db                 | neg                 ebx

        $sequence_5 = { f7d8 5f 5e 5b 5d c3 8bc1 }
            // n = 7, score = 400
            //   f7d8                 | neg                 eax
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi
            //   5b                   | pop                 ebx
            //   5d                   | pop                 ebp
            //   c3                   | ret                 
            //   8bc1                 | mov                 eax, ecx

        $sequence_6 = { ff15???????? 8b15???????? a3???????? a1???????? 52 50 ff15???????? }
            // n = 7, score = 400
            //   ff15????????         |                     
            //   8b15????????         |                     
            //   a3????????           |                     
            //   a1????????           |                     
            //   52                   | push                edx
            //   50                   | push                eax
            //   ff15????????         |                     

        $sequence_7 = { 8b520c 8d45c4 50 ffd2 }
            // n = 4, score = 400
            //   8b520c               | mov                 edx, dword ptr [edx + 0xc]
            //   8d45c4               | lea                 eax, [ebp - 0x3c]
            //   50                   | push                eax
            //   ffd2                 | call                edx

        $sequence_8 = { 8b56ec 52 e8???????? 83c404 4f c7060f000000 }
            // n = 6, score = 400
            //   8b56ec               | mov                 edx, dword ptr [esi - 0x14]
            //   52                   | push                edx
            //   e8????????           |                     
            //   83c404               | add                 esp, 4
            //   4f                   | dec                 edi
            //   c7060f000000         | mov                 dword ptr [esi], 0xf

        $sequence_9 = { 8b5f10 85db 7438 8b4f14 83f910 }
            // n = 5, score = 400
            //   8b5f10               | mov                 ebx, dword ptr [edi + 0x10]
            //   85db                 | test                ebx, ebx
            //   7438                 | je                  0x3a
            //   8b4f14               | mov                 ecx, dword ptr [edi + 0x14]
            //   83f910               | cmp                 ecx, 0x10

    condition:
        7 of them and filesize < 892928
}
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