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Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    19/04/2024, 14:16

General

  • Target

    fa7bac648c3984ac087f8698a3b8d9aa_JaffaCakes118.exe

  • Size

    41KB

  • MD5

    fa7bac648c3984ac087f8698a3b8d9aa

  • SHA1

    e75e80efbbb2bbe55b3c839288fb782cd2318a6c

  • SHA256

    b1ecc4ed8adf7b9e33e5e3a0ea97d13d9f5272c36514e5c91b9e1fb97f839ae2

  • SHA512

    5a97559ce2b024966472e2ea45858d74a4d0942e0dc15f950af52053977e66bc8656ad6afb6a7182e2cd3c7dfaab9302f40905298e4d77a089a755eb126b4031

  • SSDEEP

    768:6scabfwOAge8jy5M/BgwXuZFeJWTjTKZKfgm3Eham:ZcILe8HoeJWTvF7EEm

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discordapp.com/api/webhooks/875488029408636929/9iQryvEzwkNdwwybu4SUrQJdc641YE8LorRjOuTOdsQ3TkMfTKWqJbwksop17BfgeuHk

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.

  • Looks up external IP address via web service 3 IoCs

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

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fa7bac648c3984ac087f8698a3b8d9aa_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fa7bac648c3984ac087f8698a3b8d9aa_JaffaCakes118.exe"
    1⤵
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2120
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2120 -s 1816
      2⤵
        PID:2772

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      68KB

      MD5

      29f65ba8e88c063813cc50a4ea544e93

      SHA1

      05a7040d5c127e68c25d81cc51271ffb8bef3568

      SHA256

      1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

      SHA512

      e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

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

      Filesize

      344B

      MD5

      9c7168e90149caa5cbcb03975fd55fa4

      SHA1

      b68578915f2689212a5da8bb272f8052eee69ce2

      SHA256

      a8cfa93757675b698c0cfd5c9fb06cdf0410428870fc3a3e73261a72772ce41f

      SHA512

      efa09ab6d0c32b820a51903694053b4630c7606cb7498b45e4b35fa4f125006c62f19fe2d777993a9b48f7ebf6c3a5840a3ccfdd8553c54fbee22393275059e9

    • C:\Users\Admin\AppData\Local\Temp\Cab237A.tmp

      Filesize

      65KB

      MD5

      ac05d27423a85adc1622c714f2cb6184

      SHA1

      b0fe2b1abddb97837ea0195be70ab2ff14d43198

      SHA256

      c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

      SHA512

      6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

    • C:\Users\Admin\AppData\Local\Temp\Tar247B.tmp

      Filesize

      177KB

      MD5

      435a9ac180383f9fa094131b173a2f7b

      SHA1

      76944ea657a9db94f9a4bef38f88c46ed4166983

      SHA256

      67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

      SHA512

      1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

    • memory/2120-0-0x00000000011A0000-0x00000000011B0000-memory.dmp

      Filesize

      64KB

    • memory/2120-1-0x000007FEF59E0000-0x000007FEF63CC000-memory.dmp

      Filesize

      9.9MB

    • memory/2120-2-0x000000001B240000-0x000000001B2C0000-memory.dmp

      Filesize

      512KB

    • memory/2120-69-0x000007FEF59E0000-0x000007FEF63CC000-memory.dmp

      Filesize

      9.9MB

    • memory/2120-70-0x000000001B240000-0x000000001B2C0000-memory.dmp

      Filesize

      512KB