Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    08-12-2024 18:51

General

  • Target

    d8611f39a130b7af1059ede93d87c6c3_JaffaCakes118.exe

  • Size

    142KB

  • MD5

    d8611f39a130b7af1059ede93d87c6c3

  • SHA1

    7dda66a86aac5de4407af05b74f1b9d26bbe9096

  • SHA256

    a433817a5354dfec6a8da2859811f0d98acb7c40bd79edfa66a65c1ac7b80772

  • SHA512

    cd790a5a0b6d208872ca0edf8d62f6a465c0cb61774f2370fdb7ed8b523955a545f7b3f31280c17e2cde6c791b459dd3a3c32b64a0d5eaec44a03d8db61ff67e

  • SSDEEP

    3072:RS5nrDUBktqZZZZZZXCCCCCCQIrrrrrr3oeeKxm6x6x60r5547ccKWMM+IananoH:eyLCCCCCCQIrrrrrr3oeeKxm6x6x60rt

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/873400650296336434/khJM9vsUDUeXdkblOk1P_tk_nDPF5eALKwlzCZ_7DEre5OkQOAOiKoizYNqFiEql43jh

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\d8611f39a130b7af1059ede93d87c6c3_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\d8611f39a130b7af1059ede93d87c6c3_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 1504
      2⤵
        PID:2820

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1684-0-0x000007FEF5DA3000-0x000007FEF5DA4000-memory.dmp

      Filesize

      4KB

    • memory/1684-1-0x0000000000EA0000-0x0000000000EC8000-memory.dmp

      Filesize

      160KB

    • memory/1684-2-0x00000000003E0000-0x0000000000408000-memory.dmp

      Filesize

      160KB

    • memory/1684-3-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

      Filesize

      9.9MB

    • memory/1684-4-0x000007FEF5DA3000-0x000007FEF5DA4000-memory.dmp

      Filesize

      4KB

    • memory/1684-5-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

      Filesize

      9.9MB

    • memory/1684-6-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

      Filesize

      9.9MB