Overview

overview

10

Static

static

10

b6c5815536...6f.exe

windows7-x64

10

b6c5815536...6f.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    141s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-12-2024 04:23

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General

  • Target

    b6c58155365a5e35952e46611fd7b43e36e256903bff2030bc07a3c6841b836f.exe

  • Size

    45KB

  • MD5

    7ace559d317742937e8254dc6da92a7e

  • SHA1

    e4986e5b11b96bedc62af5cfb3b48bed58d8d1c9

  • SHA256

    b6c58155365a5e35952e46611fd7b43e36e256903bff2030bc07a3c6841b836f

  • SHA512

    2c50337078075dc6bfd8b02d77d4de8e5b9ad5b01deed1a3b4f3eb0b2d21efce2736e74d5cf94fdf937bcc2a51c2ecf98022049c706350feacb079c4b968d5d3

  • SSDEEP

    768:hukaVT3ongoWU2zjimo2qrrKjGKG6PIyzjbFgX3ij8z+vfYO4qHBDZMhd:hukaVT3QR2mKYDy3bCXSjlfYQdMd

Score
10/10
asyncratdefaultdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

96.248.52.125:8031

Mutex

adobe_6SI8OkPnk

Attributes
  • delay

    3

  • install

    true

  • install_file

    update.exe

  • install_folder

    %Temp%

aes.plain

Signatures

  • AsyncRat

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

    ratasyncrat
  • Asyncrat family
    asyncrat
  • Async RAT payload 1 IoCs
    rat
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 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 6 IoCs

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

    discovery
  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b6c58155365a5e35952e46611fd7b43e36e256903bff2030bc07a3c6841b836f.exe
    "C:\Users\Admin\AppData\Local\Temp\b6c58155365a5e35952e46611fd7b43e36e256903bff2030bc07a3c6841b836f.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3644
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "update" /tr '"C:\Users\Admin\AppData\Local\Temp\update.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:264
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "update" /tr '"C:\Users\Admin\AppData\Local\Temp\update.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3192
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA9CD.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4640
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4452
      • C:\Users\Admin\AppData\Local\Temp\update.exe
        "C:\Users\Admin\AppData\Local\Temp\update.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:976

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpA9CD.tmp.bat
    Filesize

    153B

    MD5

    865fd2f4b435f0cbb25a1212c8507a54

    SHA1

    09b5367d043e34b523649164ce297ee502216a1e

    SHA256

    d9a2837d1df8d4a10ada8448f18de79a97d1bd3456d5a61ed37fd4ac9bf83a4c

    SHA512

    f396b1e9f14230200e34ddb93aefbbb540051b9c2d41f268ffafc740fa74366f5df4e80372f3df3ce641d9a39329a1da2dee0474dbd17194b4c9ef13963d8ea5

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\update.exe
    Filesize

    45KB

    MD5

    7ace559d317742937e8254dc6da92a7e

    SHA1

    e4986e5b11b96bedc62af5cfb3b48bed58d8d1c9

    SHA256

    b6c58155365a5e35952e46611fd7b43e36e256903bff2030bc07a3c6841b836f

    SHA512

    2c50337078075dc6bfd8b02d77d4de8e5b9ad5b01deed1a3b4f3eb0b2d21efce2736e74d5cf94fdf937bcc2a51c2ecf98022049c706350feacb079c4b968d5d3

    Download Submit

  • memory/976-13-0x00000000751A0000-0x0000000075950000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/976-14-0x00000000751A0000-0x0000000075950000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/3644-0-0x000000007522E000-0x000000007522F000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3644-1-0x0000000000DA0000-0x0000000000DB2000-memory.dmp

    Filesize

    72KB

    Download

  • memory/3644-2-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/3644-3-0x0000000005800000-0x000000000589C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/3644-9-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

    Download