Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-12-2024 20:29

General

  • Target

    file.exe

  • Size

    654KB

  • MD5

    ae806b6f5e02484c2be2b49da35b3d26

  • SHA1

    66ae8df94cd9e804fab01bc6be77cfec8d544226

  • SHA256

    7a31e73a61251309c51a343c14af5149915110c0f818747f7de78344739f21c5

  • SHA512

    8ea9cfe94bc4dbfc0a6c43b811461e6da4cab55fe6a3ddd1a4795f0887b2a311a6e9d9a464bb9253985c5a68cc206c36a703319463e5daca92adbe056e16a968

  • SSDEEP

    12288:77MfJIBvlbmLC3sCPtRzSXiBdja/z2UmG5pc4M1xK/5BFz2430RUwy9EXX+CNkkR:SIme3LLAiBdMmGpNkspz2i0RUwFOCND

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

185.208.158.187:4449

Mutex

tnybaidkzovl

Attributes
  • delay

    10

  • install

    true

  • install_file

    NotepadUpdate.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • VenomRAT 1 IoCs

    Detects VenomRAT.

  • Venomrat family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Delays execution with timeout.exe 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 36 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2396
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AtkzppDHiyvcIR.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4816
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AtkzppDHiyvcIR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp14AC.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4208
    • C:\Users\Admin\AppData\Local\Temp\file.exe
      "C:\Users\Admin\AppData\Local\Temp\file.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4916
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "NotepadUpdate" /tr '"C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe"' & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3400
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /f /sc onlogon /rl highest /tn "NotepadUpdate" /tr '"C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe"'
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:3404
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp42B1.tmp.bat""
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1984
        • C:\Windows\SysWOW64\timeout.exe
          timeout 3
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:2612
        • C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe
          "C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:3572
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AtkzppDHiyvcIR.exe"
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4488
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AtkzppDHiyvcIR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9016.tmp"
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:4340
          • C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe
            "C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe"
            5⤵
            • Executes dropped EXE
            PID:520
          • C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe
            "C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe"
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:732

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\file.exe.log

    Filesize

    1KB

    MD5

    b7b9acb869ccc7f7ecb5304ec0384dee

    SHA1

    6a90751c95817903ee833d59a0abbef425a613b3

    SHA256

    8cb00a15cd942a1861c573d86d6fb430512c8e2f80f6349f48b16b8709ca7aa4

    SHA512

    7bec881ac5f59ac26f1be1e7e26d63f040c06369de10c1c246e531a4395d27c335d9acc647ecdedb48ed37bdc2dc405a4cfc11762e1c00659a49be259eaf8764

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    df3846012e4de958896af3bac9fb17b0

    SHA1

    15299bef517b5a6b3982d99e4405cc1dadabf26f

    SHA256

    306baa22ad8b79d22394f204119f3e219b8e29b107e667e5f94b8338e1bb56ac

    SHA512

    abdbb1f17e162f2a8e317cbf43d60423e99dd9dca5eec0c157676459998d7372e48a957d41e2902333ad0f9929bed60994c3b0f60f789e56ff6831738e1d8843

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1cgu1vln.te3.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp14AC.tmp

    Filesize

    1KB

    MD5

    3a8e83f814f1c9b1556c28885dd8648f

    SHA1

    22e27c007e5896ed0927147448268db1a32a0651

    SHA256

    529cf13ad2ae123fe34c077170c6247b304c234717a1478401688379b7f97880

    SHA512

    3af0a3809bad4db2cccf40a8a8cef73fc8f4732cde49f9944f599483b0e485ebc771eb97726cd319687cbe6c5feb9edd175626c00a01f484c050a88e74e549bb

  • C:\Users\Admin\AppData\Local\Temp\tmp42B1.tmp.bat

    Filesize

    157B

    MD5

    e8e87dcd929dd8eb4fb0d29372b31903

    SHA1

    8b962246f812c2a159ae6ad2fffd43412f24be6f

    SHA256

    a3c5f39c69677b9c100b4fba173f9c772e99f0a83cc2383004272f4f80f5a5cc

    SHA512

    1b5c588086fd84f6d7cc5a33658d6d58f76fb8678caaa883a808e18bacbcaf2a7e03fe25e42ceaa3d0115d9f72ebbca4ec6a16ace542467dcaf69ec8bb910827

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

    Filesize

    8B

    MD5

    cf759e4c5f14fe3eec41b87ed756cea8

    SHA1

    c27c796bb3c2fac929359563676f4ba1ffada1f5

    SHA256

    c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

    SHA512

    c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

  • C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe

    Filesize

    654KB

    MD5

    ae806b6f5e02484c2be2b49da35b3d26

    SHA1

    66ae8df94cd9e804fab01bc6be77cfec8d544226

    SHA256

    7a31e73a61251309c51a343c14af5149915110c0f818747f7de78344739f21c5

    SHA512

    8ea9cfe94bc4dbfc0a6c43b811461e6da4cab55fe6a3ddd1a4795f0887b2a311a6e9d9a464bb9253985c5a68cc206c36a703319463e5daca92adbe056e16a968

  • memory/2396-5-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB

  • memory/2396-2-0x00000000053B0000-0x0000000005954000-memory.dmp

    Filesize

    5.6MB

  • memory/2396-10-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB

  • memory/2396-11-0x00000000080C0000-0x000000000811E000-memory.dmp

    Filesize

    376KB

  • memory/2396-28-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB

  • memory/2396-8-0x0000000007E00000-0x0000000007E1E000-memory.dmp

    Filesize

    120KB

  • memory/2396-7-0x0000000005B80000-0x0000000005C1C000-memory.dmp

    Filesize

    624KB

  • memory/2396-6-0x0000000005AC0000-0x0000000005ACA000-memory.dmp

    Filesize

    40KB

  • memory/2396-4-0x0000000004F80000-0x00000000052D4000-memory.dmp

    Filesize

    3.3MB

  • memory/2396-3-0x0000000004EE0000-0x0000000004F72000-memory.dmp

    Filesize

    584KB

  • memory/2396-9-0x000000007536E000-0x000000007536F000-memory.dmp

    Filesize

    4KB

  • memory/2396-1-0x0000000000460000-0x0000000000506000-memory.dmp

    Filesize

    664KB

  • memory/2396-0-0x000000007536E000-0x000000007536F000-memory.dmp

    Filesize

    4KB

  • memory/4488-93-0x0000000071270000-0x00000000712BC000-memory.dmp

    Filesize

    304KB

  • memory/4816-38-0x00000000068C0000-0x00000000068DE000-memory.dmp

    Filesize

    120KB

  • memory/4816-58-0x0000000007E10000-0x0000000007E1E000-memory.dmp

    Filesize

    56KB

  • memory/4816-16-0x00000000052B0000-0x00000000052E6000-memory.dmp

    Filesize

    216KB

  • memory/4816-39-0x0000000006900000-0x000000000694C000-memory.dmp

    Filesize

    304KB

  • memory/4816-40-0x0000000007880000-0x00000000078B2000-memory.dmp

    Filesize

    200KB

  • memory/4816-41-0x0000000071270000-0x00000000712BC000-memory.dmp

    Filesize

    304KB

  • memory/4816-51-0x0000000006E70000-0x0000000006E8E000-memory.dmp

    Filesize

    120KB

  • memory/4816-52-0x00000000078C0000-0x0000000007963000-memory.dmp

    Filesize

    652KB

  • memory/4816-53-0x0000000008230000-0x00000000088AA000-memory.dmp

    Filesize

    6.5MB

  • memory/4816-54-0x0000000007BE0000-0x0000000007BFA000-memory.dmp

    Filesize

    104KB

  • memory/4816-55-0x0000000007C60000-0x0000000007C6A000-memory.dmp

    Filesize

    40KB

  • memory/4816-56-0x0000000007E60000-0x0000000007EF6000-memory.dmp

    Filesize

    600KB

  • memory/4816-57-0x0000000007DE0000-0x0000000007DF1000-memory.dmp

    Filesize

    68KB

  • memory/4816-23-0x0000000005820000-0x0000000005886000-memory.dmp

    Filesize

    408KB

  • memory/4816-59-0x0000000007E20000-0x0000000007E34000-memory.dmp

    Filesize

    80KB

  • memory/4816-60-0x0000000007F20000-0x0000000007F3A000-memory.dmp

    Filesize

    104KB

  • memory/4816-61-0x0000000007F00000-0x0000000007F08000-memory.dmp

    Filesize

    32KB

  • memory/4816-64-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB

  • memory/4816-17-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB

  • memory/4816-24-0x0000000005FC0000-0x0000000006026000-memory.dmp

    Filesize

    408KB

  • memory/4816-19-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB

  • memory/4816-22-0x0000000005780000-0x00000000057A2000-memory.dmp

    Filesize

    136KB

  • memory/4816-20-0x0000000005920000-0x0000000005F48000-memory.dmp

    Filesize

    6.2MB

  • memory/4916-21-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/4916-70-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB

  • memory/4916-65-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB

  • memory/4916-27-0x0000000075360000-0x0000000075B10000-memory.dmp

    Filesize

    7.7MB