Analysis

  • max time kernel
    117s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2024 04:44

General

  • Target

    JaffaCakes118_f82abf40d8dba7e95b599d6da4fe1ca8.exe

  • Size

    42KB

  • MD5

    f82abf40d8dba7e95b599d6da4fe1ca8

  • SHA1

    12c8c45fc41aca8835a4322a51d7e16397d18aa7

  • SHA256

    4f6f9f506a46bdebbd49810697a5ac18594519b2f967dd3efe8f5cc1338f5ee1

  • SHA512

    d6bb7b225cb8a4bf163dd44d7dbfc031096229ea981fc73394ed45a3d219f22df2de8795067ee7d00841ab4aa9fb3fe606b075e4c02209d4cef37e806bc06fe0

  • SSDEEP

    768:sPwQ5Ehi4//4MzuZnL2lTjVK6Kfgm3Ehg9:uE0aDwL2lTZ+7Eu9

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/926188366184189993/zwM_TLbliOIXmneGu2eem2xQ85ZWaWcQhFrI9L0O1E2WYXCxztiGwbrVLc42r8PHJQ2K

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\JaffaCakes118_f82abf40d8dba7e95b599d6da4fe1ca8.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f82abf40d8dba7e95b599d6da4fe1ca8.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:2212
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2212 -s 1396
      2⤵
        PID:3000

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2212-0-0x000007FEF61C3000-0x000007FEF61C4000-memory.dmp

      Filesize

      4KB

    • memory/2212-1-0x0000000000C60000-0x0000000000C70000-memory.dmp

      Filesize

      64KB

    • memory/2212-2-0x000007FEF61C0000-0x000007FEF6BAC000-memory.dmp

      Filesize

      9.9MB

    • memory/2212-3-0x000007FEF61C3000-0x000007FEF61C4000-memory.dmp

      Filesize

      4KB

    • memory/2212-4-0x000007FEF61C0000-0x000007FEF6BAC000-memory.dmp

      Filesize

      9.9MB

    • memory/2212-5-0x000007FEF61C0000-0x000007FEF6BAC000-memory.dmp

      Filesize

      9.9MB