Analysis

  • max time kernel
    142s
  • 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
    09-04-2024 09:27

General

  • Target

    e9adfd823ed36e229d4b61c3bf4872eb_JaffaCakes118.exe

  • Size

    247KB

  • MD5

    e9adfd823ed36e229d4b61c3bf4872eb

  • SHA1

    cb4e5bc1fab67672e99adb83ae4cdc7e4d9e0ed4

  • SHA256

    19addd161059ec547168408e4caec7fb62713f30bed662a3e7297723ec6179a3

  • SHA512

    b9a8f460c03b64ada57040e289b9503ee1a2916cb209267025c8c019eee9eb6d213ce5439af5748a79bd58b9d4576b633b46e9bdf57ea2be45633ed9378e0c7d

  • SSDEEP

    3072:818cqLrTYmF7E4UbUTe5MsuukaPTn6nhfpi6Ok:86cqHPTxukTnhfc

Malware Config

Extracted

Family

mercurialgrabber

C2

https://ptb.discord.com/api/webhooks/885550112607174676/jfFMEu2U7CQOr1gzI3mFcQgXTNsOdHVMxANGuS--lFlBW7nGwqXRDeojEkHwROhDPNen

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.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\e9adfd823ed36e229d4b61c3bf4872eb_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e9adfd823ed36e229d4b61c3bf4872eb_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
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:2900
  • 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=3716 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1972

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Defense Evasion

    Virtualization/Sandbox Evasion

    2
    T1497

    Subvert Trust Controls

    1
    T1553

    Install Root Certificate

    1
    T1553.004

    Modify Registry

    1
    T1112

    Credential Access

    Unsecured Credentials

    1
    T1552

    Credentials In Files

    1
    T1552.001

    Discovery

    Query Registry

    7
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    5
    T1082

    Peripheral Device Discovery

    2
    T1120

    Collection

    Data from Local System

    1
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2900-0-0x0000000000070000-0x00000000000B2000-memory.dmp
      Filesize

      264KB

    • memory/2900-1-0x00007FFD839C0000-0x00007FFD84481000-memory.dmp
      Filesize

      10.8MB

    • memory/2900-2-0x000000001ADD0000-0x000000001ADE0000-memory.dmp
      Filesize

      64KB

    • memory/2900-8-0x00007FFD839C0000-0x00007FFD84481000-memory.dmp
      Filesize

      10.8MB

    • memory/2900-9-0x00007FFD839C0000-0x00007FFD84481000-memory.dmp
      Filesize

      10.8MB