Overview

overview

10

Static

static

10

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-08-2024 11:58

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General

  • Target

    2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe

  • Size

    204KB

  • MD5

    cb4322618b0b4db058a877a4496155d6

  • SHA1

    701330516ff914a042f484d123f940a45175b2fc

  • SHA256

    2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9

  • SHA512

    f45e435db334cec2c39fdc3ab44be26ccff60f75a883430794bdf7a208c6e033b666b22fe93d8b736d336d07b539824d57a884df62004500bbb8e2318f7757af

  • SSDEEP

    3072:bUQcxeNykmPMV/prEH1bxmFQPWwfBtOEp7ybMj/0vU7yZED+CDgby/Y:bWkmPMV/ZEVbMmW6mEpmbMjgU7yZf8

Score
10/10
asyncratrat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Mutex

ewhzrclekutersfjwb

Attributes
  • delay

    1

  • install

    true

  • install_file

    Update.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 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\2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
    "C:\Users\Admin\AppData\Local\Temp\2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3560
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Update" /tr '"C:\Users\Admin\AppData\Roaming\Update.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3812
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Update" /tr '"C:\Users\Admin\AppData\Roaming\Update.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1244
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp758E.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1000
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4924
      • C:\Users\Admin\AppData\Roaming\Update.exe
        "C:\Users\Admin\AppData\Roaming\Update.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2684

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp758E.tmp.bat
    Filesize

    150B

    MD5

    d00a48f6288ec94a54112d7db45cf86f

    SHA1

    06c1b44701ce545f1b0f170e1860e124058ec544

    SHA256

    ad89af764392d9198878a5cc75ba8bbc1c8cb3df02c7bd6258fd77d986cc6899

    SHA512

    764b3b31b230192ce6dd74f07f3992cdefd06102ca4557142b33a85bd277ec713192f383123df8b6977e9a7831da17c16447d7fc07c4bfa8990b37b8a5fafa5f

    Download Submit

  • C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
    Filesize

    8B

    MD5

    cf759e4c5f14fe3eec41b87ed756cea8

    SHA1

    c27c796bb3c2fac929359563676f4ba1ffada1f5

    SHA256

    c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

    SHA512

    c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

    Download Submit

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

    204KB

    MD5

    cb4322618b0b4db058a877a4496155d6

    SHA1

    701330516ff914a042f484d123f940a45175b2fc

    SHA256

    2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9

    SHA512

    f45e435db334cec2c39fdc3ab44be26ccff60f75a883430794bdf7a208c6e033b666b22fe93d8b736d336d07b539824d57a884df62004500bbb8e2318f7757af

    Download Submit

  • memory/3560-0-0x00007FFDEB623000-0x00007FFDEB625000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3560-1-0x0000000000FB0000-0x0000000000FE8000-memory.dmp

    Filesize

    224KB

    Download

  • memory/3560-3-0x00007FFDEB620000-0x00007FFDEC0E1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3560-8-0x00007FFDEB620000-0x00007FFDEC0E1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3560-9-0x00007FFDEB620000-0x00007FFDEC0E1000-memory.dmp

    Filesize

    10.8MB

    Download