Analysis

  • max time kernel
    135s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-12-2024 02:10

General

  • Target

    Payment-Order #24560274 for 8,380 USD.exe

  • Size

    392KB

  • MD5

    eac2017286abefbd21b28e7f9fcab248

  • SHA1

    02f90ba750bf3801e286ecfbf3467110f8b2ef94

  • SHA256

    e8f6dc455cea42a08feb8fcf5a34928864d537ec5ec905576cee58c9fabd6a5f

  • SHA512

    fa0a14b1bfce0fac1bbb1488f319dd864b9a94e784a6a637907d3bd31dddb80043de71ee582def13e72b9a4c2490c1738fa8d676feb3bc519d26bc75936db48b

  • SSDEEP

    12288:OaoO2yd67Jss86xlfLfC7hgooOK6YQMhUZC9WpVyi:OnV8gooOeQtrl

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

91.223.3.156:7707

91.223.3.156:8808

Mutex

TcNC0kSWrpnZ

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Asyncrat family
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Windows security modification 2 TTPs 3 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment-Order #24560274 for 8,380 USD.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment-Order #24560274 for 8,380 USD.exe"
    1⤵
    • UAC bypass
    • Windows security bypass
    • Checks computer location settings
    • Windows security modification
    • Checks whether UAC is enabled
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2940
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Payment-Order #24560274 for 8,380 USD.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4020
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2548
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
      2⤵
        PID:920

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wbsb0ncv.jgv.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/2548-18-0x000000007457E000-0x000000007457F000-memory.dmp

      Filesize

      4KB

    • memory/2548-4-0x0000000000400000-0x0000000000412000-memory.dmp

      Filesize

      72KB

    • memory/2940-1-0x000001F976760000-0x000001F9767C4000-memory.dmp

      Filesize

      400KB

    • memory/2940-2-0x000001F978BC0000-0x000001F978C24000-memory.dmp

      Filesize

      400KB

    • memory/2940-3-0x00007FF8DBAB0000-0x00007FF8DC571000-memory.dmp

      Filesize

      10.8MB

    • memory/2940-0-0x00007FF8DBAB3000-0x00007FF8DBAB5000-memory.dmp

      Filesize

      8KB

    • memory/2940-22-0x00007FF8DBAB0000-0x00007FF8DC571000-memory.dmp

      Filesize

      10.8MB

    • memory/4020-14-0x00007FF8DBAB0000-0x00007FF8DC571000-memory.dmp

      Filesize

      10.8MB

    • memory/4020-17-0x00007FF8DBAB0000-0x00007FF8DC571000-memory.dmp

      Filesize

      10.8MB

    • memory/4020-16-0x00007FF8DBAB0000-0x00007FF8DC571000-memory.dmp

      Filesize

      10.8MB

    • memory/4020-21-0x00007FF8DBAB0000-0x00007FF8DC571000-memory.dmp

      Filesize

      10.8MB

    • memory/4020-15-0x000001D6D0BA0000-0x000001D6D0BC2000-memory.dmp

      Filesize

      136KB