Analysis

  • max time kernel
    835s
  • max time network
    894s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    29/01/2025, 20:47

General

  • Target

    NOTIFICO DERECHO DE PETICION; BAJO EL RADICADO 774830-2025..exe

  • Size

    4.3MB

  • MD5

    d459191c46fe47459df7c3ca0ebdcf9d

  • SHA1

    e37f0be08a980f9425440422b922563f72529076

  • SHA256

    946ee9f5d6e40bc70775ca64e640dab42dd837315d3dea79e5e965d94e77080c

  • SHA512

    7f6cf43360a80373335438d8994ff1d8c853ed067be51eff4c5584bebd61084881b380f9b206cd2f20288ab6ea8ae16f0cc5144b59ea7917d02af23582514902

  • SSDEEP

    49152:hCXtvRXOhEc2MgyXuTEGQpOEaIZaFChW7ZajQVM0RFC1zNURFZufu4vbRF:hCxRXOhEc2MgYHTpokQVMcFAp8FZQ1F

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

ff

C2

85.31.47.59:8848

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NOTIFICO DERECHO DE PETICION; BAJO EL RADICADO 774830-2025..exe
    "C:\Users\Admin\AppData\Local\Temp\NOTIFICO DERECHO DE PETICION; BAJO EL RADICADO 774830-2025..exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2600
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2060
  • C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    1⤵
      PID:1780

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\CabD413.tmp

      Filesize

      70KB

      MD5

      49aebf8cbd62d92ac215b2923fb1b9f5

      SHA1

      1723be06719828dda65ad804298d0431f6aff976

      SHA256

      b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

      SHA512

      bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

    • memory/2060-2-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

      Filesize

      4KB

    • memory/2060-4-0x0000000073E5E000-0x0000000073E5F000-memory.dmp

      Filesize

      4KB

    • memory/2060-5-0x0000000000080000-0x0000000000092000-memory.dmp

      Filesize

      72KB

    • memory/2060-7-0x0000000002410000-0x0000000002450000-memory.dmp

      Filesize

      256KB

    • memory/2060-24-0x0000000002410000-0x0000000002450000-memory.dmp

      Filesize

      256KB

    • memory/2600-0-0x0000000000400000-0x000000000085C000-memory.dmp

      Filesize

      4.4MB

    • memory/2600-1-0x00000000001C0000-0x00000000001ED000-memory.dmp

      Filesize

      180KB

    • memory/2600-3-0x0000000000400000-0x000000000085C000-memory.dmp

      Filesize

      4.4MB

    • memory/2600-6-0x00000000008D0000-0x000000000092C000-memory.dmp

      Filesize

      368KB