SYMBOLCOMMON_NAMEaka. SYNONYMS
win.shapeshift (Back to overview)

SHAPESHIFT

Actor(s): APT33


There is no description at this point.

References
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_shapeshift_auto (20201023 | autogenerated rule brought to you by yara-signator)
rule win_shapeshift_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-12-22"
        version = "1"
        description = "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.shapeshift"
        malpedia_rule_date = "20201222"
        malpedia_hash = "30354d830a29f0fbd3714d93d94dea941d77a130"
        malpedia_version = "20201023"
        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 = { e8???????? 51 8d85e8fdffff 50 51 }
            // n = 5, score = 100
            //   e8????????           |                     
            //   51                   | push                ecx
            //   8d85e8fdffff         | lea                 eax, [ebp - 0x218]
            //   50                   | push                eax
            //   51                   | push                ecx

        $sequence_1 = { f7f1 8915???????? 8bc2 8b4df4 64890d00000000 59 8be5 }
            // n = 7, score = 100
            //   f7f1                 | div                 ecx
            //   8915????????         |                     
            //   8bc2                 | mov                 eax, edx
            //   8b4df4               | mov                 ecx, dword ptr [ebp - 0xc]
            //   64890d00000000       | mov                 dword ptr fs:[0], ecx
            //   59                   | pop                 ecx
            //   8be5                 | mov                 esp, ebp

        $sequence_2 = { ff15???????? 46 83fe05 72ea 8b4df8 }
            // n = 5, score = 100
            //   ff15????????         |                     
            //   46                   | inc                 esi
            //   83fe05               | cmp                 esi, 5
            //   72ea                 | jb                  0xffffffec
            //   8b4df8               | mov                 ecx, dword ptr [ebp - 8]

        $sequence_3 = { 0fb689589a4100 8808 0fbf0d???????? 50 6a00 6a00 0fb689589a4100 }
            // n = 7, score = 100
            //   0fb689589a4100       | movzx               ecx, byte ptr [ecx + 0x419a58]
            //   8808                 | mov                 byte ptr [eax], cl
            //   0fbf0d????????       |                     
            //   50                   | push                eax
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   0fb689589a4100       | movzx               ecx, byte ptr [ecx + 0x419a58]

        $sequence_4 = { 8b04bd38054200 834c0318ff 33c0 eb16 e8???????? }
            // n = 5, score = 100
            //   8b04bd38054200       | mov                 eax, dword ptr [edi*4 + 0x420538]
            //   834c0318ff           | or                  dword ptr [ebx + eax + 0x18], 0xffffffff
            //   33c0                 | xor                 eax, eax
            //   eb16                 | jmp                 0x18
            //   e8????????           |                     

        $sequence_5 = { 8d4c2450 8bd3 e8???????? 83f802 750b }
            // n = 5, score = 100
            //   8d4c2450             | lea                 ecx, [esp + 0x50]
            //   8bd3                 | mov                 edx, ebx
            //   e8????????           |                     
            //   83f802               | cmp                 eax, 2
            //   750b                 | jne                 0xd

        $sequence_6 = { 660f282d???????? 660f59f5 660f28aa40904100 660f54e5 660f58fe }
            // n = 5, score = 100
            //   660f282d????????     |                     
            //   660f59f5             | mulpd               xmm6, xmm5
            //   660f28aa40904100     | movapd              xmm5, xmmword ptr [edx + 0x419040]
            //   660f54e5             | andpd               xmm4, xmm5
            //   660f58fe             | addpd               xmm7, xmm6

        $sequence_7 = { e8???????? 6a00 6a02 ff15???????? 8bfb ff15???????? 8944242c }
            // n = 7, score = 100
            //   e8????????           |                     
            //   6a00                 | push                0
            //   6a02                 | push                2
            //   ff15????????         |                     
            //   8bfb                 | mov                 edi, ebx
            //   ff15????????         |                     
            //   8944242c             | mov                 dword ptr [esp + 0x2c], eax

    condition:
        7 of them and filesize < 303104
}
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