Overview

overview

10

Static

static

10

b876529297...65.exe

windows7-x64

10

b876529297...65.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    38s
  • max time network
    57s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/03/2025, 19:59

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    b876529297c2bdf41a81d9d11bf4755257e69db50ed756b80792896cab59a565.exe

  • Size

    45KB

  • MD5

    6d4e11b968c8b8bcb58c5d18fdbec947

  • SHA1

    70806a98131536c7b910139115697fccb7ee35ab

  • SHA256

    b876529297c2bdf41a81d9d11bf4755257e69db50ed756b80792896cab59a565

  • SHA512

    43696ceb0285657281fd34ee78fdef13226b8ab6218592eb0488f68bbfd82e91734d5254a54ee8148ac7a0d1839f3072c11295d0ae839151b03fd25efc835f05

  • SSDEEP

    768:nugPNTjgkH7F7WUHw9pmo2q7deeXKOZTN8/nPI6EzjbZgX3i7yAcsyi21cYBDZKx:nugPNTcI42Te3TNKA6E3b2XS7yZiscea

Score
10/10
asyncratdefaultdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

192.168.43.113:6606

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    true

  • install_file

    TOOL.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).

  • 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
    defense_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\b876529297c2bdf41a81d9d11bf4755257e69db50ed756b80792896cab59a565.exe
    "C:\Users\Admin\AppData\Local\Temp\b876529297c2bdf41a81d9d11bf4755257e69db50ed756b80792896cab59a565.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5156
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "TOOL" /tr '"C:\Users\Admin\AppData\Roaming\TOOL.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4116
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "TOOL" /tr '"C:\Users\Admin\AppData\Roaming\TOOL.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4956
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7DAC.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4880
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4532
      • C:\Users\Admin\AppData\Roaming\TOOL.exe
        "C:\Users\Admin\AppData\Roaming\TOOL.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4688

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp7DAC.tmp.bat
    Filesize

    148B

    MD5

    353444fd9187e0cabdf174c193d5900b

    SHA1

    373f7be2c937d5e50f0d13f3ed3e647b0b417879

    SHA256

    bc926f7db69cc1814a554e7d47407f6fd3dce39f46e77449a8ce1dbc002ba9ff

    SHA512

    309944ed649d927accd4393cb8d01b15e0a24516c97148b49ee181cf76ca6d0fdcb4ca5f20402f646a6b0611726369b33c7ae2f1db00cf19c8ea5258012c8a65

    Download Submit

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

    45KB

    MD5

    6d4e11b968c8b8bcb58c5d18fdbec947

    SHA1

    70806a98131536c7b910139115697fccb7ee35ab

    SHA256

    b876529297c2bdf41a81d9d11bf4755257e69db50ed756b80792896cab59a565

    SHA512

    43696ceb0285657281fd34ee78fdef13226b8ab6218592eb0488f68bbfd82e91734d5254a54ee8148ac7a0d1839f3072c11295d0ae839151b03fd25efc835f05

    Download Submit

  • memory/4688-13-0x0000000074F90000-0x0000000075740000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4688-14-0x0000000074F90000-0x0000000075740000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/5156-0-0x000000007502E000-0x000000007502F000-memory.dmp

    Filesize

    4KB

    Download

  • memory/5156-1-0x0000000000430000-0x0000000000442000-memory.dmp

    Filesize

    72KB

    Download

  • memory/5156-2-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/5156-3-0x0000000004E20000-0x0000000004EBC000-memory.dmp

    Filesize

    624KB

    Download

  • memory/5156-8-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

    Download