Overview

overview

10

Static

static

10

d79a753df9...50.exe

windows7-x64

10

d79a753df9...50.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-08-2024 03:11

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General

  • Target

    d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50.exe

  • Size

    63KB

  • MD5

    8b8cab1d331fe91ec63e79425bf6b38c

  • SHA1

    d03b90745e665b12cc6ab8b2e161ae1d4dddd568

  • SHA256

    d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50

  • SHA512

    9f579445f26f62ca0921090202cfca6bfd2aa168a4a99452638c324e158648a0b5974854e6365956be62fa3db73be789fed6818d415cea4e81ddf57ae014c5ac

  • SSDEEP

    768:8kP9PXn1w787gC8A+XvtaZ/e9IDjELtF1+T4oSBGHmDbDvph0oX/56tDtl6wwSuW:BR1gElfjsrrYUbFh9Q2w3uwdpqKmY7

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

147.185.221.21:33927

Attributes
  • delay

    1

  • install

    true

  • install_file

    Update.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 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 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 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\d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50.exe
    "C:\Users\Admin\AppData\Local\Temp\d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4420
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Update" /tr '"C:\Users\Admin\AppData\Roaming\Update.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2064
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Update" /tr '"C:\Users\Admin\AppData\Roaming\Update.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:652
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp97AC.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3304
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4016
      • C:\Users\Admin\AppData\Roaming\Update.exe
        "C:\Users\Admin\AppData\Roaming\Update.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:552

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp97AC.tmp.bat
    Filesize

    150B

    MD5

    5ff6f77cf4fa96027b9cf37c936e50b6

    SHA1

    2ffe8abb75275d9ac7babf58fcb0095b4e66893d

    SHA256

    771fc2ad4e4805050226feebe5ab29a2edfa254f4a881bd964e4a2967c5c9007

    SHA512

    898b3e7d97ab35817e244d3136e22931154b883c131fcf2875cef3b65f6f327efcebc40811b36b0e658a37bb9cc6756b079b361234bb95e585c5cf382ae3ab90

    Download Submit

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

    63KB

    MD5

    8b8cab1d331fe91ec63e79425bf6b38c

    SHA1

    d03b90745e665b12cc6ab8b2e161ae1d4dddd568

    SHA256

    d79a753df9a8244cfff9d68f100fdc809ef0459a9865f8e3b62f42b2c4afee50

    SHA512

    9f579445f26f62ca0921090202cfca6bfd2aa168a4a99452638c324e158648a0b5974854e6365956be62fa3db73be789fed6818d415cea4e81ddf57ae014c5ac

    Download Submit

  • memory/4420-0-0x00000000005B0000-0x00000000005C6000-memory.dmp

    Filesize

    88KB

    Download

  • memory/4420-1-0x00007FF9479F3000-0x00007FF9479F5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/4420-2-0x00007FF9479F0000-0x00007FF9484B1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4420-7-0x00007FF9479F0000-0x00007FF9484B1000-memory.dmp

    Filesize

    10.8MB

    Download