Analysis

  • max time kernel
    1797s
  • max time network
    1801s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241023-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    18-11-2024 01:09

General

  • Target

    Infected.exe

  • Size

    63KB

  • MD5

    daacc4b40206c4d5e7260dde1a2f6814

  • SHA1

    7f8baeba108d745c44ee23b4a56c58d5893d2889

  • SHA256

    eb3e3b70ceb124de827b5297c2b8e0b42f84ca8bcd71015a9ce9d7aa5a581a43

  • SHA512

    3afd3cbe4ae7e9e500037a1643ba04430687a602d6a4b7ccb9c12e8b350b29fcb37251b9cb9af4528f92719b6ae4391aea5f58aa505dfd6818b9e0cb036dcf64

  • SSDEEP

    768:iqWcYBjjj78ZIC8A+X0iazcBRL5JTk1+T4KSBGHmDbD/ph0oXTOsySuwdpqKYhY7:MZjLXdSJYUbdh9TluwdpqKmY7

Score
10/10

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

147.185.221.23:45700

Attributes
  • delay

    1

  • install

    true

  • install_file

    urmom.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • 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).

  • Delays execution with timeout.exe 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 21 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Infected.exe
    "C:\Users\Admin\AppData\Local\Temp\Infected.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1164
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "urmom" /tr '"C:\Users\Admin\AppData\Roaming\urmom.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:116
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "urmom" /tr '"C:\Users\Admin\AppData\Roaming\urmom.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4380
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8482.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4600
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:3956
      • C:\Users\Admin\AppData\Roaming\urmom.exe
        "C:\Users\Admin\AppData\Roaming\urmom.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1760

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp8482.tmp.bat

    Filesize

    149B

    MD5

    f68d4d174082c3b689e091e04bbdfc88

    SHA1

    66c130bab4373b229b96e2e4f81ad6e5a62c8cf3

    SHA256

    2b2d3b6bc44c7133b2538a060c4122c14d28a11f1dbd981cfa0fe85affa7decf

    SHA512

    056145a59e52992557c0adaafbb0ffc66e1759122e4ab3230659de055b7743f82105497b050261d5331c9a56e1b29d142da4a056892c06229d703a3aa5dd412f

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

    Filesize

    63KB

    MD5

    daacc4b40206c4d5e7260dde1a2f6814

    SHA1

    7f8baeba108d745c44ee23b4a56c58d5893d2889

    SHA256

    eb3e3b70ceb124de827b5297c2b8e0b42f84ca8bcd71015a9ce9d7aa5a581a43

    SHA512

    3afd3cbe4ae7e9e500037a1643ba04430687a602d6a4b7ccb9c12e8b350b29fcb37251b9cb9af4528f92719b6ae4391aea5f58aa505dfd6818b9e0cb036dcf64

  • memory/1164-0-0x00007FFCFF753000-0x00007FFCFF755000-memory.dmp

    Filesize

    8KB

  • memory/1164-1-0x0000000000B80000-0x0000000000B96000-memory.dmp

    Filesize

    88KB

  • memory/1164-2-0x00007FFCFF750000-0x00007FFD00212000-memory.dmp

    Filesize

    10.8MB

  • memory/1164-3-0x00007FFCFF750000-0x00007FFD00212000-memory.dmp

    Filesize

    10.8MB

  • memory/1164-8-0x00007FFCFF750000-0x00007FFD00212000-memory.dmp

    Filesize

    10.8MB