Overview

overview

10

Static

static

10

0fbc9522be...82.exe

windows7-x64

10

0fbc9522be...82.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    102s
  • max time network
    156s
  • 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, 19:21

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General

  • Target

    0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe

  • Size

    48KB

  • MD5

    e48fe350eb0aeb4cedafd2c9ae689c96

  • SHA1

    d0fb07d47835b00d21d258dbcc0e673d1c1ae861

  • SHA256

    0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382

  • SHA512

    a9f5b762f7688ea06a72475beeb61b3bbc6d726122e470f6a6370c1c3c4fea4e85d5fc697843eb745ca5f079f0103a2500af9b669c886143d514631165c032b3

  • SSDEEP

    768:OuUjVTwkbBHWU72ZcFmo2qj7bYZC25vPIk9vOfk0bmu1mF8hS+0FO2eefEBDZJS7:OuUjVTwA4M2vZC+ok4fHbm2S8hS+UfyG

Score
10/10
asyncratdefaultdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

Mutex

9GqQYIlq5eZK

Attributes
  • delay

    3

  • install

    true

  • install_file

    CheckerAVT.exe

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/63vbbiAr

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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 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\0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe
    "C:\Users\Admin\AppData\Local\Temp\0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4364
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "CheckerAVT" /tr '"C:\Users\Admin\AppData\Roaming\CheckerAVT.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1104
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "CheckerAVT" /tr '"C:\Users\Admin\AppData\Roaming\CheckerAVT.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2464
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8194.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1308
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2524
      • C:\Users\Admin\AppData\Roaming\CheckerAVT.exe
        "C:\Users\Admin\AppData\Roaming\CheckerAVT.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:1252

Network

MITRE ATT&CK Enterprise v15

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp8194.tmp.bat
    Filesize

    154B

    MD5

    1bcb956114417726379f99f8e67425ce

    SHA1

    95487a93bbbcc70c17f200305a690d18b0e9775e

    SHA256

    c701bd9809d3439a67d250c1f01c76f19f35e1cf6a30ffe38d51dec5de36e594

    SHA512

    debd11bfc2a6b05860374f30a2af4871b03e1da77490c590e9b76b23c6b86071199ac1451714412fb91883c2448c40f189ebd2e24cf505e1eced0704e1291d65

    Download Submit

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

    48KB

    MD5

    e48fe350eb0aeb4cedafd2c9ae689c96

    SHA1

    d0fb07d47835b00d21d258dbcc0e673d1c1ae861

    SHA256

    0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382

    SHA512

    a9f5b762f7688ea06a72475beeb61b3bbc6d726122e470f6a6370c1c3c4fea4e85d5fc697843eb745ca5f079f0103a2500af9b669c886143d514631165c032b3

    Download Submit

  • memory/1252-14-0x0000000074B00000-0x00000000752B0000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/1252-15-0x0000000074B00000-0x00000000752B0000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4364-0-0x0000000074BBE000-0x0000000074BBF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4364-1-0x0000000000520000-0x0000000000532000-memory.dmp

    Filesize

    72KB

    Download

  • memory/4364-2-0x0000000074BB0000-0x0000000075360000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4364-3-0x0000000004EF0000-0x0000000004F56000-memory.dmp

    Filesize

    408KB

    Download

  • memory/4364-4-0x0000000005340000-0x00000000053DC000-memory.dmp

    Filesize

    624KB

    Download

  • memory/4364-9-0x0000000074BB0000-0x0000000075360000-memory.dmp

    Filesize

    7.7MB

    Download