Analysis

  • max time kernel
    138s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    19/04/2022, 04:12

General

  • Target

    asdf.exe

  • Size

    100KB

  • MD5

    c7a310982da68b10360854f9cd78e718

  • SHA1

    60140c28e0b7db797a771c2dee081fa3812246db

  • SHA256

    df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731

  • SHA512

    6747fa3f7637922eeaa0feeb25d430dc6ab66fd9f3d22e7e5fd16bad9b75528a8174c34a8baf681950b64e8cdaa6a14e37633592e843c363e75468622ebd2ec3

Score
10/10

Malware Config

Extracted

Family

arkei

Botnet

Default

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\asdf.exe
    "C:\Users\Admin\AppData\Local\Temp\asdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1676
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      2⤵
        PID:416

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/416-135-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/416-137-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/416-138-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/1676-130-0x0000000000360000-0x000000000037E000-memory.dmp

            Filesize

            120KB

          • memory/1676-131-0x0000000005360000-0x0000000005904000-memory.dmp

            Filesize

            5.6MB

          • memory/1676-132-0x0000000004DB0000-0x0000000004E42000-memory.dmp

            Filesize

            584KB

          • memory/1676-133-0x0000000004D30000-0x0000000004D3A000-memory.dmp

            Filesize

            40KB