Analysis

  • max time kernel
    145s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    21-07-2023 20:59

General

  • Target

    aratnotamouse.exe

  • Size

    47KB

  • MD5

    4cf4e246ae9989b51e64b0fc1c8ca7d9

  • SHA1

    9f52c14c854fa3300f8d184add69310f779c5755

  • SHA256

    a17c7a643a56452209e4693b977b84b0265efc2f522b068046868a3f832313be

  • SHA512

    f7facedb94ef8420bafec8f78df9e50275923f1f95e66a1cc1bef733b103a41f4c7588d770b6a9a78bb7c34e429d66609573f6dc3b25f84129a390ac2420236f

  • SSDEEP

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

Score
10/10

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#.

  • Async RAT payload 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aratnotamouse.exe
    "C:\Users\Admin\AppData\Local\Temp\aratnotamouse.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2972
    • 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:2492
      • 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:2860
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp9702.tmp.bat""
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2576
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2944
      • C:\Users\Admin\AppData\Roaming\aratnotamouse.exe
        "C:\Users\Admin\AppData\Roaming\aratnotamouse.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1724

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp9702.tmp.bat

    Filesize

    157B

    MD5

    593760efbde4dd61db938ebc52801841

    SHA1

    6981918a2a6403de3e5f8d9b8dd13a0b0d005688

    SHA256

    edf14af7bdd2c2a4dfc536db3cc5cb2d11c188689de1aa4be18e91937c73c529

    SHA512

    e10dd72348b80a8362717592c36971257171b7a95e66bc6c314a76e79a6ea0bcc1968c5a996a087b11dabd4a5fbb610f2851a8da8d5ebcf83d2207497e7b837f

  • C:\Users\Admin\AppData\Local\Temp\tmp9702.tmp.bat

    Filesize

    157B

    MD5

    593760efbde4dd61db938ebc52801841

    SHA1

    6981918a2a6403de3e5f8d9b8dd13a0b0d005688

    SHA256

    edf14af7bdd2c2a4dfc536db3cc5cb2d11c188689de1aa4be18e91937c73c529

    SHA512

    e10dd72348b80a8362717592c36971257171b7a95e66bc6c314a76e79a6ea0bcc1968c5a996a087b11dabd4a5fbb610f2851a8da8d5ebcf83d2207497e7b837f

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

    Filesize

    47KB

    MD5

    4cf4e246ae9989b51e64b0fc1c8ca7d9

    SHA1

    9f52c14c854fa3300f8d184add69310f779c5755

    SHA256

    a17c7a643a56452209e4693b977b84b0265efc2f522b068046868a3f832313be

    SHA512

    f7facedb94ef8420bafec8f78df9e50275923f1f95e66a1cc1bef733b103a41f4c7588d770b6a9a78bb7c34e429d66609573f6dc3b25f84129a390ac2420236f

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

    Filesize

    47KB

    MD5

    4cf4e246ae9989b51e64b0fc1c8ca7d9

    SHA1

    9f52c14c854fa3300f8d184add69310f779c5755

    SHA256

    a17c7a643a56452209e4693b977b84b0265efc2f522b068046868a3f832313be

    SHA512

    f7facedb94ef8420bafec8f78df9e50275923f1f95e66a1cc1bef733b103a41f4c7588d770b6a9a78bb7c34e429d66609573f6dc3b25f84129a390ac2420236f

  • \Users\Admin\AppData\Roaming\aratnotamouse.exe

    Filesize

    47KB

    MD5

    4cf4e246ae9989b51e64b0fc1c8ca7d9

    SHA1

    9f52c14c854fa3300f8d184add69310f779c5755

    SHA256

    a17c7a643a56452209e4693b977b84b0265efc2f522b068046868a3f832313be

    SHA512

    f7facedb94ef8420bafec8f78df9e50275923f1f95e66a1cc1bef733b103a41f4c7588d770b6a9a78bb7c34e429d66609573f6dc3b25f84129a390ac2420236f

  • memory/1724-71-0x0000000073F50000-0x000000007463E000-memory.dmp

    Filesize

    6.9MB

  • memory/1724-70-0x00000000008F0000-0x0000000000902000-memory.dmp

    Filesize

    72KB

  • memory/1724-72-0x0000000000600000-0x0000000000640000-memory.dmp

    Filesize

    256KB

  • memory/1724-73-0x0000000073F50000-0x000000007463E000-memory.dmp

    Filesize

    6.9MB

  • memory/2972-65-0x0000000073F90000-0x000000007467E000-memory.dmp

    Filesize

    6.9MB

  • memory/2972-54-0x0000000000880000-0x0000000000892000-memory.dmp

    Filesize

    72KB

  • memory/2972-56-0x00000000047A0000-0x00000000047E0000-memory.dmp

    Filesize

    256KB

  • memory/2972-55-0x0000000073F90000-0x000000007467E000-memory.dmp

    Filesize

    6.9MB