Overview

overview

10

Static

static

10

3730cde00a...25.exe

windows7-x64

10

3730cde00a...25.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    139s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/12/2022, 04:18

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    3730cde00a18eb51a69cec2c0f7fec25.exe

  • Size

    48KB

  • MD5

    3730cde00a18eb51a69cec2c0f7fec25

  • SHA1

    e1e674276906eeb2edbc3def8d5b29d30e3ea860

  • SHA256

    5a55e8151e99ae52f6fb48e25cdf6d7d2fc6e531b6050a250fc4f53d480aa3ac

  • SHA512

    5ca253deebcd29f4473a79c0a485d6eb8995f51a6831a19e547da57c99fe4bd9ee59a0cf44c3be5635225e7abbaef7f04ed716bbeeaec8e55da7029bb7c4b09b

  • SSDEEP

    768:j5F603LoILkWAt+jipNRipp8YblgyDPhvEgK/JzZVc6KN:j5F6RtpNWzbiWnkJzZVclN

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    true

  • install_file

    SystemUI.exe

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/AjHdtULH

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

    ratasyncrat
  • Async RAT payload 3 IoCs
    rat
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3730cde00a18eb51a69cec2c0f7fec25.exe
    "C:\Users\Admin\AppData\Local\Temp\3730cde00a18eb51a69cec2c0f7fec25.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2620
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "SystemUI" /tr '"C:\Users\Admin\AppData\Roaming\SystemUI.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4240
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "SystemUI" /tr '"C:\Users\Admin\AppData\Roaming\SystemUI.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:2768
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7043.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4328
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:1212
      • C:\Users\Admin\AppData\Roaming\SystemUI.exe
        "C:\Users\Admin\AppData\Roaming\SystemUI.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:672

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp7043.tmp.bat
    Filesize

    152B

    MD5

    37872f2399c796c1759c538797514bdc

    SHA1

    5464d3ed42cbea828eb6d5b96fb58c561824be96

    SHA256

    7e63f24d1e2379d9794fbccd90142bb4e1e704620b6372e4554728324a6445ef

    SHA512

    24a59648d56fa1e94f2221a3dd4b7045423da7f2e066a93ea59f535b236fb80e1af445fc1ce8107733698794c2d44e612a0b0f734045f1175ee33b68293b47a0

    Download Submit

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

    48KB

    MD5

    3730cde00a18eb51a69cec2c0f7fec25

    SHA1

    e1e674276906eeb2edbc3def8d5b29d30e3ea860

    SHA256

    5a55e8151e99ae52f6fb48e25cdf6d7d2fc6e531b6050a250fc4f53d480aa3ac

    SHA512

    5ca253deebcd29f4473a79c0a485d6eb8995f51a6831a19e547da57c99fe4bd9ee59a0cf44c3be5635225e7abbaef7f04ed716bbeeaec8e55da7029bb7c4b09b

    Download Submit

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

    48KB

    MD5

    3730cde00a18eb51a69cec2c0f7fec25

    SHA1

    e1e674276906eeb2edbc3def8d5b29d30e3ea860

    SHA256

    5a55e8151e99ae52f6fb48e25cdf6d7d2fc6e531b6050a250fc4f53d480aa3ac

    SHA512

    5ca253deebcd29f4473a79c0a485d6eb8995f51a6831a19e547da57c99fe4bd9ee59a0cf44c3be5635225e7abbaef7f04ed716bbeeaec8e55da7029bb7c4b09b

    Download Submit

  • memory/672-144-0x00007FFC13DD0000-0x00007FFC14891000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/672-143-0x00007FFC13DD0000-0x00007FFC14891000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/2620-139-0x00007FFC13E80000-0x00007FFC14941000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/2620-132-0x0000000000F10000-0x0000000000F22000-memory.dmp

    Filesize

    72KB

    Download

  • memory/2620-133-0x00007FFC13E80000-0x00007FFC14941000-memory.dmp

    Filesize

    10.8MB

    Download