Analysis

  • max time kernel
    142s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/03/2023, 11:02

General

  • Target
    impvqfag - Copy.exe
  • Size 168KB
  • Sample230323-m468bsfb74
  • SHA256 d6d03b39851da54f93d35a89fa243ebc01b45b6f7ed5590605d64bda89fd293d
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\impvqfag - Copy.exe
    "C:\Users\Admin\AppData\Local\Temp\impvqfag - Copy.exe"
    1⤵
    • Checks computer location settings
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4992
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /C timeout 5 & del "C:\Users\Admin\AppData\Local\Temp\impvqfag - Copy.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2704
      • C:\Windows\SysWOW64\timeout.exe
        timeout 5
        3⤵
        • Delays execution with timeout.exe
        PID:2272

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/4992-133-0x0000000001130000-0x0000000001140000-memory.dmp

        memory/4992-134-0x0000000001130000-0x0000000001140000-memory.dmp