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Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    01/04/2024, 09:33

General

  • Target

    6e6fcb3ebbb49e38d9fc25d1c52e59bc_JaffaCakes118.exe

  • Size

    478KB

  • MD5

    6e6fcb3ebbb49e38d9fc25d1c52e59bc

  • SHA1

    2e2a90129b418dc05d29cd3ddb32cd49941fc316

  • SHA256

    afe3bfc6332c25de3e042c7101f1fb3063720884a8921c0e754212cca4c1cf86

  • SHA512

    4d785edfd06a1d6b294bdaeeda00ba2be24fbc4b4f16681b044a5314f919f622facf7eabfbbc91983a35a60601bf889786187afc33022f49c20e7c2dae23167e

  • SSDEEP

    12288:ok5NWNPvHfEuJqF87cqNv2iNI65WJ2GaoCe8phFUr:vcXHAFkPNv2K

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/897216012603256842/Zf1W7RTuEyIvXw2r12OgP8sa8I5_odqhiTlFF6XnWhig090X7dOOZ6hDa2OY4AoeRrjc

Signatures

  • Mercurial Grabber Stealer

    Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6e6fcb3ebbb49e38d9fc25d1c52e59bc_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\6e6fcb3ebbb49e38d9fc25d1c52e59bc_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2656
    • C:\Users\Admin\AppData\Local\Temp\6e6fcb3ebbb49e38d9fc25d1c52e59bc_JaffaCakes118.exe
      "6e6fcb3ebbb49e38d9fc25d1c52e59bc_JaffaCakes118.exe"
      2⤵
      • Checks processor information in registry
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2632
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2632 -s 1852
        3⤵
        • Program crash
        PID:1964

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\CabA343.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\TarA4FF.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • memory/2632-17-0x0000000074650000-0x0000000074D3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2632-107-0x0000000074650000-0x0000000074D3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2632-18-0x0000000002310000-0x0000000002350000-memory.dmp

    Filesize

    256KB

  • memory/2632-15-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2632-7-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2632-8-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2632-9-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2632-10-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2632-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2632-13-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2632-14-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2656-5-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/2656-16-0x0000000074650000-0x0000000074D3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2656-6-0x0000000000290000-0x00000000002A8000-memory.dmp

    Filesize

    96KB

  • memory/2656-0-0x0000000000870000-0x00000000008F2000-memory.dmp

    Filesize

    520KB

  • memory/2656-4-0x00000000047B0000-0x000000000483C000-memory.dmp

    Filesize

    560KB

  • memory/2656-3-0x0000000004770000-0x00000000047B0000-memory.dmp

    Filesize

    256KB

  • memory/2656-2-0x0000000000230000-0x0000000000236000-memory.dmp

    Filesize

    24KB

  • memory/2656-1-0x0000000074650000-0x0000000074D3E000-memory.dmp

    Filesize

    6.9MB