Analysis

  • max time kernel
    146s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/04/2024, 13:14

General

  • Target

    447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe

  • Size

    63KB

  • MD5

    c1ade258f05c512e98ebc4d9d1165f8a

  • SHA1

    acf20f6a7dc7841ae06f801b887289fdc99e0488

  • SHA256

    447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759

  • SHA512

    5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076

  • SSDEEP

    1536:SaKFoNbEkySYKumUYFOy5biAPY0JG4aRjnl7RUr+TG5x:SawoNbEkAKumUYFD5biF0JejxSsCx

Malware Config

Extracted

Family

asyncrat

Version

| Edit 3LOSH RAT

Botnet

Exodus_Market

C2

leetboy.dynuddns.net:1339

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    true

  • install_file

    svchos.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe
    "C:\Users\Admin\AppData\Local\Temp\447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3716
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchos" /tr '"C:\Users\Admin\AppData\Roaming\svchos.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4724
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "svchos" /tr '"C:\Users\Admin\AppData\Roaming\svchos.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:4464
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9AC9.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2600
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:5088
      • C:\Users\Admin\AppData\Roaming\svchos.exe
        "C:\Users\Admin\AppData\Roaming\svchos.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:3764
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4080 --field-trial-handle=2244,i,11986678581565715302,451159359636456336,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1036

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp9AC9.tmp.bat

      Filesize

      150B

      MD5

      6d28b4e459b79a10315874863a5b517e

      SHA1

      38633c677fa3cc4d57dca911181e2d59a3a09c81

      SHA256

      6176a1cd408f8273f51b37a99794f8ec16d60bc4f511af6547806d7389461282

      SHA512

      082bd169a74604ebd3abbc108321bbf8452835262d273e5c3565687e26f3c5ac2209128b14c8f7c30fce2c5ced21cf00b42b60a01d7708993b6ed402bde3e609

    • C:\Users\Admin\AppData\Roaming\svchos.exe

      Filesize

      63KB

      MD5

      c1ade258f05c512e98ebc4d9d1165f8a

      SHA1

      acf20f6a7dc7841ae06f801b887289fdc99e0488

      SHA256

      447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759

      SHA512

      5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076

    • memory/3716-3-0x0000000004CC0000-0x0000000004D5C000-memory.dmp

      Filesize

      624KB

    • memory/3716-0-0x00000000001E0000-0x00000000001F6000-memory.dmp

      Filesize

      88KB

    • memory/3716-8-0x0000000074720000-0x0000000074ED0000-memory.dmp

      Filesize

      7.7MB

    • memory/3716-2-0x00000000026A0000-0x00000000026B0000-memory.dmp

      Filesize

      64KB

    • memory/3716-1-0x0000000074720000-0x0000000074ED0000-memory.dmp

      Filesize

      7.7MB

    • memory/3764-13-0x0000000074680000-0x0000000074E30000-memory.dmp

      Filesize

      7.7MB

    • memory/3764-14-0x0000000004B70000-0x0000000004B80000-memory.dmp

      Filesize

      64KB

    • memory/3764-15-0x00000000054D0000-0x0000000005A74000-memory.dmp

      Filesize

      5.6MB

    • memory/3764-16-0x00000000050C0000-0x0000000005152000-memory.dmp

      Filesize

      584KB

    • memory/3764-17-0x00000000050B0000-0x00000000050BA000-memory.dmp

      Filesize

      40KB

    • memory/3764-18-0x0000000074680000-0x0000000074E30000-memory.dmp

      Filesize

      7.7MB

    • memory/3764-19-0x0000000004B70000-0x0000000004B80000-memory.dmp

      Filesize

      64KB