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Overview

overview

10

Static

static

10

creative s...er.exe

windows7-x64

10

creative s...er.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    95s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/07/2024, 21:50

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General

  • Target

    creative sound blaster.exe

  • Size

    272KB

  • MD5

    ec3968fd0cf6b025017dbb83249de6f2

  • SHA1

    e1805d0f7984f46819320f2121fc67948c0cdfa5

  • SHA256

    3537198ebe7eb84bea0eaf47c3955d02b7d6b0d94cef1415d25c1558191a19bd

  • SHA512

    f73da223c70fe28f0f0515d17c56e3c8f2ced64894489749a9ad02822995e72429b6ab50963d84676a3de1f76d48bc5952cbb98f044376929332964fb228c509

  • SSDEEP

    3072:pUTcxgTEiPMVTb3SH1bnrgYQgy9ckYMmlB/v6A80XH3e55EVu9cBY:pCEiPMVTbiVb0YS5YM6VyA80XHbUe

Score
10/10
asyncratdllhost.datdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

dllhost.dat

C2

147.185.221.21:5552

147.185.221.21:6643
Mutex

evyjfpsdxkkqc

Attributes
  • delay

    1

  • install

    true

  • install_file

    dllhost.dat.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
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • 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 25 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\creative sound blaster.exe
    "C:\Users\Admin\AppData\Local\Temp\creative sound blaster.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3116
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "dllhost.dat" /tr '"C:\Users\Admin\AppData\Roaming\dllhost.dat.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3556
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "dllhost.dat" /tr '"C:\Users\Admin\AppData\Roaming\dllhost.dat.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3372
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp94ED.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3044
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4516
      • C:\Users\Admin\AppData\Roaming\dllhost.dat.exe
        "C:\Users\Admin\AppData\Roaming\dllhost.dat.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4156

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp94ED.tmp.bat
    Filesize

    155B

    MD5

    38c4ce4187900cccacfcc7b79aeebd79

    SHA1

    6758f55be6b0e6866ceb04007543c5f547c78e95

    SHA256

    4209663b193c40f6b25008839b7c8e47ab359233239e74e328a33ca48a52707c

    SHA512

    27d1a241c9b146659ffebe989b0366432abb27fc130476116b35081cf2bda183ad3f106ab55c23bd466579df07ce59dd55578c2970acc7c061ddf20893fc0d52

    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\dllhost.dat.exe
    Filesize

    272KB

    MD5

    ec3968fd0cf6b025017dbb83249de6f2

    SHA1

    e1805d0f7984f46819320f2121fc67948c0cdfa5

    SHA256

    3537198ebe7eb84bea0eaf47c3955d02b7d6b0d94cef1415d25c1558191a19bd

    SHA512

    f73da223c70fe28f0f0515d17c56e3c8f2ced64894489749a9ad02822995e72429b6ab50963d84676a3de1f76d48bc5952cbb98f044376929332964fb228c509

    Download Submit

  • memory/3116-0-0x00007FFF80D43000-0x00007FFF80D45000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3116-1-0x00000000004F0000-0x000000000053A000-memory.dmp

    Filesize

    296KB

    Download

  • memory/3116-3-0x00007FFF80D40000-0x00007FFF81801000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3116-8-0x00007FFF80D40000-0x00007FFF81801000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3116-9-0x00007FFF80D40000-0x00007FFF81801000-memory.dmp

    Filesize

    10.8MB

    Download