Analysis

  • max time kernel
    122s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-01-2025 00:23

General

  • Target

    JaffaCakes118_409eed418408597f0a962a72084954fc.exe

  • Size

    302KB

  • MD5

    409eed418408597f0a962a72084954fc

  • SHA1

    138afac3a26afe9ae80c2f4039aa37b683c720a4

  • SHA256

    1b8fb7ba5b8df9b78b495cd8bf6dcfa9f2c2788ca14db5f0a8c6f764477e8651

  • SHA512

    483cf76c9c59d024491c68bb8678676060e1b375e4b3264aad4a88ef85bb5a300e4210d56d0a3e7677dbf19d101e72b9fd11c8f9a4a91d04234b8fd023eda8a8

  • SSDEEP

    6144:vRCiEKbuoRwE5WTrKi4LnqYkmIRZr/sBrD/jk9jtqpa7xjLazT:dbuoF5ErKNqKIt/0bk9jt4aFw

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/899039214799302707/qsWKqfMDHZvpjKdUaLOScVIgdq1amrTWt3H7cYjN7JYAUUvivw72drT90nFEQohSqE7a

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_409eed418408597f0a962a72084954fc.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_409eed418408597f0a962a72084954fc.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:2316
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2316 -s 1340
      2⤵
        PID:2312

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2316-0-0x000007FEF59E3000-0x000007FEF59E4000-memory.dmp

      Filesize

      4KB

    • memory/2316-1-0x0000000000980000-0x00000000009D2000-memory.dmp

      Filesize

      328KB

    • memory/2316-2-0x000007FEF59E0000-0x000007FEF63CC000-memory.dmp

      Filesize

      9.9MB

    • memory/2316-3-0x000007FEF59E3000-0x000007FEF59E4000-memory.dmp

      Filesize

      4KB

    • memory/2316-4-0x000007FEF59E0000-0x000007FEF63CC000-memory.dmp

      Filesize

      9.9MB

    • memory/2316-5-0x000007FEF59E0000-0x000007FEF63CC000-memory.dmp

      Filesize

      9.9MB