Analysis
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max time kernel
149s -
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
26-12-2024 20:51
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 2064 powershell.exe 3920 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 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation .exe -
Executes dropped EXE 2 IoCs
pid Process 3248 .exe 1860 .exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 736 set thread context of 3180 736 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 95 PID 3248 set thread context of 1860 3248 .exe 107 -
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 .exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.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 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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language .exe -
Delays execution with timeout.exe 1 IoCs
pid Process 3764 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 1536 schtasks.exe 2600 schtasks.exe 3360 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 25 IoCs
pid Process 3920 powershell.exe 3920 powershell.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 2064 powershell.exe 2064 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3920 powershell.exe Token: SeDebugPrivilege 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe Token: SeDebugPrivilege 2064 powershell.exe Token: SeDebugPrivilege 1860 .exe -
Suspicious use of WriteProcessMemory 43 IoCs
description pid Process procid_target PID 736 wrote to memory of 3920 736 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 91 PID 736 wrote to memory of 3920 736 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 91 PID 736 wrote to memory of 3920 736 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 91 PID 736 wrote to memory of 1536 736 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 93 PID 736 wrote to memory of 1536 736 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 93 PID 736 wrote to memory of 1536 736 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 93 PID 736 wrote to memory of 3180 736 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 95 PID 736 wrote to memory of 3180 736 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 95 PID 736 wrote to memory of 3180 736 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 95 PID 736 wrote to memory of 3180 736 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 95 PID 736 wrote to memory of 3180 736 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 95 PID 736 wrote to memory of 3180 736 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 95 PID 736 wrote to memory of 3180 736 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 95 PID 736 wrote to memory of 3180 736 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 95 PID 3180 wrote to memory of 4552 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 96 PID 3180 wrote to memory of 4552 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 96 PID 3180 wrote to memory of 4552 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 96 PID 3180 wrote to memory of 2164 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 98 PID 3180 wrote to memory of 2164 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 98 PID 3180 wrote to memory of 2164 3180 38e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7.exe 98 PID 2164 wrote to memory of 3764 2164 cmd.exe 100 PID 2164 wrote to memory of 3764 2164 cmd.exe 100 PID 2164 wrote to memory of 3764 2164 cmd.exe 100 PID 4552 wrote to memory of 2600 4552 cmd.exe 101 PID 4552 wrote to memory of 2600 4552 cmd.exe 101 PID 4552 wrote to memory of 2600 4552 cmd.exe 101 PID 2164 wrote to memory of 3248 2164 cmd.exe 102 PID 2164 wrote to memory of 3248 2164 cmd.exe 102 PID 2164 wrote to memory of 3248 2164 cmd.exe 102 PID 3248 wrote to memory of 2064 3248 .exe 103 PID 3248 wrote to memory of 2064 3248 .exe 103 PID 3248 wrote to memory of 2064 3248 .exe 103 PID 3248 wrote to memory of 3360 3248 .exe 105 PID 3248 wrote to memory of 3360 3248 .exe 105 PID 3248 wrote to memory of 3360 3248 .exe 105 PID 3248 wrote to memory of 1860 3248 .exe 107 PID 3248 wrote to memory of 1860 3248 .exe 107 PID 3248 wrote to memory of 1860 3248 .exe 107 PID 3248 wrote to memory of 1860 3248 .exe 107 PID 3248 wrote to memory of 1860 3248 .exe 107 PID 3248 wrote to memory of 1860 3248 .exe 107 PID 3248 wrote to memory of 1860 3248 .exe 107 PID 3248 wrote to memory of 1860 3248 .exe 107
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:736 -
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:3920
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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\tmp28E0.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1536
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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:3180 -
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:4552 -
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:2600
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3D23.tmp.bat""3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2164 -
C:\Windows\SysWOW64\timeout.exetimeout 34⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:3764
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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:3248 -
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:2064
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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\tmp93.tmp"5⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3360
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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:1860
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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
MD5d0e93b37e0ce6e5c761bb8896495de85
SHA1a46341b42c3755e9faed4d9ea3af7854140b6a2f
SHA256e92b5d3912f4d447447e94dc41a4a150acfab6132569af1dfa07d51bea02c25c
SHA5123b8d3d97e849a061c9196c79439baaca62637c95e8e78d5e26c3a79cb6a3d14d5f5c8144d990a24feb0bdeabaad64842fe8a64d0ba3e1062e03955c98966988a
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5ecf0b0aa64d972cfa4c030ad355ea339
SHA1cb199c224fefa5526020f98b9fc253e0e3567138
SHA2562faaa0aadbc36c632e31dccdab6c1f4ec8df455f6891fd6008d578e2508e8700
SHA512c7383bab30015ac4a465b06ae25209d8bbffd0aafd206767e93630454842c7f6259341e7e5b1177c6964556bb2f16f75dbe00df71fde6fb4a84295f37df66dc8
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Filesize
144B
MD5f0b2e473a7d6fad525dd07aa91ffd8c4
SHA19748003bfa14f5f8cbe84125da9eae7557e16881
SHA2560b7292c0b487d4df61a2b486ca1f7b636f20579d0cc48f8efc50a0f51e0cd5e7
SHA5123312ff6e73b21587f36ddd3a0a64cc6db51ccd63854fda596230aac6546dc8ff17fb8d0643439d5ace44678a23efcf1ac0c4d477cf2321b8c5d64014a8bca217
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Filesize
694KB
MD532c67f99f3c95ba5e1816ca208f9b723
SHA1c1e29ecea3c87d671448b9dbcc8d8c67b0d14b7e
SHA25638e1bbae005365e92cf80aa6ef199d5107af57fde3afb02c31dc1bde875c68f7
SHA512578526bda2f08948475726f36bf247aabeb8f3941f95153d6786bc0db6e43bad44502ef1757bae2bb7c6f6bd0a4bd51e9b33ae363be293b75f490a26c03795f8