Analysis

  • max time kernel
    143s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-03-2024 04:03

General

  • Target

    1fc2d.exe

  • Size

    3.5MB

  • MD5

    8f94297c9a87de5c84a3c6b2d43a3809

  • SHA1

    611cb3591c6a428f01f82c08c4bea4972635445f

  • SHA256

    e1eda5c9ef3158ecc5dabc82b244def26c0a938c797a1c97752ff32505b0f048

  • SHA512

    033e87be95251798d567dc80d2582880126372668dc021bd008be439d73768b94340301e1ceee3ed2833f73cc35fafc5b522147ddd25a3b685508cd3c363e4a5

  • SSDEEP

    1536:U6+o7BcTd7F+jNFIuj+pVlw4lNJz1VD3zzvizZ5systS34UfNS34Uf:UmFCsZF1jg7TJz15PNyxs

Malware Config

Signatures

  • Panda Stealer payload 5 IoCs
  • PandaStealer

    Panda Stealer is a fork of CollectorProject Stealer written in C++.

  • Shurk

    Shurk is an infostealer, written in C++ which appeared in 2021.

  • Shurk Stealer payload 5 IoCs
  • Detects executables containing SQL queries to confidential data stores. Observed in infostealers 5 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 12 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1fc2d.exe
    "C:\Users\Admin\AppData\Local\Temp\1fc2d.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2300
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4576
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • Delays execution with timeout.exe
        PID:4408
    • C:\Users\Admin\AppData\Local\Temp\1fc2d.exe
      "C:\Users\Admin\AppData\Local\Temp\1fc2d.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:2536
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2300 -s 1236
      2⤵
      • Program crash
      PID:2164
  • 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=3912 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:844
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2300 -ip 2300
      1⤵
        PID:4164

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2300-8-0x00000000064D0000-0x0000000006552000-memory.dmp

        Filesize

        520KB

      • memory/2300-6-0x00000000064C0000-0x00000000064CA000-memory.dmp

        Filesize

        40KB

      • memory/2300-2-0x0000000005380000-0x000000000541C000-memory.dmp

        Filesize

        624KB

      • memory/2300-3-0x0000000007E50000-0x00000000083F4000-memory.dmp

        Filesize

        5.6MB

      • memory/2300-0-0x0000000074E00000-0x00000000755B0000-memory.dmp

        Filesize

        7.7MB

      • memory/2300-5-0x0000000007940000-0x0000000007950000-memory.dmp

        Filesize

        64KB

      • memory/2300-1-0x0000000000670000-0x00000000009F0000-memory.dmp

        Filesize

        3.5MB

      • memory/2300-7-0x0000000074E00000-0x00000000755B0000-memory.dmp

        Filesize

        7.7MB

      • memory/2300-4-0x0000000006420000-0x00000000064B2000-memory.dmp

        Filesize

        584KB

      • memory/2300-38-0x0000000074E00000-0x00000000755B0000-memory.dmp

        Filesize

        7.7MB

      • memory/2300-36-0x0000000007940000-0x0000000007950000-memory.dmp

        Filesize

        64KB

      • memory/2536-11-0x0000000000400000-0x0000000000470000-memory.dmp

        Filesize

        448KB

      • memory/2536-12-0x0000000000400000-0x0000000000470000-memory.dmp

        Filesize

        448KB

      • memory/2536-10-0x0000000000400000-0x0000000000470000-memory.dmp

        Filesize

        448KB

      • memory/2536-37-0x0000000000400000-0x0000000000470000-memory.dmp

        Filesize

        448KB

      • memory/2536-9-0x0000000000400000-0x0000000000470000-memory.dmp

        Filesize

        448KB