Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    10-12-2024 02:42

General

  • Target

    52a610b0ad89165f4a65a504f9cdd2ecdf8310d96088529fed72463a54fcd6c8.exe

  • Size

    785KB

  • MD5

    854ca372c90e86bd9a9dce642d7c1a88

  • SHA1

    11c86768112cfb75a3a9b0b8ef36997e80fedcdf

  • SHA256

    52a610b0ad89165f4a65a504f9cdd2ecdf8310d96088529fed72463a54fcd6c8

  • SHA512

    8e84e56178ecde6b20e3c605e146b001e5a1f4afe3101f299d18278f666ef4f478c68d3ec0dbe48e95960fb23ab970c1be6534627fe2029137b30f9d1f6dee43

  • SSDEEP

    12288:x1M0EGmwx0mUkw1tnPxv8opsdH0dwDIqkR:xuymwZ3UtPxvnps8wY

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
  • 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 2 IoCs
  • Loads dropped DLL 2 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 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\52a610b0ad89165f4a65a504f9cdd2ecdf8310d96088529fed72463a54fcd6c8.exe
    "C:\Users\Admin\AppData\Local\Temp\52a610b0ad89165f4a65a504f9cdd2ecdf8310d96088529fed72463a54fcd6c8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2100
    • 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:2896
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yRnixT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8DDE.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2792
    • C:\Users\Admin\AppData\Local\Temp\52a610b0ad89165f4a65a504f9cdd2ecdf8310d96088529fed72463a54fcd6c8.exe
      "C:\Users\Admin\AppData\Local\Temp\52a610b0ad89165f4a65a504f9cdd2ecdf8310d96088529fed72463a54fcd6c8.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2660
      • 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:580
        • 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:1684
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpB941.tmp.bat""
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1840
        • C:\Windows\SysWOW64\timeout.exe
          timeout 3
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:2840
        • 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 use of WriteProcessMemory
          PID:2868
          • 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:820
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yRnixT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp464.tmp"
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:1900
          • 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:1776

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab317E.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar43AA.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\AppData\Local\Temp\tmp8DDE.tmp

    Filesize

    1KB

    MD5

    15f366ffcaa7026c3c02699ea66a7c2c

    SHA1

    a02b24275911d55138253f7f8e4b5c1b57e2a2d2

    SHA256

    b3e6536ccac1429c783908337155f2e50af2682ef8e2b6a525996a350fd3e455

    SHA512

    ea83e9e355ead0d1d30774e0dc24fd7e05346ca0fd2a41776c29804d308145a5063461479d9d937a7c48948f25f291fa3b14eaa758314e04425d7b5b342f4390

  • C:\Users\Admin\AppData\Local\Temp\tmpB941.tmp.bat

    Filesize

    157B

    MD5

    459c88568ebdf5497913e3a9729ad912

    SHA1

    e0682f04051432503af117ce42c1d23715d713d2

    SHA256

    b523a989cb07e177ae3d3485e7b9883a561056dc0fe0d1de4ed233af0985dc9d

    SHA512

    202082e499ae117f0937cd6ea12fce55e3a13bbb9cbb4ffd598e946789e934000d2259c5a9a42d3cb65dec416506b73f4651e467f2b14fffb6b91495c7f0d2e3

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\5I1CFI76GW9ZT2M5D5ZG.temp

    Filesize

    7KB

    MD5

    deee128941b44231e25ab75e3dcf8b5a

    SHA1

    b399002f2e399cc665fb65bb66839d0a66ecfbb4

    SHA256

    1593d568c01d0f33438f53209d7d1112e6fc66c602867d644f3432a3749f0335

    SHA512

    a29757cbda164b1d7491f8b452ca412a24d62102e874a4d596d93930f4315c2c948a1c5983bd16a18928461d03293b4d117bf962bb2f86729e99dd4b85640c82

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

    Filesize

    7KB

    MD5

    b116cdb71e96a624b7affbc2a11b0ce1

    SHA1

    766d008db689d9a8fbabf17caf6ec23512736db4

    SHA256

    83814ba18fc9f2dc91d6583783eb2130728d4e9540061d91ee602e2139302aad

    SHA512

    6bb9e8bdffcefd3fed35d3f7e61e9d95c15b013b496e73c44c2abfabb3bcdfe519ca26a9794fa1f9ee0ce4afc1be41bef86571ff8006d60ea7042cb5c97f2b7d

  • 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

    785KB

    MD5

    854ca372c90e86bd9a9dce642d7c1a88

    SHA1

    11c86768112cfb75a3a9b0b8ef36997e80fedcdf

    SHA256

    52a610b0ad89165f4a65a504f9cdd2ecdf8310d96088529fed72463a54fcd6c8

    SHA512

    8e84e56178ecde6b20e3c605e146b001e5a1f4afe3101f299d18278f666ef4f478c68d3ec0dbe48e95960fb23ab970c1be6534627fe2029137b30f9d1f6dee43

  • memory/1776-57-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/1776-52-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1776-56-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2100-2-0x00000000741D0000-0x00000000748BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2100-5-0x00000000741D0000-0x00000000748BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2100-1-0x00000000011B0000-0x0000000001278000-memory.dmp

    Filesize

    800KB

  • memory/2100-4-0x00000000741DE000-0x00000000741DF000-memory.dmp

    Filesize

    4KB

  • memory/2100-0-0x00000000741DE000-0x00000000741DF000-memory.dmp

    Filesize

    4KB

  • memory/2100-27-0x00000000741D0000-0x00000000748BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2100-3-0x00000000004D0000-0x00000000004EE000-memory.dmp

    Filesize

    120KB

  • memory/2100-6-0x0000000001130000-0x000000000118C000-memory.dmp

    Filesize

    368KB

  • memory/2660-18-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2660-16-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2660-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2660-23-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2660-24-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2660-25-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2660-21-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2660-14-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2868-40-0x0000000000A60000-0x0000000000B28000-memory.dmp

    Filesize

    800KB