Analysis
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max time kernel
94s -
max time network
151s -
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 16:33
Static task
static1
Behavioral task
behavioral1
Sample
41VMO_file.exe
Resource
win7-20240729-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/888-20-0x0000000000400000-0x0000000000418000-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 3096 powershell.exe 2532 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 41VMO_file.exe Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation 41VMO_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 224 NotepadUpdate.exe 3860 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 1460 set thread context of 888 1460 41VMO_file.exe 101 PID 224 set thread context of 3860 224 NotepadUpdate.exe 116 -
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 cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.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 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 NotepadUpdate.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 41VMO_file.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 4536 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 3168 schtasks.exe 4032 schtasks.exe 2872 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 30 IoCs
pid Process 2532 powershell.exe 2532 powershell.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 888 41VMO_file.exe 3096 powershell.exe 3096 powershell.exe 3860 NotepadUpdate.exe 3860 NotepadUpdate.exe 3860 NotepadUpdate.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2532 powershell.exe Token: SeDebugPrivilege 888 41VMO_file.exe Token: SeDebugPrivilege 3860 NotepadUpdate.exe Token: SeDebugPrivilege 3096 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3860 NotepadUpdate.exe -
Suspicious use of WriteProcessMemory 43 IoCs
description pid Process procid_target PID 1460 wrote to memory of 2532 1460 41VMO_file.exe 97 PID 1460 wrote to memory of 2532 1460 41VMO_file.exe 97 PID 1460 wrote to memory of 2532 1460 41VMO_file.exe 97 PID 1460 wrote to memory of 3168 1460 41VMO_file.exe 99 PID 1460 wrote to memory of 3168 1460 41VMO_file.exe 99 PID 1460 wrote to memory of 3168 1460 41VMO_file.exe 99 PID 1460 wrote to memory of 888 1460 41VMO_file.exe 101 PID 1460 wrote to memory of 888 1460 41VMO_file.exe 101 PID 1460 wrote to memory of 888 1460 41VMO_file.exe 101 PID 1460 wrote to memory of 888 1460 41VMO_file.exe 101 PID 1460 wrote to memory of 888 1460 41VMO_file.exe 101 PID 1460 wrote to memory of 888 1460 41VMO_file.exe 101 PID 1460 wrote to memory of 888 1460 41VMO_file.exe 101 PID 1460 wrote to memory of 888 1460 41VMO_file.exe 101 PID 888 wrote to memory of 4664 888 41VMO_file.exe 102 PID 888 wrote to memory of 4664 888 41VMO_file.exe 102 PID 888 wrote to memory of 4664 888 41VMO_file.exe 102 PID 888 wrote to memory of 3832 888 41VMO_file.exe 104 PID 888 wrote to memory of 3832 888 41VMO_file.exe 104 PID 888 wrote to memory of 3832 888 41VMO_file.exe 104 PID 3832 wrote to memory of 4536 3832 cmd.exe 106 PID 3832 wrote to memory of 4536 3832 cmd.exe 106 PID 3832 wrote to memory of 4536 3832 cmd.exe 106 PID 4664 wrote to memory of 4032 4664 cmd.exe 107 PID 4664 wrote to memory of 4032 4664 cmd.exe 107 PID 4664 wrote to memory of 4032 4664 cmd.exe 107 PID 3832 wrote to memory of 224 3832 cmd.exe 110 PID 3832 wrote to memory of 224 3832 cmd.exe 110 PID 3832 wrote to memory of 224 3832 cmd.exe 110 PID 224 wrote to memory of 3096 224 NotepadUpdate.exe 112 PID 224 wrote to memory of 3096 224 NotepadUpdate.exe 112 PID 224 wrote to memory of 3096 224 NotepadUpdate.exe 112 PID 224 wrote to memory of 2872 224 NotepadUpdate.exe 114 PID 224 wrote to memory of 2872 224 NotepadUpdate.exe 114 PID 224 wrote to memory of 2872 224 NotepadUpdate.exe 114 PID 224 wrote to memory of 3860 224 NotepadUpdate.exe 116 PID 224 wrote to memory of 3860 224 NotepadUpdate.exe 116 PID 224 wrote to memory of 3860 224 NotepadUpdate.exe 116 PID 224 wrote to memory of 3860 224 NotepadUpdate.exe 116 PID 224 wrote to memory of 3860 224 NotepadUpdate.exe 116 PID 224 wrote to memory of 3860 224 NotepadUpdate.exe 116 PID 224 wrote to memory of 3860 224 NotepadUpdate.exe 116 PID 224 wrote to memory of 3860 224 NotepadUpdate.exe 116
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 use of WriteProcessMemory
PID:1460 -
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:2532
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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\tmpDCE3.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3168
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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:888 -
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:4664 -
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:4032
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA5B.tmp.bat""3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3832 -
C:\Windows\SysWOW64\timeout.exetimeout 34⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:4536
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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:224 -
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:3096
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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\tmp5639.tmp"5⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2872
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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:3860
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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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
MD5a40ecfb4cd2e9377fc9ed46a1a09b0a9
SHA16d6c18507915afef85265de4ece0592d75e60403
SHA256f1f603ab55eeee08e8f3d2a3333aec639604a984c9a9304c40f77834d03036b2
SHA512fcfdae0ed6dd8f2e3af099b6f3f75324b174d5dd7070f4dd467c30e491f2f9b76106715d6a8bb41d85f0e9b0d44c537bc2095a39adb9c20861a0caf91f7f8a19
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
156B
MD54644176dfcafac00f3ce565e9bad75fb
SHA1bf10697d0853245698fd269f418a11b1edf209d5
SHA256a8fb5b1c82d6591862fefd7e172244046c17a4ef7026617a308b7214b35a1cfb
SHA5122692b48a45d46999cf90c824bb3a219993793bc294860c9d6db09778a512d1bc2d72f4f5cdd7c27b5e3c4a92749412838a121456cc4cbabba86b4ea0ec00038e
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Filesize
1KB
MD59fc168ab6fe6ed238e7806849fc54787
SHA17a216c6577f90d6c872428bdd4978318233e254b
SHA256d6409c0dd6c75cee225f5b9f36847d30725ad129754df38fef74df74375985f6
SHA512a0ba5ce300f00b98257b18fcf07bfb200b1436489f2b3f65fd050dd0ba7aee3985fd95b5738593727015402e0431d7c7e32ee8b9b866d0e1d125e653e858035a
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Filesize
8B
MD5cf759e4c5f14fe3eec41b87ed756cea8
SHA1c27c796bb3c2fac929359563676f4ba1ffada1f5
SHA256c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761
SHA512c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b
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Filesize
3.6MB
MD5d3f515d42cf7e62738c596dc4ba9fdb9
SHA1f63216b18ab4265d9c0b3243ba491fcb74b1bac6
SHA2561e01e5c379d7504669a75f317c60c31297dc347792b9131fad73092a88383393
SHA51281462412b18e715f81499769c6e3a89cd612683151b7984452dac4f1e5b2e69b6a0fc6542103327e6e46668d9b2268502fcc98415c44a054f1168f7bc8fefb52