Overview

overview

10

Static

static

10

Client.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    71s
  • max time network
    63s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-12-2024 17:27

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General

  • Target

    Client.exe

  • Size

    48KB

  • MD5

    44d5a1bc0e71ec156b541be860ef9c09

  • SHA1

    1e89133ce94f3c59e38ed7b27db874b1e2cb3ef2

  • SHA256

    635540183ad0c6215eca493fd500c32e9bfa01efa7b0efb389cd40fd0db62482

  • SHA512

    c780f6f38b28c42241c7dfee874ac0eab3d7dc493f240bc0e748e75d7e6e830449d70057179a36db1b8af69dc274e9c1b512b430ef1d549329b6eae6e91f8419

  • SSDEEP

    768:mMRJZBILLWQ9+jiwtelDSN+iV08YbygeUfdJLKoYwvEgK/JbZVc6KN:mMRq9wtKDs4zb1vlKo1nkJbZVclN

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

127.0.0.1:8848

127.0.0.1:40721

Binky812-40721.portmap.host:8848

Binky812-40721.portmap.host:40721
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 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\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:1216
    • 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:4652
      • 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:1304
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6496.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:980
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2316
      • C:\Users\Admin\AppData\Roaming\MinecraftUpdater.exe
        "C:\Users\Admin\AppData\Roaming\MinecraftUpdater.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4956

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp6496.tmp.bat
    Filesize

    160B

    MD5

    859fc01666e1895be1d9f240eab51038

    SHA1

    8736ffd1bf66b58b96e01631f5c26dfa726e91f0

    SHA256

    4e866ba6b93eeb648b3c03c0a296d87934ec31ae8ff680c84e1bd16aaa15021c

    SHA512

    d51176460105930b749c80e099e1bcb9111edc2fbac0c116309c9ab1cbc46fad46193b13d1d12a4f97015391d213cf0a25025cd01c052765412d713ebfcf0676

    Download Submit

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

    48KB

    MD5

    44d5a1bc0e71ec156b541be860ef9c09

    SHA1

    1e89133ce94f3c59e38ed7b27db874b1e2cb3ef2

    SHA256

    635540183ad0c6215eca493fd500c32e9bfa01efa7b0efb389cd40fd0db62482

    SHA512

    c780f6f38b28c42241c7dfee874ac0eab3d7dc493f240bc0e748e75d7e6e830449d70057179a36db1b8af69dc274e9c1b512b430ef1d549329b6eae6e91f8419

    Download Submit

  • memory/1216-0-0x0000000000FD0000-0x0000000000FE2000-memory.dmp

    Filesize

    72KB

    Download

  • memory/1216-1-0x00007FFB67ED3000-0x00007FFB67ED5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1216-2-0x00007FFB67ED0000-0x00007FFB68991000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1216-7-0x00007FFB67ED0000-0x00007FFB68991000-memory.dmp

    Filesize

    10.8MB

    Download