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Overview

overview

10

Static

static

10

3b03a24bfd...fc.exe

windows7-x64

10

3b03a24bfd...fc.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    05/08/2024, 01:18

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General

  • Target

    3b03a24bfde864b0d8b17213f7f2deb6d7e3f5f74b34d3b601cbadd961b904fc.exe

  • Size

    204KB

  • MD5

    dfcfcd78d212140c3b087d315d5ed33b

  • SHA1

    a3a5f02aa532c70f3452763ed6fbdfa03a7fac44

  • SHA256

    3b03a24bfde864b0d8b17213f7f2deb6d7e3f5f74b34d3b601cbadd961b904fc

  • SHA512

    8dd40a9d957745926f519f97a03a5727f79f120477aa624e7f8f48d6b5275f6b45df4ee998868dd4ff738f9851a0aac32df13b1674ca528cdf5fefc731ed4da7

  • SSDEEP

    3072:dURcxswS6PMVSsl3H1bNSGQNWwfBtOEp7ybMj/0vU7yZED+CDgbB+Y:d3S6PMVNVbR0W6mEpmbMjgU7yZf8

Score
10/10
asyncratrat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Mutex

server.underground-cheat.xyz

Attributes
  • delay

    1

  • install

    true

  • install_file

    WinUpdate.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
  • 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 50 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 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\3b03a24bfde864b0d8b17213f7f2deb6d7e3f5f74b34d3b601cbadd961b904fc.exe
    "C:\Users\Admin\AppData\Local\Temp\3b03a24bfde864b0d8b17213f7f2deb6d7e3f5f74b34d3b601cbadd961b904fc.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2544
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "WinUpdate" /tr '"C:\Users\Admin\AppData\Roaming\WinUpdate.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2244
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "WinUpdate" /tr '"C:\Users\Admin\AppData\Roaming\WinUpdate.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2748
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpE734.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2188
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2108
      • C:\Users\Admin\AppData\Roaming\WinUpdate.exe
        "C:\Users\Admin\AppData\Roaming\WinUpdate.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2764

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpE734.tmp.bat
    Filesize

    153B

    MD5

    1197efc3ec56a87263a93c20e92eaa20

    SHA1

    775aec0a069b55356b6a6e2d1e15f33a19c15939

    SHA256

    0a40ae4f047409a69f5becee480838826018db73bccfddd1c036712d66b6aa6d

    SHA512

    e7db749bf5f9c4bef4dd43654c03eaf4e1782a277e2d8aec6a9dec3c965a23341adeb7e7d4ad1c605af0dd65dd13089c4fd2a7d16930e2af2967a97dd034267f

    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\WinUpdate.exe
    Filesize

    204KB

    MD5

    dfcfcd78d212140c3b087d315d5ed33b

    SHA1

    a3a5f02aa532c70f3452763ed6fbdfa03a7fac44

    SHA256

    3b03a24bfde864b0d8b17213f7f2deb6d7e3f5f74b34d3b601cbadd961b904fc

    SHA512

    8dd40a9d957745926f519f97a03a5727f79f120477aa624e7f8f48d6b5275f6b45df4ee998868dd4ff738f9851a0aac32df13b1674ca528cdf5fefc731ed4da7

    Download Submit

  • memory/2544-0-0x000007FEF5643000-0x000007FEF5644000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2544-1-0x0000000000920000-0x0000000000958000-memory.dmp

    Filesize

    224KB

    Download

  • memory/2544-3-0x000007FEF5640000-0x000007FEF602C000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/2544-4-0x000007FEF5640000-0x000007FEF602C000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/2544-14-0x000007FEF5640000-0x000007FEF602C000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/2764-18-0x0000000000C60000-0x0000000000C98000-memory.dmp

    Filesize

    224KB

    Download