Analysis

  • max time kernel
    92s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-12-2024 16:24

General

  • Target

    IAKIZ_file.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
  • 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 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 34 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\IAKIZ_file.exe
    "C:\Users\Admin\AppData\Local\Temp\IAKIZ_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:2444
    • 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:4920
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yRnixT" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEE29.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4644
    • C:\Users\Admin\AppData\Local\Temp\IAKIZ_file.exe
      "C:\Users\Admin\AppData\Local\Temp\IAKIZ_file.exe"
      2⤵
        PID:4044
      • C:\Users\Admin\AppData\Local\Temp\IAKIZ_file.exe
        "C:\Users\Admin\AppData\Local\Temp\IAKIZ_file.exe"
        2⤵
          PID:5020
        • C:\Users\Admin\AppData\Local\Temp\IAKIZ_file.exe
          "C:\Users\Admin\AppData\Local\Temp\IAKIZ_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:872
          • 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:2128
            • 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:3948
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp1BD0.tmp.bat""
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1928
            • C:\Windows\SysWOW64\timeout.exe
              timeout 3
              4⤵
              • System Location Discovery: System Language Discovery
              • Delays execution with timeout.exe
              PID:3272
            • 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 use of WriteProcessMemory
              PID:2408
              • 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:4804
              • C:\Windows\SysWOW64\schtasks.exe
                "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yRnixT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp676F.tmp"
                5⤵
                • System Location Discovery: System Language Discovery
                • Scheduled Task/Job: Scheduled Task
                PID:752
              • 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:2500

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1KB

        MD5

        8ec831f3e3a3f77e4a7b9cd32b48384c

        SHA1

        d83f09fd87c5bd86e045873c231c14836e76a05c

        SHA256

        7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

        SHA512

        26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

      • 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

        7ccdd19d310e24f59b2d69528e6ef1d6

        SHA1

        fdfd09c7088bab98740ad24a46346648179a5171

        SHA256

        1b0f272be44a4354f01e15deb5caf147997afd1f8ca30a585c4e29275f54cd16

        SHA512

        12d6585e5c67e57da2f97ece7f904ce52b4021713be0b0f6e400aad16ece82b8da5ec4ca4606a541db1784b5933a160cbefaedec04af93e928de57770809e773

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3nwp2upo.r4y.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmp1BD0.tmp.bat

        Filesize

        157B

        MD5

        7470b33a1db89a8472413d8ae0fae3cd

        SHA1

        33e5e04a0c6365386e9750c349074ee56901abb3

        SHA256

        4d9f4ce72e8878b15eb92b78c1fb54802c5b07f9d76e8d5df658182612ae0b55

        SHA512

        ae43cb781bd848d3c5de97d4cf8b16f0d72a18af52de93ddb8fa3ce5586a103476e4f86cb503332ddb2b7b964468ae4b1971c4317ee6f4d56c82d2ceb8db152b

      • C:\Users\Admin\AppData\Local\Temp\tmpEE29.tmp

        Filesize

        1KB

        MD5

        712a059c664ff73b44656d6954a7d45c

        SHA1

        4d2b6868a77c4265c214a182b89d7bca9ecd2540

        SHA256

        fe83b63ad95b9927db0c6545855a78138cceadaf807e00b408fec6e08f4cb5be

        SHA512

        ed64bfc1c1a92e79e80a8b3b1edf84779357bbc525cfd1c55a380505b53749711e6621edb07c155430527b574b05419217d209ea092044aa8148aa5612d18944

      • 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

        785KB

        MD5

        854ca372c90e86bd9a9dce642d7c1a88

        SHA1

        11c86768112cfb75a3a9b0b8ef36997e80fedcdf

        SHA256

        52a610b0ad89165f4a65a504f9cdd2ecdf8310d96088529fed72463a54fcd6c8

        SHA512

        8e84e56178ecde6b20e3c605e146b001e5a1f4afe3101f299d18278f666ef4f478c68d3ec0dbe48e95960fb23ab970c1be6534627fe2029137b30f9d1f6dee43

      • memory/872-33-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/2444-5-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB

      • memory/2444-10-0x000000000A4E0000-0x000000000A57C000-memory.dmp

        Filesize

        624KB

      • memory/2444-0-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

        Filesize

        4KB

      • memory/2444-9-0x0000000007D30000-0x0000000007D8C000-memory.dmp

        Filesize

        368KB

      • memory/2444-8-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB

      • memory/2444-7-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

        Filesize

        4KB

      • memory/2444-6-0x0000000005180000-0x000000000519E000-memory.dmp

        Filesize

        120KB

      • memory/2444-37-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB

      • memory/2444-4-0x0000000005090000-0x000000000509A000-memory.dmp

        Filesize

        40KB

      • memory/2444-3-0x0000000004FE0000-0x0000000005072000-memory.dmp

        Filesize

        584KB

      • memory/2444-2-0x00000000054F0000-0x0000000005A94000-memory.dmp

        Filesize

        5.6MB

      • memory/2444-1-0x0000000000520000-0x00000000005E8000-memory.dmp

        Filesize

        800KB

      • memory/4804-104-0x0000000007AD0000-0x0000000007AE1000-memory.dmp

        Filesize

        68KB

      • memory/4804-90-0x00000000060B0000-0x0000000006404000-memory.dmp

        Filesize

        3.3MB

      • memory/4804-92-0x00000000065E0000-0x000000000662C000-memory.dmp

        Filesize

        304KB

      • memory/4804-93-0x0000000070AE0000-0x0000000070B2C000-memory.dmp

        Filesize

        304KB

      • memory/4804-103-0x0000000007760000-0x0000000007803000-memory.dmp

        Filesize

        652KB

      • memory/4804-105-0x0000000007B20000-0x0000000007B34000-memory.dmp

        Filesize

        80KB

      • memory/4920-40-0x0000000006D00000-0x0000000006D32000-memory.dmp

        Filesize

        200KB

      • memory/4920-51-0x0000000006D40000-0x0000000006D5E000-memory.dmp

        Filesize

        120KB

      • memory/4920-52-0x0000000007950000-0x00000000079F3000-memory.dmp

        Filesize

        652KB

      • memory/4920-53-0x0000000008090000-0x000000000870A000-memory.dmp

        Filesize

        6.5MB

      • memory/4920-54-0x0000000007A50000-0x0000000007A6A000-memory.dmp

        Filesize

        104KB

      • memory/4920-55-0x0000000007AC0000-0x0000000007ACA000-memory.dmp

        Filesize

        40KB

      • memory/4920-56-0x0000000007CD0000-0x0000000007D66000-memory.dmp

        Filesize

        600KB

      • memory/4920-57-0x0000000007C50000-0x0000000007C61000-memory.dmp

        Filesize

        68KB

      • memory/4920-58-0x0000000007C80000-0x0000000007C8E000-memory.dmp

        Filesize

        56KB

      • memory/4920-59-0x0000000007C90000-0x0000000007CA4000-memory.dmp

        Filesize

        80KB

      • memory/4920-60-0x0000000007D90000-0x0000000007DAA000-memory.dmp

        Filesize

        104KB

      • memory/4920-61-0x0000000007D70000-0x0000000007D78000-memory.dmp

        Filesize

        32KB

      • memory/4920-64-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB

      • memory/4920-41-0x000000006FC00000-0x000000006FC4C000-memory.dmp

        Filesize

        304KB

      • memory/4920-39-0x00000000067A0000-0x00000000067EC000-memory.dmp

        Filesize

        304KB

      • memory/4920-38-0x0000000006700000-0x000000000671E000-memory.dmp

        Filesize

        120KB

      • memory/4920-34-0x0000000006110000-0x0000000006464000-memory.dmp

        Filesize

        3.3MB

      • memory/4920-22-0x0000000005800000-0x0000000005866000-memory.dmp

        Filesize

        408KB

      • memory/4920-23-0x0000000005EA0000-0x0000000005F06000-memory.dmp

        Filesize

        408KB

      • memory/4920-21-0x0000000005760000-0x0000000005782000-memory.dmp

        Filesize

        136KB

      • memory/4920-20-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB

      • memory/4920-17-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB

      • memory/4920-18-0x0000000005870000-0x0000000005E98000-memory.dmp

        Filesize

        6.2MB

      • memory/4920-19-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB

      • memory/4920-15-0x0000000002E20000-0x0000000002E56000-memory.dmp

        Filesize

        216KB