Resubmissions

31/03/2025, 15:24

250331-ss7mlsvps3 10

31/03/2025, 15:08

250331-sh512avmw6 10

Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20250314-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250314-enlocale:en-usos:windows10-ltsc_2021-x64system
  • submitted
    31/03/2025, 15:24

General

  • Target

    NOTIFICO DERECHO DE PETICION; BAJO EL RADICADO 774830-2025. (copy 1).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 WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NOTIFICO DERECHO DE PETICION; BAJO EL RADICADO 774830-2025. (copy 1).exe
    "C:\Users\Admin\AppData\Local\Temp\NOTIFICO DERECHO DE PETICION; BAJO EL RADICADO 774830-2025. (copy 1).exe" bcdedit /c set shutdown /r readonly /f force /t 2
    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:4948
    • 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
      PID:4680
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\Documents\Common7\IDE\Blend.exe
    1⤵
      PID:4804

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4680-3-0x00000000748DE000-0x00000000748DF000-memory.dmp

      Filesize

      4KB

    • memory/4680-4-0x00000000001D0000-0x00000000001E2000-memory.dmp

      Filesize

      72KB

    • memory/4680-7-0x00000000051A0000-0x00000000051B0000-memory.dmp

      Filesize

      64KB

    • memory/4680-8-0x00000000748DE000-0x00000000748DF000-memory.dmp

      Filesize

      4KB

    • memory/4948-0-0x0000000000400000-0x000000000085C000-memory.dmp

      Filesize

      4.4MB

    • memory/4948-1-0x00000000025D0000-0x00000000025FD000-memory.dmp

      Filesize

      180KB

    • memory/4948-2-0x0000000000400000-0x000000000085C000-memory.dmp

      Filesize

      4.4MB

    • memory/4948-6-0x0000000002740000-0x000000000279C000-memory.dmp

      Filesize

      368KB