Overview

overview

10

Static

static

10

cab2ada39e...a1.exe

windows7-x64

10

cab2ada39e...a1.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    142s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-10-2024 03:05

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General

  • Target

    cab2ada39e0f2598b71fcc7285104fd686395c9c38dc4a307d0fb104578a04a1.exe

  • Size

    48KB

  • MD5

    89e08f42736cac8b697ffda76d4f2d73

  • SHA1

    f51cfed16178cb0baeb89a3e86a3d0d4c663d70e

  • SHA256

    cab2ada39e0f2598b71fcc7285104fd686395c9c38dc4a307d0fb104578a04a1

  • SHA512

    d8d073e467a54b2556015702d49af91c68f0febf2d61247f9a9c54e9ebcaa7099446f99a3c70349e4a629a46dba2796bdc78f54e9a692166cd11bd8cf43dd69d

  • SSDEEP

    768:quqJ1TUo0+Q4WUmmjSmo2qMk9h1qpzm/kPI5V5YDZeU0bL28s189HX6PEW/haoyp:quqJ1TU2e2yam/J5V5Y8bL25UHKceHdM

Score
10/10
asyncratdefaultdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

37.112.34.178:1070

Mutex

gnRQgC1xq8fz

Attributes
  • delay

    3

  • install

    true

  • install_file

    MoUsoCoreWorker.exe

  • install_folder

    %AppData%

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\cab2ada39e0f2598b71fcc7285104fd686395c9c38dc4a307d0fb104578a04a1.exe
    "C:\Users\Admin\AppData\Local\Temp\cab2ada39e0f2598b71fcc7285104fd686395c9c38dc4a307d0fb104578a04a1.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3580
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "MoUsoCoreWorker" /tr '"C:\Users\Admin\AppData\Roaming\MoUsoCoreWorker.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4308
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "MoUsoCoreWorker" /tr '"C:\Users\Admin\AppData\Roaming\MoUsoCoreWorker.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:944
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp83D6.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2812
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:3664
      • C:\Users\Admin\AppData\Roaming\MoUsoCoreWorker.exe
        "C:\Users\Admin\AppData\Roaming\MoUsoCoreWorker.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4540

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp83D6.tmp.bat
    Filesize

    159B

    MD5

    e6444e2176f710acead5013e7aa75158

    SHA1

    e14eecde7c785da09911a2e0fc6f905e3b21064f

    SHA256

    8da6b2e508f31be64419ad82362581dcae0533c0072b8581366794e8838bf1d9

    SHA512

    23cbc4a81fc7dbacf8f1371c51241a2fe482cb8365188d279e0144dc62d2fa3be38e8ca5b8d6b64f442867cdcfabe9f5a51e5c26f60434d025404270a9eacbc2

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  • C:\Users\Admin\AppData\Roaming\MoUsoCoreWorker.exe
    Filesize

    48KB

    MD5

    89e08f42736cac8b697ffda76d4f2d73

    SHA1

    f51cfed16178cb0baeb89a3e86a3d0d4c663d70e

    SHA256

    cab2ada39e0f2598b71fcc7285104fd686395c9c38dc4a307d0fb104578a04a1

    SHA512

    d8d073e467a54b2556015702d49af91c68f0febf2d61247f9a9c54e9ebcaa7099446f99a3c70349e4a629a46dba2796bdc78f54e9a692166cd11bd8cf43dd69d

    Download Submit

  • memory/3580-0-0x000000007494E000-0x000000007494F000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3580-1-0x0000000000FA0000-0x0000000000FB2000-memory.dmp

    Filesize

    72KB

    Download

  • memory/3580-2-0x0000000074940000-0x00000000750F0000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/3580-3-0x00000000057F0000-0x0000000005856000-memory.dmp

    Filesize

    408KB

    Download

  • memory/3580-4-0x0000000005CA0000-0x0000000005D3C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/3580-9-0x0000000074940000-0x00000000750F0000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4540-14-0x0000000074940000-0x00000000750F0000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4540-15-0x0000000074940000-0x00000000750F0000-memory.dmp

    Filesize

    7.7MB

    Download