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Overview

overview

10

Static

static

10

4cf4e246ae...d9.exe

windows7-x64

10

4cf4e246ae...d9.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    144s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/07/2023, 01:32

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General

  • Target

    4cf4e246ae9989b51e64b0fc1c8ca7d9.exe

  • Size

    47KB

  • MD5

    4cf4e246ae9989b51e64b0fc1c8ca7d9

  • SHA1

    9f52c14c854fa3300f8d184add69310f779c5755

  • SHA256

    a17c7a643a56452209e4693b977b84b0265efc2f522b068046868a3f832313be

  • SHA512

    f7facedb94ef8420bafec8f78df9e50275923f1f95e66a1cc1bef733b103a41f4c7588d770b6a9a78bb7c34e429d66609573f6dc3b25f84129a390ac2420236f

  • SSDEEP

    768:2uQ/ltTxQ58sWUyOC2mo2q8EUKbj4MiPPI1Ov8Xv0b0PlysRJqxinOoY10gkmBD0:2uQ/ltTxib24dp1A88b0hRJ8inO/1Uow

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

default

C2

127.0.0.1:4824

127.0.0.1:13577

4040:4824

4040:13577
Mutex

Discord Inc

Attributes
  • delay

    3

  • install

    true

  • install_file

    aratnotamouse.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

    ratasyncrat
  • Async RAT payload 3 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

    persistence
  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4cf4e246ae9989b51e64b0fc1c8ca7d9.exe
    "C:\Users\Admin\AppData\Local\Temp\4cf4e246ae9989b51e64b0fc1c8ca7d9.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4988
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "aratnotamouse" /tr '"C:\Users\Admin\AppData\Roaming\aratnotamouse.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4220
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "aratnotamouse" /tr '"C:\Users\Admin\AppData\Roaming\aratnotamouse.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:4540
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpD61C.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2544
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2812
      • C:\Users\Admin\AppData\Roaming\aratnotamouse.exe
        "C:\Users\Admin\AppData\Roaming\aratnotamouse.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2392

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD61C.tmp.bat
    Filesize

    157B

    MD5

    415ccbb543870790a3d16ba448c07d3d

    SHA1

    5dbf21c3f7b92e73bc36c5ff348d77dc8202e78c

    SHA256

    0e3fc133dd383596b71fde4dad4814822ab47a13c0ee98c801b6a4666432a035

    SHA512

    d6fd542cf12715997c2fc16e5acfc838476c8d38c812e6c41c3567606a76644dfe9e1e9cb7d090994ce15e5613a735348533659213e17dd588069c4e692a2454

    Download Submit

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

    47KB

    MD5

    4cf4e246ae9989b51e64b0fc1c8ca7d9

    SHA1

    9f52c14c854fa3300f8d184add69310f779c5755

    SHA256

    a17c7a643a56452209e4693b977b84b0265efc2f522b068046868a3f832313be

    SHA512

    f7facedb94ef8420bafec8f78df9e50275923f1f95e66a1cc1bef733b103a41f4c7588d770b6a9a78bb7c34e429d66609573f6dc3b25f84129a390ac2420236f

    Download Submit

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

    47KB

    MD5

    4cf4e246ae9989b51e64b0fc1c8ca7d9

    SHA1

    9f52c14c854fa3300f8d184add69310f779c5755

    SHA256

    a17c7a643a56452209e4693b977b84b0265efc2f522b068046868a3f832313be

    SHA512

    f7facedb94ef8420bafec8f78df9e50275923f1f95e66a1cc1bef733b103a41f4c7588d770b6a9a78bb7c34e429d66609573f6dc3b25f84129a390ac2420236f

    Download Submit

  • memory/2392-150-0x0000000004E90000-0x0000000004EA0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2392-149-0x0000000075290000-0x0000000075A40000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/2392-148-0x0000000004E90000-0x0000000004EA0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2392-147-0x0000000075290000-0x0000000075A40000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4988-136-0x0000000005250000-0x00000000052B6000-memory.dmp

    Filesize

    408KB

    Download

  • memory/4988-143-0x0000000075330000-0x0000000075AE0000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4988-137-0x00000000056E0000-0x000000000577C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/4988-133-0x00000000007A0000-0x00000000007B2000-memory.dmp

    Filesize

    72KB

    Download

  • memory/4988-135-0x00000000051D0000-0x00000000051E0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/4988-134-0x0000000075330000-0x0000000075AE0000-memory.dmp

    Filesize

    7.7MB

    Download