Analysis

  • max time kernel
    125s
  • max time network
    173s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    07/05/2022, 04:34

General

  • Target

    zxcvb.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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\zxcvb.exe
    "C:\Users\Admin\AppData\Local\Temp\zxcvb.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1996
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      2⤵
        PID:1716

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1716-66-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1716-70-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1716-71-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1716-63-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1716-58-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1716-59-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1716-64-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1716-61-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1716-67-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1996-54-0x00000000009F0000-0x0000000000A0E000-memory.dmp

      Filesize

      120KB

    • memory/1996-55-0x0000000075B71000-0x0000000075B73000-memory.dmp

      Filesize

      8KB

    • memory/1996-57-0x0000000005E10000-0x0000000005E58000-memory.dmp

      Filesize

      288KB

    • memory/1996-56-0x0000000008840000-0x00000000089A4000-memory.dmp

      Filesize

      1.4MB