Overview

overview

10

Static

static

10

3a4dc784a9...82.exe

windows7-x64

10

3a4dc784a9...82.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    293s
  • max time network
    297s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/01/2025, 04:17

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General

  • Target

    3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82.exe

  • Size

    63KB

  • MD5

    a587ed228c608a71f06edbc8e8e087e9

  • SHA1

    e9e4b0d19b8139a6b8bb63ddee6422ba63648824

  • SHA256

    3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82

  • SHA512

    b76ff1c062d4e1fd9b217661204b82a3898bfbe9ea2b4287e8e5aa28c1ca19f913f1d2c390d5dff1051dae9e6b2f5bf2c2a7886e1f112f00c25619c11c16529e

  • SSDEEP

    768:cILZTnPRs78HIC8A+XnJkUeXIkhuuAi1+T4bSBGHmDbDCph0oiHJ7oHQSu8dpqKX:pRRQZbgpkYUbshIHJoXu8dpqKmY7

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

147.185.221.24:18545

Attributes
  • delay

    1

  • install

    true

  • install_file

    xrat.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\3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82.exe
    "C:\Users\Admin\AppData\Local\Temp\3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1188
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "xrat" /tr '"C:\Users\Admin\AppData\Roaming\xrat.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3668
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "xrat" /tr '"C:\Users\Admin\AppData\Roaming\xrat.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:312
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9D1B.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3500
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:1104
      • C:\Users\Admin\AppData\Roaming\xrat.exe
        "C:\Users\Admin\AppData\Roaming\xrat.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:388

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp9D1B.tmp.bat
    Filesize

    148B

    MD5

    e39df0a6f43bd8996264d30b18f7c3e3

    SHA1

    ef612bc78d99c9e8c216d264a355fd9874c1deec

    SHA256

    6017b13ce25a1393902eb1a928bc993f6a1445c20335e5dbc9714b1f50f8057b

    SHA512

    4408befcb5cd17d46c8f4262a44f18a17114f3ace9fa015e3b0c8a88473ebd2cf3667a4e8e723ebaeab58a8386bed52fe26082a4ef118845bf538b4c30a1b27d

    Download Submit

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

    63KB

    MD5

    a587ed228c608a71f06edbc8e8e087e9

    SHA1

    e9e4b0d19b8139a6b8bb63ddee6422ba63648824

    SHA256

    3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82

    SHA512

    b76ff1c062d4e1fd9b217661204b82a3898bfbe9ea2b4287e8e5aa28c1ca19f913f1d2c390d5dff1051dae9e6b2f5bf2c2a7886e1f112f00c25619c11c16529e

    Download Submit

  • memory/1188-0-0x00007FFF61233000-0x00007FFF61235000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1188-1-0x0000000000BA0000-0x0000000000BB6000-memory.dmp

    Filesize

    88KB

    Download

  • memory/1188-2-0x00007FFF61230000-0x00007FFF61CF1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1188-3-0x00007FFF61230000-0x00007FFF61CF1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1188-8-0x00007FFF61230000-0x00007FFF61CF1000-memory.dmp

    Filesize

    10.8MB

    Download