Analysis
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max time kernel
132s -
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
22-12-2024 13:31
Static task
static1
Behavioral task
behavioral1
Sample
38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe
Resource
win7-20240903-en
General
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Target
38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe
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Size
694KB
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MD5
32c67f99f3c95ba5e1816ca208f9b723
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SHA1
c1e29ecea3c87d671448b9dbcc8d8c67b0d14b7e
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SHA256
38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7
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SHA512
578526bda2f08948475726f36bf247aabeb8f3941f95153d6786bc0db6e43bad44502ef1757bae2bb7c6f6bd0a4bd51e9b33ae363be293b75f490a26c03795f8
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SSDEEP
12288:btoKggb2iNdvpc++pd1yIBbrk4ct0gdK/5SVns2M2TgN/0s:5oKgK1XpSpGIZn9+YSVsggi
Malware Config
Extracted
asyncrat
0.5.7B
Default
37.0.14.198:6161
AsyncMutex_6SI8OkPnk
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delay
3
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install
true
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install_file
.exe
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install_folder
%AppData%
Signatures
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Asyncrat 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 2172 powershell.exe 2796 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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation .exe -
Executes dropped EXE 2 IoCs
pid Process 4100 .exe 4092 .exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4988 set thread context of 4440 4988 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 103 PID 4100 set thread context of 4092 4100 .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 schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language .exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language timeout.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language .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 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 3988 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 4488 schtasks.exe 1644 schtasks.exe 2908 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 25 IoCs
pid Process 2796 powershell.exe 2796 powershell.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 2172 powershell.exe 2172 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2796 powershell.exe Token: SeDebugPrivilege 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe Token: SeDebugPrivilege 2172 powershell.exe Token: SeDebugPrivilege 4092 .exe -
Suspicious use of WriteProcessMemory 43 IoCs
description pid Process procid_target PID 4988 wrote to memory of 2796 4988 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 99 PID 4988 wrote to memory of 2796 4988 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 99 PID 4988 wrote to memory of 2796 4988 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 99 PID 4988 wrote to memory of 2908 4988 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 101 PID 4988 wrote to memory of 2908 4988 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 101 PID 4988 wrote to memory of 2908 4988 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 101 PID 4988 wrote to memory of 4440 4988 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 103 PID 4988 wrote to memory of 4440 4988 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 103 PID 4988 wrote to memory of 4440 4988 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 103 PID 4988 wrote to memory of 4440 4988 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 103 PID 4988 wrote to memory of 4440 4988 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 103 PID 4988 wrote to memory of 4440 4988 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 103 PID 4988 wrote to memory of 4440 4988 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 103 PID 4988 wrote to memory of 4440 4988 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 103 PID 4440 wrote to memory of 3864 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 104 PID 4440 wrote to memory of 3864 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 104 PID 4440 wrote to memory of 3864 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 104 PID 4440 wrote to memory of 3032 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 106 PID 4440 wrote to memory of 3032 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 106 PID 4440 wrote to memory of 3032 4440 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 106 PID 3032 wrote to memory of 3988 3032 cmd.exe 108 PID 3032 wrote to memory of 3988 3032 cmd.exe 108 PID 3032 wrote to memory of 3988 3032 cmd.exe 108 PID 3864 wrote to memory of 4488 3864 cmd.exe 109 PID 3864 wrote to memory of 4488 3864 cmd.exe 109 PID 3864 wrote to memory of 4488 3864 cmd.exe 109 PID 3032 wrote to memory of 4100 3032 cmd.exe 110 PID 3032 wrote to memory of 4100 3032 cmd.exe 110 PID 3032 wrote to memory of 4100 3032 cmd.exe 110 PID 4100 wrote to memory of 2172 4100 .exe 112 PID 4100 wrote to memory of 2172 4100 .exe 112 PID 4100 wrote to memory of 2172 4100 .exe 112 PID 4100 wrote to memory of 1644 4100 .exe 114 PID 4100 wrote to memory of 1644 4100 .exe 114 PID 4100 wrote to memory of 1644 4100 .exe 114 PID 4100 wrote to memory of 4092 4100 .exe 116 PID 4100 wrote to memory of 4092 4100 .exe 116 PID 4100 wrote to memory of 4092 4100 .exe 116 PID 4100 wrote to memory of 4092 4100 .exe 116 PID 4100 wrote to memory of 4092 4100 .exe 116 PID 4100 wrote to memory of 4092 4100 .exe 116 PID 4100 wrote to memory of 4092 4100 .exe 116 PID 4100 wrote to memory of 4092 4100 .exe 116
Processes
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C:\Users\Admin\AppData\Local\Temp\38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe"C:\Users\Admin\AppData\Local\Temp\38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4988 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nxBIuIS.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2796
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nxBIuIS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp586C.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2908
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C:\Users\Admin\AppData\Local\Temp\38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe"C:\Users\Admin\AppData\Local\Temp\38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe"2⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4440 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "" /tr '"C:\Users\Admin\AppData\Roaming\.exe"' & exit3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3864 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "" /tr '"C:\Users\Admin\AppData\Roaming\.exe"'4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4488
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6BE4.tmp.bat""3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3032 -
C:\Windows\SysWOW64\timeout.exetimeout 34⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:3988
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C:\Users\Admin\AppData\Roaming\.exe"C:\Users\Admin\AppData\Roaming\.exe"4⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4100 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nxBIuIS.exe"5⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2172
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nxBIuIS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2DCD.tmp"5⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1644
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C:\Users\Admin\AppData\Roaming\.exe"C:\Users\Admin\AppData\Roaming\.exe"5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4092
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe.log
Filesize1KB
MD5e08f822522c617a40840c62e4b0fb45e
SHA1ae516dca4da5234be6676d3f234c19ec55725be7
SHA256bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7
SHA512894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD5ee6222746b50cc97121ed5c188a34d3a
SHA1810e8836878330a058f60be40fd621077a24565a
SHA256057ea8be82d45992cbe3fa1d10110a01c1003a8d83d88c62c13e6f0fb498d4b5
SHA5122c5684ffced3b0e6098eaf05dbae69c3229d937f8d4404da709e3135ac03f0ac199deb2bf106f3a9b0417f07090dd43a492977e0b7b4526194812b57e88f47e8
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5904b75d49029974177559065b77db0cf
SHA186caf63ff0774dbb6496a52a95ff73e04f812433
SHA2567373062f27fbd09b1e9ee62cd0c11500b5e973eeffcafe338a8af42925581d83
SHA5120628281aaf0aca842008a506e711f552be337502dbd06ee90b84f6d9de60220154a97b5c712b8aaf1892d6a2acd4b2b656376479e4778cbbbed9f9b3dd62115e
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Filesize
144B
MD5faa4d323a349cfe730a62c78db44aa01
SHA12bce8e5648421aec4c384748257f1c8a64bbdf14
SHA25689c62a3a3d18bab0278f5645aecc102813a2d432480fcd78f196fa4b0e6dcc5f
SHA51289a27ab80e8ca1d998a6f47a957a1c6e586f19f101fe12996dd5f529fcb28700be48713ee30011b20ac72250bcb59827b341a82d925c55710d096537b71546ae
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Filesize
694KB
MD532c67f99f3c95ba5e1816ca208f9b723
SHA1c1e29ecea3c87d671448b9dbcc8d8c67b0d14b7e
SHA25638e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7
SHA512578526bda2f08948475726f36bf247aabeb8f3941f95153d6786bc0db6e43bad44502ef1757bae2bb7c6f6bd0a4bd51e9b33ae363be293b75f490a26c03795f8