Overview

overview

10

Static

static

10

f8bcd12f0b...3f.exe

windows7-x64

10

f8bcd12f0b...3f.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-06-2024 12:08

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General

  • Target

    f8bcd12f0b30a378747069cc28aaae74d30aafc33656152ee34f818a10e8973f.exe

  • Size

    545KB

  • MD5

    9c17bdda52e21d8df835cee315b506dd

  • SHA1

    f01ccf02c4b92dc8e261da1e48f54ccd548c8af0

  • SHA256

    f8bcd12f0b30a378747069cc28aaae74d30aafc33656152ee34f818a10e8973f

  • SHA512

    7acd79e169949ef7445230ea474a38786cda317469be340fa94b83dcf26b0025b0baff45ff37c88c632ceaef6565a503d7f19d3884c467f8d68c28f86c3f9889

  • SSDEEP

    12288:BrMNAQs0dT4WxW+x4WrD5D4TIVz1OhZcsY:B4NAed3VJOHzY

Score
10/10
asyncratrat

Malware Config

Signatures

  • AsyncRat

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

    ratasyncrat
  • 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).

  • 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 4 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\f8bcd12f0b30a378747069cc28aaae74d30aafc33656152ee34f818a10e8973f.exe
    "C:\Users\Admin\AppData\Local\Temp\f8bcd12f0b30a378747069cc28aaae74d30aafc33656152ee34f818a10e8973f.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:540
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "$77-sachost" /tr '"C:\Users\Admin\AppData\Roaming\$77-sachost.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1752
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "$77-sachost" /tr '"C:\Users\Admin\AppData\Roaming\$77-sachost.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4628
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp51C9.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4040
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:3568
      • C:\Users\Admin\AppData\Roaming\$77-sachost.exe
        "C:\Users\Admin\AppData\Roaming\$77-sachost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:3328

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp51C9.tmp.bat
    Filesize

    155B

    MD5

    4b4ebe0e1cd31c44697b06e2caac535b

    SHA1

    dcaece0e604b0bb2e21f8db12e48ab6eb643336a

    SHA256

    3d6a35117bb02e27656a1eff7c9f76247d21733e60889ed0f3abf171afde543d

    SHA512

    9fad6065b2a63e77b5aad6ab92efee76bcd02cadbb25d0d05f00a5d06123126d71d14f41ecf9f036e985aa0249a86b90ce39bb047cedaa2d9d1cb2f57787539a

    Download Submit

  • C:\Users\Admin\AppData\Roaming\$77-sachost.exe
    Filesize

    545KB

    MD5

    9c17bdda52e21d8df835cee315b506dd

    SHA1

    f01ccf02c4b92dc8e261da1e48f54ccd548c8af0

    SHA256

    f8bcd12f0b30a378747069cc28aaae74d30aafc33656152ee34f818a10e8973f

    SHA512

    7acd79e169949ef7445230ea474a38786cda317469be340fa94b83dcf26b0025b0baff45ff37c88c632ceaef6565a503d7f19d3884c467f8d68c28f86c3f9889

    Download Submit

  • memory/540-0-0x0000000000370000-0x00000000003FE000-memory.dmp

    Filesize

    568KB

    Download

  • memory/540-1-0x00007FFA67CD0000-0x00007FFA67CF2000-memory.dmp

    Filesize

    136KB

    Download