Overview

overview

10

Static

static

10

Test.exe

windows10-ltsc 2021-x64

10

Test.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241023-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    20-11-2024 17:25

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General

  • Target

    Test.exe

  • Size

    4.0MB

  • MD5

    55603e2a16f0a6d517d63ec1552e45ed

  • SHA1

    2ebc5c1cbff5675f2c13f06e45e5039940107077

  • SHA256

    bbd2b2f19bef121ba2bff9bc1a40227e8114494b55165f3cbd8e53e59fc9daec

  • SHA512

    13475013baee647999c12ef8648492b7a841ed549582782ea45dccb0a5c4a05bcf3374374f1c72c5de8376741eb2ca5215f6d87a2802a4af49b56fd4cc2b7666

  • SSDEEP

    768:WtoQVuOPx178nkC8A+XICpeyr61urX1+T4uoSBGHmDbDzph0oX3ZErGSucdpqKYC:WVxXPn0tYUbph93ZEFucdpqKmY7

Score
10/10
asyncratvictimrat

Malware Config

Extracted

Family

asyncrat

Botnet

Victim

C2

193.161.193.99:36700

Attributes
  • delay

    1

  • install

    true

  • install_file

    sysvlrhp.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

    ratasyncrat
  • Asyncrat family
    asyncrat
  • 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 64 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\Test.exe
    "C:\Users\Admin\AppData\Local\Temp\Test.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4232
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "sysvlrhp" /tr '"C:\Users\Admin\AppData\Roaming\sysvlrhp.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4672
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "sysvlrhp" /tr '"C:\Users\Admin\AppData\Roaming\sysvlrhp.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4824
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8DD8.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4720
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:1244
      • C:\Users\Admin\AppData\Roaming\sysvlrhp.exe
        "C:\Users\Admin\AppData\Roaming\sysvlrhp.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4620

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp8DD8.tmp.bat
    Filesize

    152B

    MD5

    8f05d9cf4cf7372ee5e72822538216ab

    SHA1

    04d97e52a5c2111e677dba54e959f1658ba05beb

    SHA256

    54553c3f246d8614f4f9308e296ad080bc2d222afcad198394dfde63da4d2f82

    SHA512

    1a7ef7d16c5dcfb5598a735504dd0a2658d6faa5b0b14c2858725e495c94b5577d21b0dfccc95dc54d17d60882fb94df6a0c158f8574875e405397a1f605e58d

    Download Submit

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

    4.0MB

    MD5

    55603e2a16f0a6d517d63ec1552e45ed

    SHA1

    2ebc5c1cbff5675f2c13f06e45e5039940107077

    SHA256

    bbd2b2f19bef121ba2bff9bc1a40227e8114494b55165f3cbd8e53e59fc9daec

    SHA512

    13475013baee647999c12ef8648492b7a841ed549582782ea45dccb0a5c4a05bcf3374374f1c72c5de8376741eb2ca5215f6d87a2802a4af49b56fd4cc2b7666

    Download Submit

  • memory/4232-0-0x00007FFEEA413000-0x00007FFEEA415000-memory.dmp

    Filesize

    8KB

    Download

  • memory/4232-1-0x0000000000FE0000-0x0000000000FF6000-memory.dmp

    Filesize

    88KB

    Download

  • memory/4232-2-0x00007FFEEA410000-0x00007FFEEAED2000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4232-3-0x00007FFEEA410000-0x00007FFEEAED2000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4232-8-0x00007FFEEA410000-0x00007FFEEAED2000-memory.dmp

    Filesize

    10.8MB

    Download