Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    14-12-2024 22:11

General

  • Target

    f0f18bc9fde3a2850814c5aa8720a60a_JaffaCakes118.exe

  • Size

    251KB

  • MD5

    f0f18bc9fde3a2850814c5aa8720a60a

  • SHA1

    6b4d7b0a834acac19d3e000baef33c189d6de6e2

  • SHA256

    cd054380dd8340a48b80bb707a53a526e74080ed7013731d2a695ae3216c654b

  • SHA512

    30ba79ffaa6d274689b4583bf32e12f9b171f7e2089b8c0003719ae8528c82e0b4f70df6f4de279fb7104188db22acde247cdbd38b703b9b296742e7b9123d5a

  • SSDEEP

    6144:NkrjBJ7NevL4zZDIKGV8z3kuVFML/c6P:NkRVNuktDRTI

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/875481193993371748/t7IHV3pQMZ09Rf609CpkWo0Ily_70_5E-TqS9u3xSZQQIZ2gTRfd-tqcEG22P7BA_kbI

Signatures

  • Mercurial Grabber Stealer

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\f0f18bc9fde3a2850814c5aa8720a60a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f0f18bc9fde3a2850814c5aa8720a60a_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
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1684
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1684 -s 1396
      2⤵
        PID:2776

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1684-0-0x000007FEF5973000-0x000007FEF5974000-memory.dmp

      Filesize

      4KB

    • memory/1684-1-0x0000000000B40000-0x0000000000B84000-memory.dmp

      Filesize

      272KB

    • memory/1684-2-0x000007FEF5970000-0x000007FEF635C000-memory.dmp

      Filesize

      9.9MB

    • memory/1684-3-0x000007FEF5973000-0x000007FEF5974000-memory.dmp

      Filesize

      4KB

    • memory/1684-4-0x000007FEF5970000-0x000007FEF635C000-memory.dmp

      Filesize

      9.9MB

    • memory/1684-5-0x000007FEF5970000-0x000007FEF635C000-memory.dmp

      Filesize

      9.9MB