Overview

overview

10

Static

static

10

Client.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-12-2024 01:29

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General

  • Target

    Client.exe

  • Size

    63KB

  • MD5

    cb6a1f003f6937e3275c90bf3d8e7408

  • SHA1

    922efe4440e8d9966e7f47294b3ff9882c325a55

  • SHA256

    430407cd2dc4ffbdf3423a871caaf431984ee6dc2475bcff64c506919a1e28a0

  • SHA512

    3c57b39be6378036d4a5de80aa35139c34965b76ce35b4d22e25f59202d0f5b2665ad9f35e77b47b423060cd00e0c78c20456a99054d705f008fef3cec9c92ea

  • SSDEEP

    1536:ihgjnR1Aio/cxbDc4m7nVeeiMl8GbbXwRnb+GpZVclN:ihgjnR1Aio/cxbDcnnoeFmGbbXQnbrzY

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

127.0.0.1:8848

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    true

  • install_file

    MinecraftUpdater.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 23 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\Client.exe
    "C:\Users\Admin\AppData\Local\Temp\Client.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3352
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "MinecraftUpdater" /tr '"C:\Users\Admin\AppData\Roaming\MinecraftUpdater.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4500
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "MinecraftUpdater" /tr '"C:\Users\Admin\AppData\Roaming\MinecraftUpdater.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3656
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7724.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3124
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:3948
      • C:\Users\Admin\AppData\Roaming\MinecraftUpdater.exe
        "C:\Users\Admin\AppData\Roaming\MinecraftUpdater.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1972

Network

MITRE ATT&CK Enterprise v15

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp7724.tmp.bat
    Filesize

    160B

    MD5

    0c4d83c946ba83f3c770b3a1ae88996f

    SHA1

    566b9cdc609edef44975a41f6267bdc184e9d76f

    SHA256

    2aaff4d2fee78cdf949611d32f92a4ce3a6649ba7163a2f89fc004a1671ee214

    SHA512

    10ab08b50879ec8102a43831cd2244f7eadbb36f6d3ac1eeddbbe19ab5310c8bf68099835599457a9ae2d08f59b416d329bea171504641014c911b5e6fab8caa

    Download Submit

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

    63KB

    MD5

    cb6a1f003f6937e3275c90bf3d8e7408

    SHA1

    922efe4440e8d9966e7f47294b3ff9882c325a55

    SHA256

    430407cd2dc4ffbdf3423a871caaf431984ee6dc2475bcff64c506919a1e28a0

    SHA512

    3c57b39be6378036d4a5de80aa35139c34965b76ce35b4d22e25f59202d0f5b2665ad9f35e77b47b423060cd00e0c78c20456a99054d705f008fef3cec9c92ea

    Download Submit

  • memory/3352-0-0x00007FFCD9873000-0x00007FFCD9875000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3352-1-0x0000000000CE0000-0x0000000000CF6000-memory.dmp

    Filesize

    88KB

    Download

  • memory/3352-2-0x00007FFCD9870000-0x00007FFCDA331000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3352-7-0x00007FFCD9870000-0x00007FFCDA331000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3352-8-0x00007FFCD9870000-0x00007FFCDA331000-memory.dmp

    Filesize

    10.8MB

    Download