Analysis
- max time kernel
97s - 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, 16:17
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20240708-en
General
- Target file.exe
- Size 785KB
- Sample241209-trc72stkfv
- SHA256 52a610b0ad89165f4a65a504f9cdd2ecdf8310d96088529fed72463a54fcd6c8
- MD5 854ca372c90e86bd9a9dce642d7c1a88
- SHA1 11c86768112cfb75a3a9b0b8ef36997e80fedcdf
- SHA512 8e84e56178ecde6b20e3c605e146b001e5a1f4afe3101f299d18278f666ef4f478c68d3ec0dbe48e95960fb23ab970c1be6534627fe2029137b30f9d1f6dee43
- SSDEEP 12288:x1M0EGmwx0mUkw1tnPxv8opsdH0dwDIqkR:xuymwZ3UtPxvnps8wY
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
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asyncrat
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Venom RAT + HVNC + Stealer + Grabber v6.0.3
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Default
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185.208.158.187:4449
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tnybaidkzovl
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delay
10
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install
true
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install_file
NotepadUpdate.exe
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install_folder
%AppData%
Signatures
- 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.
pid Process 3312 powershell.exe 1440 powershell.exe - Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation NotepadUpdate.exe - Executes dropped EXE 2 IoCs
pid Process 2384 NotepadUpdate.exe 1968 NotepadUpdate.exe - 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
description pid Process procid_target PID 3016 set thread context of 2760 3016 file.exe 100 PID 2384 set thread context of 1968 2384 NotepadUpdate.exe 115 - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language NotepadUpdate.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language NotepadUpdate.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language timeout.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe - Delays execution with timeout.exe 1 IoCs
pid Process 2744 timeout.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3392 schtasks.exe 824 schtasks.exe 2068 schtasks.exe - Suspicious behavior: EnumeratesProcesses 30 IoCs
pid Process 3312 powershell.exe 3312 powershell.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 2760 file.exe 1440 powershell.exe 1440 powershell.exe 1968 NotepadUpdate.exe 1968 NotepadUpdate.exe 1968 NotepadUpdate.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3312 powershell.exe Token: SeDebugPrivilege 2760 file.exe Token: SeDebugPrivilege 1440 powershell.exe Token: SeDebugPrivilege 1968 NotepadUpdate.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1968 NotepadUpdate.exe - Suspicious use of WriteProcessMemory 43 IoCs
description pid Process procid_target PID 3016 wrote to memory of 3312 3016 file.exe 96 PID 3016 wrote to memory of 3312 3016 file.exe 96 PID 3016 wrote to memory of 3312 3016 file.exe 96 PID 3016 wrote to memory of 2068 3016 file.exe 98 PID 3016 wrote to memory of 2068 3016 file.exe 98 PID 3016 wrote to memory of 2068 3016 file.exe 98 PID 3016 wrote to memory of 2760 3016 file.exe 100 PID 3016 wrote to memory of 2760 3016 file.exe 100 PID 3016 wrote to memory of 2760 3016 file.exe 100 PID 3016 wrote to memory of 2760 3016 file.exe 100 PID 3016 wrote to memory of 2760 3016 file.exe 100 PID 3016 wrote to memory of 2760 3016 file.exe 100 PID 3016 wrote to memory of 2760 3016 file.exe 100 PID 3016 wrote to memory of 2760 3016 file.exe 100 PID 2760 wrote to memory of 2528 2760 file.exe 103 PID 2760 wrote to memory of 2528 2760 file.exe 103 PID 2760 wrote to memory of 2528 2760 file.exe 103 PID 2760 wrote to memory of 2540 2760 file.exe 105 PID 2760 wrote to memory of 2540 2760 file.exe 105 PID 2760 wrote to memory of 2540 2760 file.exe 105 PID 2528 wrote to memory of 3392 2528 cmd.exe 107 PID 2528 wrote to memory of 3392 2528 cmd.exe 107 PID 2528 wrote to memory of 3392 2528 cmd.exe 107 PID 2540 wrote to memory of 2744 2540 cmd.exe 108 PID 2540 wrote to memory of 2744 2540 cmd.exe 108 PID 2540 wrote to memory of 2744 2540 cmd.exe 108 PID 2540 wrote to memory of 2384 2540 cmd.exe 110 PID 2540 wrote to memory of 2384 2540 cmd.exe 110 PID 2540 wrote to memory of 2384 2540 cmd.exe 110 PID 2384 wrote to memory of 1440 2384 NotepadUpdate.exe 111 PID 2384 wrote to memory of 1440 2384 NotepadUpdate.exe 111 PID 2384 wrote to memory of 1440 2384 NotepadUpdate.exe 111 PID 2384 wrote to memory of 824 2384 NotepadUpdate.exe 113 PID 2384 wrote to memory of 824 2384 NotepadUpdate.exe 113 PID 2384 wrote to memory of 824 2384 NotepadUpdate.exe 113 PID 2384 wrote to memory of 1968 2384 NotepadUpdate.exe 115 PID 2384 wrote to memory of 1968 2384 NotepadUpdate.exe 115 PID 2384 wrote to memory of 1968 2384 NotepadUpdate.exe 115 PID 2384 wrote to memory of 1968 2384 NotepadUpdate.exe 115 PID 2384 wrote to memory of 1968 2384 NotepadUpdate.exe 115 PID 2384 wrote to memory of 1968 2384 NotepadUpdate.exe 115 PID 2384 wrote to memory of 1968 2384 NotepadUpdate.exe 115 PID 2384 wrote to memory of 1968 2384 NotepadUpdate.exe 115
Processes
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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 use of WriteProcessMemory
PID:3016 -
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:3312
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yRnixT" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF889.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2068
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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:2760 -
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"' & exit3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2528 -
C:\Windows\SysWOW64\schtasks.exeschtasks /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:3392
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2AA5.tmp.bat""3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2540 -
C:\Windows\SysWOW64\timeout.exetimeout 34⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:2744
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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:2384 -
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:1440
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yRnixT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp77EA.tmp"5⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:824
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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:1968
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\file.exe.log
- Size 1KB
- SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
- MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
- SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
- SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
- Size 2KB
- SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
- MD5 968cb9309758126772781b83adb8a28f
- SHA1 8da30e71accf186b2ba11da1797cf67f8f78b47c
- SHA512 4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 18KB
- SHA256 a69b88e44b307c4a47543db899b9c81ce67b6313b267e77b706ed529096471c9
- MD5 f597cb6f3b2acbc444d010a160d2d679
- SHA1 d4ef34e6eeb4f305acd794bde920060df52caeab
- SHA512 c536af0ff5253a861ed5779c402cd19efd2278080b172dba1369ec3b12dcd4898574e097f135644ec951485f6ffd36159aadd3f7a733dd1381adb36cac4a997d
- SSDEEP 384:ysf+BV9i+IWb24myBiukso9o3uT4K6seYLME/B03SoZ2fYSggjEDk+Q0gdotkKhD:vf3WcyotRo3uT4NgrqSBWeEDDCK3
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_udoxae1l.zw1.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\tmp2AA5.tmp.bat
- Size 157B
- SHA256 8699b39b4c3d77a8da21a81d83edf2d593beb031ccdd91045aff8e77a3449b93
- MD5 9d92d8128cd395de73f00d569eeafc40
- SHA1 c8eccd899c7aa20f3b5e28dbeeebf948e4a98901
- SHA512 eec8837d788e0c8bbafb58ddf4e2e0e685595835f4c14de53e5f60848628b0879fca1fa68c3cbfd77e2bca24c8aa8e3685bb04b228b1e04219958f160300f31d
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\tmpF889.tmp
- Size 1KB
- SHA256 d6409c0dd6c75cee225f5b9f36847d30725ad129754df38fef74df74375985f6
- MD5 9fc168ab6fe6ed238e7806849fc54787
- SHA1 7a216c6577f90d6c872428bdd4978318233e254b
- SHA512 a0ba5ce300f00b98257b18fcf07bfb200b1436489f2b3f65fd050dd0ba7aee3985fd95b5738593727015402e0431d7c7e32ee8b9b866d0e1d125e653e858035a
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
- Size 8B
- SHA256 c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761
- MD5 cf759e4c5f14fe3eec41b87ed756cea8
- SHA1 c27c796bb3c2fac929359563676f4ba1ffada1f5
- SHA512 c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe
- Size 785KB
- SHA256 52a610b0ad89165f4a65a504f9cdd2ecdf8310d96088529fed72463a54fcd6c8
- MD5 854ca372c90e86bd9a9dce642d7c1a88
- SHA1 11c86768112cfb75a3a9b0b8ef36997e80fedcdf
- SHA512 8e84e56178ecde6b20e3c605e146b001e5a1f4afe3101f299d18278f666ef4f478c68d3ec0dbe48e95960fb23ab970c1be6534627fe2029137b30f9d1f6dee43
- SSDEEP 12288:x1M0EGmwx0mUkw1tnPxv8opsdH0dwDIqkR:xuymwZ3UtPxvnps8wY
- MD5 SHA1 SHA512 SSDEEP