Analysis

  • max time kernel
    121s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    10-04-2024 16:55

General

  • Target

    eb8bf9de8ed605a79f3b4834ee654fda_JaffaCakes118.exe

  • Size

    158KB

  • MD5

    eb8bf9de8ed605a79f3b4834ee654fda

  • SHA1

    2952322495eb41003dc8b97859d5a97bdde9251d

  • SHA256

    0521bb85472869598d9aa822b11edc04044dbe876dbf9900565bfdc8e02c2b21

  • SHA512

    d2d6f590c391ecfe9ad1a08023c06cce661836216d116695adeb6df660377eb87026af6302b28fffad417faea39282c46a19c45fa0ad2790486448d6968cb307

  • SSDEEP

    1536:wcKfnSXceuWT7xF7E7eQ43LbNMkjMQynuQRwPV:18SXce7TlF7Ei/3VVGC

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/877157186038538242/Jfn5YJR9dTyjNeBSpcWKRLNBhoSeee29t9iufwyScwEjBuFZfgYTH8chtFnrCnenyW_3

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\eb8bf9de8ed605a79f3b4834ee654fda_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\eb8bf9de8ed605a79f3b4834ee654fda_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
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2224
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2224 -s 1100
      2⤵
        PID:2532

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2224-0-0x0000000001200000-0x000000000122C000-memory.dmp

      Filesize

      176KB

    • memory/2224-1-0x000007FEF50B0000-0x000007FEF5A9C000-memory.dmp

      Filesize

      9.9MB

    • memory/2224-5-0x0000000001180000-0x0000000001200000-memory.dmp

      Filesize

      512KB

    • memory/2224-6-0x000007FEF50B0000-0x000007FEF5A9C000-memory.dmp

      Filesize

      9.9MB

    • memory/2224-7-0x0000000001180000-0x0000000001200000-memory.dmp

      Filesize

      512KB