Analysis

  • max time kernel
    137s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-04-2024 09:14

General

  • Target

    fef2d719561bfa330d7aa2ea23effa6a_JaffaCakes118.exe

  • Size

    41KB

  • MD5

    fef2d719561bfa330d7aa2ea23effa6a

  • SHA1

    4798e3e00865efb7941bb95fd87da43528e5af36

  • SHA256

    a61de72fe9e8d4c77fa8e91193e7ab59e6d3b57e54f6d144a4b99eeee9a034b9

  • SHA512

    fe811a4f3203ce49d126a5b5c08aab47b6311b4ed80b4416a7bf6b466f68d96c8af4127c59188288245a4412a865832b5be36f64f80326e7f6b1bef384e15918

  • SSDEEP

    768:CscGoA+MKl9cw9uZleZWTjjKZKfgm3Eh5G:RcvMKlseZWTnF7ETG

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/870967981742641193/ROHOBqTR3-RIWmxR4llbbcZt0EHAj4s0M2GhIKkKwJzDYrFKFrkh2-DoikVNxb8SFOZD

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.

  • 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.

  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\fef2d719561bfa330d7aa2ea23effa6a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fef2d719561bfa330d7aa2ea23effa6a_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)
    • Enumerates system info in registry
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:1724

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1724-0-0x0000000000E80000-0x0000000000E90000-memory.dmp

    Filesize

    64KB

  • memory/1724-1-0x00007FFE59CB0000-0x00007FFE5A771000-memory.dmp

    Filesize

    10.8MB

  • memory/1724-2-0x0000000003000000-0x0000000003010000-memory.dmp

    Filesize

    64KB

  • memory/1724-8-0x00007FFE59CB0000-0x00007FFE5A771000-memory.dmp

    Filesize

    10.8MB