Analysis

  • max time kernel
    114s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/04/2024, 08:11

General

  • Target
    S0.KvRIxPT.exe
  • Size 42KB
  • Sample240402-j3gphabf3s
  • SHA256 a74dac946b8d97e1d4e193d64aac8781eb32039412037a195aa10b40a19dc441
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • mercurialgrabber

C2
  • https://discord.com/api/webhooks/1014925257104162816/i_FgV0Vzo9Zj1gKs2wPCtFL9nQzLwfkh1frAZ_EO2HgDoESbbCIxJZtcdGID1SDoDkRZ

Signatures

  • Mercurial Grabber Stealer

    Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.

  • 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 3 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\S0.KvRIxPT.exe
    "C:\Users\Admin\AppData\Local\Temp\S0.KvRIxPT.exe"
    1⤵
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:4076
  • 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=3904 --field-trial-handle=2256,i,6057863739127169200,6895476048812676039,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2696

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/4076-0-0x0000000000AF0000-0x0000000000B00000-memory.dmp

          memory/4076-1-0x00007FFF81040000-0x00007FFF81B01000-memory.dmp

          memory/4076-2-0x000000001B6D0000-0x000000001B6E0000-memory.dmp

          memory/4076-8-0x00007FFF81040000-0x00007FFF81B01000-memory.dmp