Overview

overview

10

Static

static

10

d59fcfd1f5...bf.exe

windows7-x64

10

d59fcfd1f5...bf.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    93s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-01-2025 03:38

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General

  • Target

    d59fcfd1f5fd871873d3f2d4de2c938825d8e49c7357da078cd7f4a3e42239bf.exe

  • Size

    76KB

  • MD5

    7c41073a0f6d04187987594fe990242d

  • SHA1

    8edb4897e61ff19c8fb1603b2713fb544ba97154

  • SHA256

    d59fcfd1f5fd871873d3f2d4de2c938825d8e49c7357da078cd7f4a3e42239bf

  • SHA512

    fa219e7ab70d78336c737cc16be57c4afbfde281f955eece644a13f27f860212323b2a8738c014bb4dc53ea85324e501f0c4b1dc56c8be4c3e980f87d694aeda

  • SSDEEP

    1536:FuEYVTn8H2EMZGtUbbjXSVmw9gptdcjyGBvI+:FuE0Tn8H29kUbbjqytujyGt1

Score
10/10
asyncratdefaultdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

213.142.159.59:1605

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    true

  • install_file

    Windows Command Processor.exe

  • install_folder

    %Temp%

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).

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • 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 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d59fcfd1f5fd871873d3f2d4de2c938825d8e49c7357da078cd7f4a3e42239bf.exe
    "C:\Users\Admin\AppData\Local\Temp\d59fcfd1f5fd871873d3f2d4de2c938825d8e49c7357da078cd7f4a3e42239bf.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Windows Command Processor" /tr '"C:\Users\Admin\AppData\Local\Temp\Windows Command Processor.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4092
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Windows Command Processor" /tr '"C:\Users\Admin\AppData\Local\Temp\Windows Command Processor.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4700
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpAC9B.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3348
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2084
      • C:\Users\Admin\AppData\Local\Temp\Windows Command Processor.exe
        "C:\Users\Admin\AppData\Local\Temp\Windows Command Processor.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2152

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Windows Command Processor.exe
    Filesize

    76KB

    MD5

    7c41073a0f6d04187987594fe990242d

    SHA1

    8edb4897e61ff19c8fb1603b2713fb544ba97154

    SHA256

    d59fcfd1f5fd871873d3f2d4de2c938825d8e49c7357da078cd7f4a3e42239bf

    SHA512

    fa219e7ab70d78336c737cc16be57c4afbfde281f955eece644a13f27f860212323b2a8738c014bb4dc53ea85324e501f0c4b1dc56c8be4c3e980f87d694aeda

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\tmpAC9B.tmp.bat
    Filesize

    172B

    MD5

    a581a174b35ea300efcf45cc6f63bff7

    SHA1

    54bd1f6766f32fc2a77d19146d1a31c0b72c847c

    SHA256

    c923c5bce75ec37434e5b1f92dd5d3a176c38b81be0e46364ff13ac2cfa81b6e

    SHA512

    fa353be493aeb6c2e572030d453a88b7b1eb05c36f8c3b9d6558d63e919015d39127bbb680e3cb05263387c32e5820b0a96c60aca0b47b1274a3db55454ccdd2

    Download Submit

  • memory/1908-0-0x000000007516E000-0x000000007516F000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1908-1-0x0000000000FF0000-0x000000000100A000-memory.dmp

    Filesize

    104KB

    Download

  • memory/1908-2-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/1908-3-0x0000000005A20000-0x0000000005ABC000-memory.dmp

    Filesize

    624KB

    Download

  • memory/1908-8-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/2152-13-0x00000000750B0000-0x0000000075860000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/2152-16-0x00000000062E0000-0x0000000006884000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/2152-17-0x0000000005E00000-0x0000000005E66000-memory.dmp

    Filesize

    408KB

    Download

  • memory/2152-18-0x00000000750B0000-0x0000000075860000-memory.dmp

    Filesize

    7.7MB

    Download