Analysis

  • max time kernel
    149s
  • 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
    07-12-2024 03:00

General

  • Target

    roaricle.exe

  • Size

    63KB

  • MD5

    9f39043be09533636bbfdd4ec3101f6a

  • SHA1

    1e964ba2a874c24a5fdc430c827a1ba82dc657ab

  • SHA256

    179027517e90f9e8173f63ba247d7c0d414259fdef3a29a5692c85d84dce557d

  • SHA512

    09c0573e2f4db331714d86d32abf9623b5a9560c1e7ac8359a0ef434cc79940143e837a2674aa5140b79e1b1302faf75df9959d184109aad231db78a90139233

  • SSDEEP

    1536:PJxFz3FI8Cwof4wJ6Vfh2MBPG2bPw0mQCfhGxZVclN:PJxFz3FI8Cwo7J6VJL1G2bPTCfwzY

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

fojeweb571-45302.portmap.host:4782

fojeweb571-45302.portmap.host:45302

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    true

  • install_file

    windows defender firewall.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • Async RAT payload 1 IoCs
  • 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).

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

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

  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\roaricle.exe
    "C:\Users\Admin\AppData\Local\Temp\roaricle.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1056
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "windows defender firewall" /tr '"C:\Users\Admin\AppData\Roaming\windows defender firewall.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1416
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "windows defender firewall" /tr '"C:\Users\Admin\AppData\Roaming\windows defender firewall.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2484
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpB4E8.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4144
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:1496
      • C:\Users\Admin\AppData\Roaming\windows defender firewall.exe
        "C:\Users\Admin\AppData\Roaming\windows defender firewall.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2524

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpB4E8.tmp.bat

    Filesize

    169B

    MD5

    1584e10c4f1435ef7300f176e4a81515

    SHA1

    8505263610fe9f68f72ceae402bb1eef77d1f682

    SHA256

    50d93a9fe0c12d02fc6f135da92189ab804b7d9aa22ff65a011ce588fb399c5c

    SHA512

    37c701bd64f53d56f7367d53d2eb2388ca046f779ba01f449f55afbf19dab474424d852771e85cd668789396c8f5ac518bc2f916ed2bbff952da0f17c080fcd0

  • C:\Users\Admin\AppData\Roaming\windows defender firewall.exe

    Filesize

    63KB

    MD5

    9f39043be09533636bbfdd4ec3101f6a

    SHA1

    1e964ba2a874c24a5fdc430c827a1ba82dc657ab

    SHA256

    179027517e90f9e8173f63ba247d7c0d414259fdef3a29a5692c85d84dce557d

    SHA512

    09c0573e2f4db331714d86d32abf9623b5a9560c1e7ac8359a0ef434cc79940143e837a2674aa5140b79e1b1302faf75df9959d184109aad231db78a90139233

  • memory/1056-0-0x00007FFDC0733000-0x00007FFDC0735000-memory.dmp

    Filesize

    8KB

  • memory/1056-1-0x0000000000640000-0x0000000000656000-memory.dmp

    Filesize

    88KB

  • memory/1056-2-0x00007FFDC0730000-0x00007FFDC11F1000-memory.dmp

    Filesize

    10.8MB

  • memory/1056-8-0x00007FFDC0730000-0x00007FFDC11F1000-memory.dmp

    Filesize

    10.8MB

  • memory/1056-7-0x00007FFDC0730000-0x00007FFDC11F1000-memory.dmp

    Filesize

    10.8MB