Resubmissions

02/01/2024, 17:07

240102-vng79saeem10

02/01/2024, 17:06

240102-vmpwqaaecq10

Analysis

  • max time kernel
    205s
  • max time network
    209s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/01/2024, 17:06

General

  • Target
    wsg.exe
  • Size 41KB
  • Sample240102-vmpwqaaecq
  • SHA256 1207a53bc64f7b8774a19ef6039345ed51d60ff94159f0a527d8045f7aa585f1
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • mercurialgrabber

C2
  • https://discord.com/api/webhooks/1190848829067624500/uYEl9ITM4pLz5Yv1FAaFwyrbiVAGBDIN1F0R_dCEzP6vYGWcQEhLr_OiH4I8JkguFgHs

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
  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\wsg.exe
    "C:\Users\Admin\AppData\Local\Temp\wsg.exe"
    1⤵
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:2356
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4036

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/2356-0-0x0000000000260000-0x0000000000270000-memory.dmp

          memory/2356-2-0x000000001B0C0000-0x000000001B0D0000-memory.dmp

          memory/2356-1-0x00007FFB92A60000-0x00007FFB93521000-memory.dmp

          memory/2356-5-0x00007FFB92A60000-0x00007FFB93521000-memory.dmp

          memory/2356-6-0x000000001B0C0000-0x000000001B0D0000-memory.dmp

          memory/2356-10-0x00007FFB92A60000-0x00007FFB93521000-memory.dmp