Analysis

  • max time kernel
    97s
  • max time network
    149s
  • 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 16:35

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 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 34 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 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:3288
    • 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:4144
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yRnixT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp14EA.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4204
    • C:\Users\Admin\AppData\Local\Temp\IAKIZ_file.exe
      "C:\Users\Admin\AppData\Local\Temp\IAKIZ_file.exe"
      2⤵
        PID:4472
      • 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:3420
        • 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:4040
          • 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:3076
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4476.tmp.bat""
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3920
          • C:\Windows\SysWOW64\timeout.exe
            timeout 3
            4⤵
            • System Location Discovery: System Language Discovery
            • Delays execution with timeout.exe
            PID:1108
          • 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:2192
            • 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:628
            • C:\Windows\SysWOW64\schtasks.exe
              "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yRnixT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8FA8.tmp"
              5⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:1620
            • C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe
              "C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe"
              5⤵
              • Executes dropped EXE
              PID:4352
            • 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:1548

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    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

      8939af8eba945d26e9bc514085e19eea

      SHA1

      cdcb318b11dc6cb3f0ce15815fd6da2d9eee8994

      SHA256

      15c9eba0cbf76bf59b4b4dd0433399c888f03819ab1bb9e729ffa65806892fc8

      SHA512

      826c809a46388e33d3ee70771f82808d88cd29e9bfa05329ed9a857375936e272417f9e4ef77d922ce05e0c47e4601d41b172f08b3dc92bed848ffd025e41f01

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_00hjpbmx.nce.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp14EA.tmp

      Filesize

      1KB

      MD5

      911aa98b25822f1ba2779622a592854f

      SHA1

      a1a5dcc229abe08944761b6b0df8fa3b1681d97a

      SHA256

      6a863c4ebea1746ce4f2603260a1074162546677df13c503030e14edd84a18a8

      SHA512

      75c743cbfdb62f9eeee57d448b5d5ec78c7e2566a2e4f56f111ef51c8fca04b057006422c27c249eb09cb7390a966f1ada33a36cf81147ec59e4bd394a424f00

    • C:\Users\Admin\AppData\Local\Temp\tmp4476.tmp.bat

      Filesize

      157B

      MD5

      470b77270603a0c8d9e8c6dd74007654

      SHA1

      e6408de3f905bc05f66a49fe99385b0f197c3e78

      SHA256

      af663919bd93020889cd82a913ec6a745beca304e2252db794ea58e31c74807b

      SHA512

      c2a11df5574d73b9b3547f624ec4599fc4873f47a913b1cb870690360e8b01f7b3b34c4013387b0bd064c56773fb114ff4898b60997ae34470958db68f1404f9

    • 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/628-106-0x0000000007700000-0x0000000007714000-memory.dmp

      Filesize

      80KB

    • memory/628-90-0x0000000005AF0000-0x0000000005E44000-memory.dmp

      Filesize

      3.3MB

    • memory/628-93-0x0000000006340000-0x000000000638C000-memory.dmp

      Filesize

      304KB

    • memory/628-94-0x00000000753D0000-0x000000007541C000-memory.dmp

      Filesize

      304KB

    • memory/628-104-0x0000000007380000-0x0000000007423000-memory.dmp

      Filesize

      652KB

    • memory/628-105-0x00000000076C0000-0x00000000076D1000-memory.dmp

      Filesize

      68KB

    • memory/3288-3-0x00000000055D0000-0x0000000005662000-memory.dmp

      Filesize

      584KB

    • memory/3288-37-0x0000000074AF0000-0x00000000752A0000-memory.dmp

      Filesize

      7.7MB

    • memory/3288-10-0x000000000AE00000-0x000000000AE9C000-memory.dmp

      Filesize

      624KB

    • memory/3288-9-0x0000000008660000-0x00000000086BC000-memory.dmp

      Filesize

      368KB

    • memory/3288-8-0x0000000074AF0000-0x00000000752A0000-memory.dmp

      Filesize

      7.7MB

    • memory/3288-7-0x0000000074AFE000-0x0000000074AFF000-memory.dmp

      Filesize

      4KB

    • memory/3288-6-0x0000000005930000-0x000000000594E000-memory.dmp

      Filesize

      120KB

    • memory/3288-5-0x0000000074AF0000-0x00000000752A0000-memory.dmp

      Filesize

      7.7MB

    • memory/3288-4-0x00000000055A0000-0x00000000055AA000-memory.dmp

      Filesize

      40KB

    • memory/3288-2-0x0000000005AE0000-0x0000000006084000-memory.dmp

      Filesize

      5.6MB

    • memory/3288-1-0x0000000000C10000-0x0000000000CD8000-memory.dmp

      Filesize

      800KB

    • memory/3288-0-0x0000000074AFE000-0x0000000074AFF000-memory.dmp

      Filesize

      4KB

    • memory/3420-24-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/4144-40-0x0000000006630000-0x000000000667C000-memory.dmp

      Filesize

      304KB

    • memory/4144-42-0x00000000753A0000-0x00000000753EC000-memory.dmp

      Filesize

      304KB

    • memory/4144-52-0x0000000006B70000-0x0000000006B8E000-memory.dmp

      Filesize

      120KB

    • memory/4144-53-0x00000000075D0000-0x0000000007673000-memory.dmp

      Filesize

      652KB

    • memory/4144-54-0x0000000007F00000-0x000000000857A000-memory.dmp

      Filesize

      6.5MB

    • memory/4144-55-0x00000000078C0000-0x00000000078DA000-memory.dmp

      Filesize

      104KB

    • memory/4144-56-0x0000000007930000-0x000000000793A000-memory.dmp

      Filesize

      40KB

    • memory/4144-57-0x0000000007B40000-0x0000000007BD6000-memory.dmp

      Filesize

      600KB

    • memory/4144-58-0x0000000007AC0000-0x0000000007AD1000-memory.dmp

      Filesize

      68KB

    • memory/4144-59-0x0000000007AF0000-0x0000000007AFE000-memory.dmp

      Filesize

      56KB

    • memory/4144-60-0x0000000007B00000-0x0000000007B14000-memory.dmp

      Filesize

      80KB

    • memory/4144-61-0x0000000007C00000-0x0000000007C1A000-memory.dmp

      Filesize

      104KB

    • memory/4144-62-0x0000000007BE0000-0x0000000007BE8000-memory.dmp

      Filesize

      32KB

    • memory/4144-65-0x0000000074AF0000-0x00000000752A0000-memory.dmp

      Filesize

      7.7MB

    • memory/4144-41-0x0000000007590000-0x00000000075C2000-memory.dmp

      Filesize

      200KB

    • memory/4144-39-0x00000000065A0000-0x00000000065BE000-memory.dmp

      Filesize

      120KB

    • memory/4144-32-0x0000000005FC0000-0x0000000006314000-memory.dmp

      Filesize

      3.3MB

    • memory/4144-21-0x00000000055C0000-0x00000000055E2000-memory.dmp

      Filesize

      136KB

    • memory/4144-22-0x0000000005DF0000-0x0000000005E56000-memory.dmp

      Filesize

      408KB

    • memory/4144-23-0x0000000005F50000-0x0000000005FB6000-memory.dmp

      Filesize

      408KB

    • memory/4144-20-0x0000000074AF0000-0x00000000752A0000-memory.dmp

      Filesize

      7.7MB

    • memory/4144-18-0x0000000074AF0000-0x00000000752A0000-memory.dmp

      Filesize

      7.7MB

    • memory/4144-17-0x0000000005650000-0x0000000005C78000-memory.dmp

      Filesize

      6.2MB

    • memory/4144-16-0x0000000074AF0000-0x00000000752A0000-memory.dmp

      Filesize

      7.7MB

    • memory/4144-15-0x0000000004FC0000-0x0000000004FF6000-memory.dmp

      Filesize

      216KB