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Analysis

  • max time kernel
    140s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/12/2024, 13:14

General

  • Target

    FKjdctVS.exe

  • Size

    42KB

  • MD5

    e7871defe3ff71566b3600eea0f61eb4

  • SHA1

    44692b1477d43c48987daa0a34314b770505ebbf

  • SHA256

    b6c68a183d0a85c967cf0e20082da608c7febca84fb66b1c085bef83c4d76894

  • SHA512

    6a560fa39c23ea83a2049209f0e53935c321395755cc86b25ea25b29ff1315f1a7ee49da2960f9c1b796748195653a86d28506cb3e551d6530cb09d289f0cb27

  • SSDEEP

    768:4cNCbujiewetQDGm8UuZyLxYTjsJKZKfgm3Ehik:XcSQD8ILxYTsF7EQk

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/1319288015813873705/C8huyRFXRluYBlR8b0oxd33KZO6CyZgv-Jz8BlN-12x7BXBEBPMZipi5e5oAovfyjlvk

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 4 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\FKjdctVS.exe
    "C:\Users\Admin\AppData\Local\Temp\FKjdctVS.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
    PID:1248

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1248-0-0x0000000000480000-0x0000000000490000-memory.dmp

    Filesize

    64KB

  • memory/1248-1-0x00007FFF759D3000-0x00007FFF759D5000-memory.dmp

    Filesize

    8KB

  • memory/1248-2-0x00007FFF759D0000-0x00007FFF76491000-memory.dmp

    Filesize

    10.8MB

  • memory/1248-3-0x000000001B250000-0x000000001B352000-memory.dmp

    Filesize

    1.0MB

  • memory/1248-4-0x00007FFF759D0000-0x00007FFF76491000-memory.dmp

    Filesize

    10.8MB