Overview

overview

10

Static

static

10

4476d0eb2a...67.exe

windows7-x64

10

4476d0eb2a...67.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    137s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-08-2024 01:34

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General

  • Target

    4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67.exe

  • Size

    63KB

  • MD5

    1b8eea1226cd913da97c0c0b8a806b18

  • SHA1

    4320bde806e4fb5792be6bfb2e0b45ae30033fa0

  • SHA256

    4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67

  • SHA512

    70fca344d74efe3e1bf9268e36bd2aac698e69cde340559f5a0df603bf996d06f6b60920cf02ecf19c8532f6a6d6210a4c9ad54a61ddbf12541ae0cfee3da7f1

  • SSDEEP

    1536:zZgPH9F4s1THE6HTIiTEulumGbb+wAe+EhGG0kpqKmY7:zZgPH9F4sBHLTIiTnGbb+xmuvz

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

1.2

Botnet

Default

C2

stores-less.gl.at.ply.gg:45080

Mutex

AtomRatMutex_penka

Attributes
  • delay

    1

  • install

    true

  • install_file

    piskat.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\4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67.exe
    "C:\Users\Admin\AppData\Local\Temp\4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2224
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "piskat" /tr '"C:\Users\Admin\AppData\Roaming\piskat.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1344
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "piskat" /tr '"C:\Users\Admin\AppData\Roaming\piskat.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3440
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9819.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1232
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:1484
      • C:\Users\Admin\AppData\Roaming\piskat.exe
        "C:\Users\Admin\AppData\Roaming\piskat.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1964

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp9819.tmp.bat
    Filesize

    150B

    MD5

    20d1998c99e9b1f5d0d54a65819b2ad6

    SHA1

    ab2207aa5f14c5c6363d2c6247f491998fc01532

    SHA256

    17ca7664d618179f1200fdfb0260b63c7f6b5f96d89b200ed02a02118cac3226

    SHA512

    56b4f3f2db975c02313f0d0f8e1577ec757121c143e41f66fc9ec878090ef0e428090123eff444b90a8c78c401fc108b56af9a37ed98d33db6fcff9235bd6983

    Download Submit

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

    63KB

    MD5

    1b8eea1226cd913da97c0c0b8a806b18

    SHA1

    4320bde806e4fb5792be6bfb2e0b45ae30033fa0

    SHA256

    4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67

    SHA512

    70fca344d74efe3e1bf9268e36bd2aac698e69cde340559f5a0df603bf996d06f6b60920cf02ecf19c8532f6a6d6210a4c9ad54a61ddbf12541ae0cfee3da7f1

    Download Submit

  • memory/2224-0-0x00007FFB338F3000-0x00007FFB338F5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/2224-1-0x000001D069780000-0x000001D069796000-memory.dmp

    Filesize

    88KB

    Download

  • memory/2224-2-0x00007FFB338F0000-0x00007FFB343B1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/2224-7-0x00007FFB338F0000-0x00007FFB343B1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/2224-12-0x00007FFB338F0000-0x00007FFB343B1000-memory.dmp

    Filesize

    10.8MB

    Download