Analysis

  • max time kernel
    121s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    08-04-2024 13:58

General

  • Target

    e79dcfec59d7574a33d4df1babbf9ba8_JaffaCakes118.exe

  • Size

    41KB

  • MD5

    e79dcfec59d7574a33d4df1babbf9ba8

  • SHA1

    94ea3ddf5847ce30ff22334b6b1da7679ca5d5e8

  • SHA256

    f1a93508fd94acfb989a6d9de6678e646513afd01ece3189471cc87e789569cf

  • SHA512

    61c12fbc2015168be30d9ce8b32e71c78b570716eb5a5a44df8ecd502dfdbf34860239837207b3b207fdcbc99ffdadb808aef5fa1645e580ae5884ec88413d06

  • SSDEEP

    768:FscG4ApfT6ajQdpDXswQuZkevWTj2sKZKfgm3Eh+9:ScKfnI0evWT9F7E49

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/886666814845755402/8d2suCtc9DoKImt2PFSUR6jFah3d-N_tp_OFIo4RSBn5cxP3MhAe8Vw6k-khLgCuXLv6

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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 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.

  • 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.

  • 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\e79dcfec59d7574a33d4df1babbf9ba8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e79dcfec59d7574a33d4df1babbf9ba8_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)
    • Enumerates system info in registry
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2784
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2784 -s 1732
      2⤵
        PID:2728

    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\Content\F0ACCF77CDCBFF39F6191887F6D2D357

      Filesize

      1KB

      MD5

      a266bb7dcc38a562631361bbf61dd11b

      SHA1

      3b1efd3a66ea28b16697394703a72ca340a05bd5

      SHA256

      df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

      SHA512

      0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

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

      Filesize

      344B

      MD5

      5a79c7f22cba1f38cbd96254887f01b0

      SHA1

      70b41384b625b6a4389365d119ad48de6a805d00

      SHA256

      d0460475e9529c9004369502f2d081bb3fcbfa444215bda082e45bf733766714

      SHA512

      c59a3170b20d230dfe9bbb114891a643ab981d2b1738356a47d78ca671dfd2b14aa41b34f9a1cb41861e6723f529e36fb5521571419824dc6ecaf5a7d8fa78ce

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

      Filesize

      242B

      MD5

      e38da96ab295522b3fab4286aff05bec

      SHA1

      ccd067fb45df08fc3c68187c0745ca469e695001

      SHA256

      d91851b706182b8dce66c0610192d7eb7de25f1de920929526a229bc42523539

      SHA512

      5e9657668a28aa89e0026862a9fce825b692459637072fe4e0332f0e846c40e5472597739af5b4eb98a7db76bf479547b35787c2f94bd1374cb6d329bf3f714b

    • C:\Users\Admin\AppData\Local\Temp\Tar22F1.tmp

      Filesize

      177KB

      MD5

      435a9ac180383f9fa094131b173a2f7b

      SHA1

      76944ea657a9db94f9a4bef38f88c46ed4166983

      SHA256

      67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

      SHA512

      1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

    • memory/2784-0-0x0000000000920000-0x0000000000930000-memory.dmp

      Filesize

      64KB

    • memory/2784-1-0x000007FEF61B0000-0x000007FEF6B9C000-memory.dmp

      Filesize

      9.9MB

    • memory/2784-2-0x000000001A5E0000-0x000000001A660000-memory.dmp

      Filesize

      512KB

    • memory/2784-92-0x000007FEF61B0000-0x000007FEF6B9C000-memory.dmp

      Filesize

      9.9MB

    • memory/2784-93-0x000000001A5E0000-0x000000001A660000-memory.dmp

      Filesize

      512KB