Overview

overview

10

Static

static

10

f1cf79e0eb...2d.exe

windows7-x64

10

f1cf79e0eb...2d.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-08-2024 19:07

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General

  • Target

    f1cf79e0ebbb693d10ca8b96d6c6aae0176c3a3417512bacaf0016207e60492d.exe

  • Size

    82KB

  • MD5

    401cdb3441eaa85c7d5d85b8cfe0fe54

  • SHA1

    6bbb659c5c2b30c24313efa7a3775b78cbf385c5

  • SHA256

    f1cf79e0ebbb693d10ca8b96d6c6aae0176c3a3417512bacaf0016207e60492d

  • SHA512

    fb70afc7e5a382b3970cf92feaa12c4cfeba7a7dbca0d0f8736b5a38c0e4c42204cf4975081eab940524332fd3067bc4d5da053b55e71f983e01bc20454822bf

  • SSDEEP

    1536:x6UzwcxbUTCrmPMVAsP1K4I3H1bL/2sQzcH33LjVclN:wU0cxbgwmPMVA8wBH1bLesQK33LJY

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

127.0.0.1:4449

127.0.0.1:9001

91.92.254.89:4449

91.92.254.89:9001
Mutex

fefewfewfewf

Attributes
  • delay

    1

  • install

    true

  • install_file

    Realltek Audio Service 86x.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

    ratasyncrat
  • VenomRAT 2 IoCs

    Detects VenomRAT.

    rat
  • 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 35 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\f1cf79e0ebbb693d10ca8b96d6c6aae0176c3a3417512bacaf0016207e60492d.exe
    "C:\Users\Admin\AppData\Local\Temp\f1cf79e0ebbb693d10ca8b96d6c6aae0176c3a3417512bacaf0016207e60492d.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4104
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Realltek Audio Service 86x" /tr '"C:\Users\Admin\AppData\Roaming\Realltek Audio Service 86x.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2104
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Realltek Audio Service 86x" /tr '"C:\Users\Admin\AppData\Roaming\Realltek Audio Service 86x.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5068
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8916.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4488
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:1960
      • C:\Users\Admin\AppData\Roaming\Realltek Audio Service 86x.exe
        "C:\Users\Admin\AppData\Roaming\Realltek Audio Service 86x.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:5052

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp8916.tmp.bat
    Filesize

    170B

    MD5

    c0f8664aefd63487b63a72254e717a9c

    SHA1

    ca6bd031e32e6b576d2dc2df3abd8681ff8f738a

    SHA256

    4c389edc3d83ec563cff740847c18f36b4f2de33b9ca9faa6f9f888e62bf917d

    SHA512

    062304c3a24c6846d6ccf396d07f4eea1891da532b29e4b5fec4c699b24f465ae0b8e34b00a67acc84b5d3c654f7d07b38dc988f8b96593a8ca382968ab1828a

    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\Realltek Audio Service 86x.exe
    Filesize

    82KB

    MD5

    401cdb3441eaa85c7d5d85b8cfe0fe54

    SHA1

    6bbb659c5c2b30c24313efa7a3775b78cbf385c5

    SHA256

    f1cf79e0ebbb693d10ca8b96d6c6aae0176c3a3417512bacaf0016207e60492d

    SHA512

    fb70afc7e5a382b3970cf92feaa12c4cfeba7a7dbca0d0f8736b5a38c0e4c42204cf4975081eab940524332fd3067bc4d5da053b55e71f983e01bc20454822bf

    Download Submit

  • memory/4104-0-0x00007FF989723000-0x00007FF989725000-memory.dmp

    Filesize

    8KB

    Download

  • memory/4104-1-0x0000000000CD0000-0x0000000000CEA000-memory.dmp

    Filesize

    104KB

    Download

  • memory/4104-3-0x00007FF989720000-0x00007FF98A1E1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4104-8-0x00007FF989720000-0x00007FF98A1E1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4104-9-0x00007FF989720000-0x00007FF98A1E1000-memory.dmp

    Filesize

    10.8MB

    Download