Analysis

  • max time kernel
    147s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    09-12-2024 16:18

General

  • Target

    41VMO_file.exe

  • Size

    3.6MB

  • MD5

    d3f515d42cf7e62738c596dc4ba9fdb9

  • SHA1

    f63216b18ab4265d9c0b3243ba491fcb74b1bac6

  • SHA256

    1e01e5c379d7504669a75f317c60c31297dc347792b9131fad73092a88383393

  • SHA512

    81462412b18e715f81499769c6e3a89cd612683151b7984452dac4f1e5b2e69b6a0fc6542103327e6e46668d9b2268502fcc98415c44a054f1168f7bc8fefb52

  • SSDEEP

    49152:TwWtZnTwCk7UHla796h+16eUMTycWaX/Ngvv1VlHIPIV/CdQvJuJ44wPcbErkcz3:TwwvYXUMmczWvnlo0KSj5L1Ln9

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 7 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.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 4 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 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\41VMO_file.exe
    "C:\Users\Admin\AppData\Local\Temp\41VMO_file.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2944
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\yRnixT.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2964
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yRnixT" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAEF5.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2140
    • C:\Users\Admin\AppData\Local\Temp\41VMO_file.exe
      "C:\Users\Admin\AppData\Local\Temp\41VMO_file.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2500
      • 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:2920
        • 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:2560
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpDB71.tmp.bat""
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2160
        • C:\Windows\SysWOW64\timeout.exe
          timeout 3
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:2000
        • C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe
          "C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2936
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\yRnixT.exe"
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1800
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yRnixT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp23B6.tmp"
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:812
          • C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe
            "C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe"
            5⤵
            • Executes dropped EXE
            PID:2256
          • C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe
            "C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe"
            5⤵
            • Executes dropped EXE
            PID:808
          • 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:2136

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab5092.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar6280.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\AppData\Local\Temp\tmpAEF5.tmp

    Filesize

    1KB

    MD5

    9ec835097da439048f3a483f0a2edc65

    SHA1

    a3c6a680263c1f222fcd13fe7d001ab401ea33cf

    SHA256

    e3f20f47843741ff2325e4ced8248ab6983a5ced0939eeef4bb5b5e9ce4ea6d6

    SHA512

    bbeea37da7eb626ff4fee2f3381ea0cd748df2affd79d2b3227439f4950c1d870c73b82f57f6005dff8aca751fad16c249df1d1b4ae3970325c15d337a965216

  • C:\Users\Admin\AppData\Local\Temp\tmpDB71.tmp.bat

    Filesize

    157B

    MD5

    1b821860b8d2997e61bddc5ffa0ec814

    SHA1

    ccda9244e6eb002464ccfedce7c75e761e40df6b

    SHA256

    bd041ff4c294d6c4e81f2dd945def49f7affe159280292ce2defe2562ca3198a

    SHA512

    cbd8fe51d0db03d732f7e1ed0a77d56ec6afa2f4e0bfd69b081b5d9c6c7d5bf3f9b7ca92bb39b1a8e94196f609fabc0322b86f7f78494955bd14c194840778db

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\3WHYQRVJ65LJJDS1LJHW.temp

    Filesize

    7KB

    MD5

    fed1d009424fc373ef70597a1bbd6d81

    SHA1

    e804ce97962c2be43241f4e579bd629c68a7c29f

    SHA256

    1d4b7755cb61b6b4a28b3b54c368375181a5c5b0fcbd0a7113d1a0b126227b53

    SHA512

    1c577179bb299f1d304ba1b9530984f09ad03756efca65519670837ae8932d95546aecf8d7ad7c75b03fb432bab1b78223cef24b6a7fb877963d86830bf8d708

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    2cd2f7681bf10b7cb1b5222272deff1e

    SHA1

    170ced3e81ed2389a55446e073aa6449df93b6f4

    SHA256

    c7cd447cc562e260bcc30f2490046c8a46957fa271d6f73f4482438951ea2d51

    SHA512

    178818789ebc790c9e0882edb98fe5680d623d4933381b91c9797c498e24d95fcfc440e8a6c19037b9ab8f3ebabc334d53cca684f00ee008b3a2c4560365c24e

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

    Filesize

    8B

    MD5

    cf759e4c5f14fe3eec41b87ed756cea8

    SHA1

    c27c796bb3c2fac929359563676f4ba1ffada1f5

    SHA256

    c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

    SHA512

    c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

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

    Filesize

    3.6MB

    MD5

    d3f515d42cf7e62738c596dc4ba9fdb9

    SHA1

    f63216b18ab4265d9c0b3243ba491fcb74b1bac6

    SHA256

    1e01e5c379d7504669a75f317c60c31297dc347792b9131fad73092a88383393

    SHA512

    81462412b18e715f81499769c6e3a89cd612683151b7984452dac4f1e5b2e69b6a0fc6542103327e6e46668d9b2268502fcc98415c44a054f1168f7bc8fefb52

  • memory/2136-61-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2136-64-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2136-66-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2500-24-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2500-23-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2500-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2500-18-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2500-16-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2500-14-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2500-20-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2500-25-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2936-40-0x0000000001070000-0x0000000001158000-memory.dmp

    Filesize

    928KB

  • memory/2944-27-0x0000000073EF0000-0x00000000745DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2944-0-0x0000000073EFE000-0x0000000073EFF000-memory.dmp

    Filesize

    4KB

  • memory/2944-4-0x0000000073EFE000-0x0000000073EFF000-memory.dmp

    Filesize

    4KB

  • memory/2944-5-0x0000000073EF0000-0x00000000745DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2944-6-0x0000000005C30000-0x0000000005C8C000-memory.dmp

    Filesize

    368KB

  • memory/2944-3-0x0000000000630000-0x000000000064E000-memory.dmp

    Filesize

    120KB

  • memory/2944-2-0x0000000073EF0000-0x00000000745DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2944-1-0x0000000000160000-0x0000000000248000-memory.dmp

    Filesize

    928KB