Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-04-2024 03:23

General

  • Target

    f4edcee0fccea560a55fd5a0af220a12_JaffaCakes118.exe

  • Size

    433KB

  • MD5

    f4edcee0fccea560a55fd5a0af220a12

  • SHA1

    263b1b7293692ff6cdf69b50b3250226940a2130

  • SHA256

    b87fbc334f9b723fe13dca8df569d4d69cee53228c94d98c05c5dda213126a92

  • SHA512

    aa2e224eb9951e748f8c54dd5a7f1175c9ee55e43cb85a9ea22c0ada89cb2bb07a428a8ad2118a10e5dcbcea88a7ed54df254d40cad4c9f6f40977efc5c2e28c

  • SSDEEP

    12288:aRZ+IoG/n9IQxW3OBsFGBHbpbmhshwKcrV:U2G/nvxW3Wl71mhLV

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/868606688339558410/hidbzrVtZvqqfQVZoZpaSpgBQWT8GpwqLDeONZx5uuJgGuKvizm4h547bL-l3GvbBDmQ

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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • 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
  • Looks up external IP address via web service 3 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.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f4edcee0fccea560a55fd5a0af220a12_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f4edcee0fccea560a55fd5a0af220a12_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2160
    • C:\Users\Public\Music\Error.exe
      "C:\Users\Public\Music\Error.exe"
      2⤵
      • Looks for VirtualBox Guest Additions in registry
      • Looks for VMWare Tools registry key
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Maps connected drives based on registry
      • Checks SCSI registry key(s)
      • Enumerates system info in registry
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      PID:4048
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3936 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2168

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Public\Music\Error.exe

      Filesize

      464KB

      MD5

      73f44de74e14e6a9cdf3d6d19090cfc7

      SHA1

      9b27733481a7a1d3c099796d7790a6fa1a2946e7

      SHA256

      0f440adddffe2a3c2861dcd10da95d37bbe99ac0f8364e977bfe8e7233667bf7

      SHA512

      a99ed4f04dc9594512a92fb2d5bb1b1f38dc29098cfe20b67cdcfbce10d2839158eebf90bd90c79d612c4de7e3ec1d57a96e795f52f13e16a707594e6a3a4e1d

    • memory/4048-14-0x00000000003C0000-0x0000000000438000-memory.dmp

      Filesize

      480KB

    • memory/4048-15-0x00007FFC3CD60000-0x00007FFC3D821000-memory.dmp

      Filesize

      10.8MB

    • memory/4048-16-0x000000001B160000-0x000000001B170000-memory.dmp

      Filesize

      64KB

    • memory/4048-20-0x00007FFC3CD60000-0x00007FFC3D821000-memory.dmp

      Filesize

      10.8MB