Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    19-04-2024 22:13

General

  • Target

    fb47c428877abae11a97f7bb16dc4654_JaffaCakes118.exe

  • Size

    41KB

  • MD5

    fb47c428877abae11a97f7bb16dc4654

  • SHA1

    36ee18c326a07dc1b5a817b4dca345450b025cd2

  • SHA256

    b279247b6e0cc46b9f7f25d7817ce17ef3c79d8bc85babcca20acae001ff9e44

  • SHA512

    9d32db183161cd153dbe1837d734bb3901ba4581f4bc276533d9b8b793bc39f62767b7823e6d4e869c88e1136496ab43b61b58913dafecde4c13a6283b0c8b1a

  • SSDEEP

    768:pscabfwOAi0/aTQSwsuZsJe9WTjmKZKfgm3EhFJ:2cINJe9WTSF7ErJ

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discordapp.com/api/webhooks/867311595049713685/emI5vXnES6OzJ9KNVZNJw1XXVVFL0-6TxE3EnFNhJosGgaAa_D2nEGqYJyHzKRZ_AFwj

Signatures

  • Mercurial Grabber Stealer

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

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • 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.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 1 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • 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\fb47c428877abae11a97f7bb16dc4654_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fb47c428877abae11a97f7bb16dc4654_JaffaCakes118.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Checks SCSI registry key(s)
    • Checks processor information in registry
    • Enumerates system info in registry
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2952
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2952 -s 1808
      2⤵
        PID:2488

    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

      424e3aa910a2897119ee6cdfe80504bb

      SHA1

      553074961a47009af6f560acb05c97ad4e487bf6

      SHA256

      d381cc07782b1b8cf11fec7d397bdfa613d3626bf310ff3fb83492f32b4942da

      SHA512

      b247c09939723b32e01fa3dea75713b4338c6e05333ed2c556c1923ebdf926f10c20b9bfa3597c7051a51ea341318647e4020ede52f2b3babe2ecc00805985e3

    • C:\Users\Admin\AppData\Local\Temp\Cab3D60.tmp

      Filesize

      65KB

      MD5

      ac05d27423a85adc1622c714f2cb6184

      SHA1

      b0fe2b1abddb97837ea0195be70ab2ff14d43198

      SHA256

      c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

      SHA512

      6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

    • C:\Users\Admin\AppData\Local\Temp\Tar3FF6.tmp

      Filesize

      177KB

      MD5

      435a9ac180383f9fa094131b173a2f7b

      SHA1

      76944ea657a9db94f9a4bef38f88c46ed4166983

      SHA256

      67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

      SHA512

      1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

    • memory/2952-0-0x0000000000CC0000-0x0000000000CD0000-memory.dmp

      Filesize

      64KB

    • memory/2952-1-0x000007FEF5C70000-0x000007FEF665C000-memory.dmp

      Filesize

      9.9MB

    • memory/2952-2-0x000000001AC10000-0x000000001AC90000-memory.dmp

      Filesize

      512KB

    • memory/2952-69-0x000007FEF5C70000-0x000007FEF665C000-memory.dmp

      Filesize

      9.9MB

    • memory/2952-70-0x000000001AC10000-0x000000001AC90000-memory.dmp

      Filesize

      512KB