Analysis
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max time kernel
99s -
max time network
148s -
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 16:18
Static task
static1
Behavioral task
behavioral1
Sample
41VMO_file.exe
Resource
win7-20241010-en
General
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Target
41VMO_file.exe
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Size
3.6MB
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MD5
d3f515d42cf7e62738c596dc4ba9fdb9
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SHA1
f63216b18ab4265d9c0b3243ba491fcb74b1bac6
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SHA256
1e01e5c379d7504669a75f317c60c31297dc347792b9131fad73092a88383393
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SHA512
81462412b18e715f81499769c6e3a89cd612683151b7984452dac4f1e5b2e69b6a0fc6542103327e6e46668d9b2268502fcc98415c44a054f1168f7bc8fefb52
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SSDEEP
49152:TwWtZnTwCk7UHla796h+16eUMTycWaX/Ngvv1VlHIPIV/CdQvJuJ44wPcbErkcz3:TwwvYXUMmczWvnlo0KSj5L1Ln9
Malware Config
Extracted
asyncrat
Venom RAT + HVNC + Stealer + Grabber v6.0.3
Default
185.208.158.187:4449
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
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Asyncrat family
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resource yara_rule behavioral2/memory/3824-34-0x0000000000400000-0x0000000000418000-memory.dmp VenomRAT -
Venomrat family
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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 2560 powershell.exe 4932 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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation 41VMO_file.exe Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation 41VMO_file.exe Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation NotepadUpdate.exe -
Executes dropped EXE 3 IoCs
pid Process 640 NotepadUpdate.exe 1648 NotepadUpdate.exe 4012 NotepadUpdate.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3228 set thread context of 3824 3228 41VMO_file.exe 95 PID 640 set thread context of 4012 640 NotepadUpdate.exe 110 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 41VMO_file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language timeout.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.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 powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 41VMO_file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.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 -
Delays execution with timeout.exe 1 IoCs
pid Process 544 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 644 schtasks.exe 4884 schtasks.exe 3860 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 36 IoCs
pid Process 2560 powershell.exe 3228 41VMO_file.exe 3228 41VMO_file.exe 3228 41VMO_file.exe 3228 41VMO_file.exe 2560 powershell.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 3824 41VMO_file.exe 640 NotepadUpdate.exe 640 NotepadUpdate.exe 4932 powershell.exe 4932 powershell.exe 4012 NotepadUpdate.exe 4012 NotepadUpdate.exe 4012 NotepadUpdate.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 2560 powershell.exe Token: SeDebugPrivilege 3228 41VMO_file.exe Token: SeDebugPrivilege 3824 41VMO_file.exe Token: SeDebugPrivilege 640 NotepadUpdate.exe Token: SeDebugPrivilege 4932 powershell.exe Token: SeDebugPrivilege 4012 NotepadUpdate.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4012 NotepadUpdate.exe -
Suspicious use of WriteProcessMemory 52 IoCs
description pid Process procid_target PID 3228 wrote to memory of 2560 3228 41VMO_file.exe 89 PID 3228 wrote to memory of 2560 3228 41VMO_file.exe 89 PID 3228 wrote to memory of 2560 3228 41VMO_file.exe 89 PID 3228 wrote to memory of 644 3228 41VMO_file.exe 91 PID 3228 wrote to memory of 644 3228 41VMO_file.exe 91 PID 3228 wrote to memory of 644 3228 41VMO_file.exe 91 PID 3228 wrote to memory of 5004 3228 41VMO_file.exe 93 PID 3228 wrote to memory of 5004 3228 41VMO_file.exe 93 PID 3228 wrote to memory of 5004 3228 41VMO_file.exe 93 PID 3228 wrote to memory of 2668 3228 41VMO_file.exe 94 PID 3228 wrote to memory of 2668 3228 41VMO_file.exe 94 PID 3228 wrote to memory of 2668 3228 41VMO_file.exe 94 PID 3228 wrote to memory of 3824 3228 41VMO_file.exe 95 PID 3228 wrote to memory of 3824 3228 41VMO_file.exe 95 PID 3228 wrote to memory of 3824 3228 41VMO_file.exe 95 PID 3228 wrote to memory of 3824 3228 41VMO_file.exe 95 PID 3228 wrote to memory of 3824 3228 41VMO_file.exe 95 PID 3228 wrote to memory of 3824 3228 41VMO_file.exe 95 PID 3228 wrote to memory of 3824 3228 41VMO_file.exe 95 PID 3228 wrote to memory of 3824 3228 41VMO_file.exe 95 PID 3824 wrote to memory of 2172 3824 41VMO_file.exe 97 PID 3824 wrote to memory of 2172 3824 41VMO_file.exe 97 PID 3824 wrote to memory of 2172 3824 41VMO_file.exe 97 PID 3824 wrote to memory of 4132 3824 41VMO_file.exe 98 PID 3824 wrote to memory of 4132 3824 41VMO_file.exe 98 PID 3824 wrote to memory of 4132 3824 41VMO_file.exe 98 PID 4132 wrote to memory of 544 4132 cmd.exe 101 PID 4132 wrote to memory of 544 4132 cmd.exe 101 PID 4132 wrote to memory of 544 4132 cmd.exe 101 PID 2172 wrote to memory of 4884 2172 cmd.exe 102 PID 2172 wrote to memory of 4884 2172 cmd.exe 102 PID 2172 wrote to memory of 4884 2172 cmd.exe 102 PID 4132 wrote to memory of 640 4132 cmd.exe 103 PID 4132 wrote to memory of 640 4132 cmd.exe 103 PID 4132 wrote to memory of 640 4132 cmd.exe 103 PID 640 wrote to memory of 4932 640 NotepadUpdate.exe 105 PID 640 wrote to memory of 4932 640 NotepadUpdate.exe 105 PID 640 wrote to memory of 4932 640 NotepadUpdate.exe 105 PID 640 wrote to memory of 3860 640 NotepadUpdate.exe 107 PID 640 wrote to memory of 3860 640 NotepadUpdate.exe 107 PID 640 wrote to memory of 3860 640 NotepadUpdate.exe 107 PID 640 wrote to memory of 1648 640 NotepadUpdate.exe 109 PID 640 wrote to memory of 1648 640 NotepadUpdate.exe 109 PID 640 wrote to memory of 1648 640 NotepadUpdate.exe 109 PID 640 wrote to memory of 4012 640 NotepadUpdate.exe 110 PID 640 wrote to memory of 4012 640 NotepadUpdate.exe 110 PID 640 wrote to memory of 4012 640 NotepadUpdate.exe 110 PID 640 wrote to memory of 4012 640 NotepadUpdate.exe 110 PID 640 wrote to memory of 4012 640 NotepadUpdate.exe 110 PID 640 wrote to memory of 4012 640 NotepadUpdate.exe 110 PID 640 wrote to memory of 4012 640 NotepadUpdate.exe 110 PID 640 wrote to memory of 4012 640 NotepadUpdate.exe 110
Processes
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C:\Users\Admin\AppData\Local\Temp\41VMO_file.exe"C:\Users\Admin\AppData\Local\Temp\41VMO_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:3228 -
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:2560
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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\tmpCC68.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:644
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C:\Users\Admin\AppData\Local\Temp\41VMO_file.exe"C:\Users\Admin\AppData\Local\Temp\41VMO_file.exe"2⤵PID:5004
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C:\Users\Admin\AppData\Local\Temp\41VMO_file.exe"C:\Users\Admin\AppData\Local\Temp\41VMO_file.exe"2⤵PID:2668
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C:\Users\Admin\AppData\Local\Temp\41VMO_file.exe"C:\Users\Admin\AppData\Local\Temp\41VMO_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:3824 -
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:2172 -
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:4884
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpFD7A.tmp.bat""3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4132 -
C:\Windows\SysWOW64\timeout.exetimeout 34⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:544
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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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:640 -
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:4932
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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\tmp4939.tmp"5⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3860
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C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe"C:\Users\Admin\AppData\Roaming\NotepadUpdate.exe"5⤵
- Executes dropped EXE
PID:1648
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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:4012
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD5826660b0c40cdd510db28d154a7f3ec4
SHA15b8dee8b8eef5f3bca7185dfd20b3f1f99d74ebc
SHA256df9c8c335edf9da46614c99ebf1daa5377d702723f79caaf2b57f0105c08fca4
SHA512ce98a0341b7d565d7e7ee3d19ed69bfd6add4d57560d637c869cbafe32d111a4260c1c29dd5ac40a2a5a44a29cc603a854f4312365076b3f7d31e8d4d95fe32d
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5911aa98b25822f1ba2779622a592854f
SHA1a1a5dcc229abe08944761b6b0df8fa3b1681d97a
SHA2566a863c4ebea1746ce4f2603260a1074162546677df13c503030e14edd84a18a8
SHA51275c743cbfdb62f9eeee57d448b5d5ec78c7e2566a2e4f56f111ef51c8fca04b057006422c27c249eb09cb7390a966f1ada33a36cf81147ec59e4bd394a424f00
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Filesize
157B
MD57a0f027548a79307d92f55da02c07786
SHA1324c1593d095936033b25aec5d516699986d4aed
SHA2564ef1aa322d233cbb37678c0fb733da380602d51ba95aed5c8f8115e7e9831f45
SHA5122727a86b1a2dde5242004be993ac4738014ef929a3bfb7bcfa1f5f15f652ab57129d12380f463fc0f0883ccfb0105398729c354e43e658fba0e30cd6f20543c0
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Filesize
8B
MD5cf759e4c5f14fe3eec41b87ed756cea8
SHA1c27c796bb3c2fac929359563676f4ba1ffada1f5
SHA256c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761
SHA512c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b
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Filesize
3.6MB
MD5d3f515d42cf7e62738c596dc4ba9fdb9
SHA1f63216b18ab4265d9c0b3243ba491fcb74b1bac6
SHA2561e01e5c379d7504669a75f317c60c31297dc347792b9131fad73092a88383393
SHA51281462412b18e715f81499769c6e3a89cd612683151b7984452dac4f1e5b2e69b6a0fc6542103327e6e46668d9b2268502fcc98415c44a054f1168f7bc8fefb52