Overview

overview

10

Static

static

10

runtime.exe

windows7-x64

10

runtime.exe

windows10-2004-x64

10

win5.exe

windows7-x64

7

win5.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-06-2024 18:50

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General

  • Target

    runtime.exe

  • Size

    73KB

  • MD5

    4fa7b1eec1fc84eb3a13c29e5a37aae7

  • SHA1

    dfff9fceeb4d74d7e82f9f0a65d1889fa0f9e326

  • SHA256

    5f5aa560b9b2d9f7ea3b9a4e05b9b9b35107dc78bd763000fe05f6b3f998f311

  • SHA512

    5e36a5589499a3db56d78de1b66a9ee57a2972bc57bf4b915df9118fd2a584c74ba00c61531d922431b72e87f9c53585c4c1a78a2aba122a22ea5e3603aa06ba

  • SSDEEP

    1536:KIUme0cxdlOH4PAI7Bn3h36rAi8EjZUPMwC/eqmmRhdWVH1bfbfPmjmwzUYbVclN:KIUm3cxdlOH4YI7Bn3h36rAi8EVUPMwv

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.2

Botnet

Default

C2

72.5.43.15:4449

Mutex

yezcydjwbxouz

Attributes
  • delay

    1

  • install

    true

  • install_file

    win.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 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 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\runtime.exe
    "C:\Users\Admin\AppData\Local\Temp\runtime.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2288
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "win" /tr '"C:\Users\Admin\AppData\Roaming\win.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1220
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "win" /tr '"C:\Users\Admin\AppData\Roaming\win.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4024
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4C99.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2448
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4648
      • C:\Users\Admin\AppData\Roaming\win.exe
        "C:\Users\Admin\AppData\Roaming\win.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:772

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4C99.tmp.bat
    Filesize

    147B

    MD5

    3a6081c814f6222373fa753468472aac

    SHA1

    dd43cfb66443c43c2975a07d9324420f2640e31d

    SHA256

    e45e6e936ce82eb39170359acc7fc057c5550b9409f3f82ba110f82798a9bfa6

    SHA512

    a30ede459a607742617836fac3297008119c06af23feb818e12d21f91b0ff17506b689a015257275fdddad09d6df51040e0dfb8932b49f495de969753ebc6951

    Download Submit
  • C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
    Filesize

    8B

    MD5

    cf759e4c5f14fe3eec41b87ed756cea8

    SHA1

    c27c796bb3c2fac929359563676f4ba1ffada1f5

    SHA256

    c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

    SHA512

    c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

    Download Submit
  • C:\Users\Admin\AppData\Roaming\win.exe
    Filesize

    73KB

    MD5

    4fa7b1eec1fc84eb3a13c29e5a37aae7

    SHA1

    dfff9fceeb4d74d7e82f9f0a65d1889fa0f9e326

    SHA256

    5f5aa560b9b2d9f7ea3b9a4e05b9b9b35107dc78bd763000fe05f6b3f998f311

    SHA512

    5e36a5589499a3db56d78de1b66a9ee57a2972bc57bf4b915df9118fd2a584c74ba00c61531d922431b72e87f9c53585c4c1a78a2aba122a22ea5e3603aa06ba

    Download Submit
  • memory/2288-0-0x00007FFDE63E3000-0x00007FFDE63E5000-memory.dmp
    Filesize

    8KB

    Download
  • memory/2288-1-0x0000000000810000-0x0000000000828000-memory.dmp
    Filesize

    96KB

    Download
  • memory/2288-3-0x00007FFDE63E0000-0x00007FFDE6EA1000-memory.dmp
    Filesize

    10.8MB

    Download
  • memory/2288-8-0x00007FFDE63E0000-0x00007FFDE6EA1000-memory.dmp
    Filesize

    10.8MB

    Download