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Analysis
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max time kernel
897s -
max time network
894s -
platform
windows10-2004_x64 -
resource
win10v2004-20250207-fr -
resource tags
arch:x64arch:x86image:win10v2004-20250207-frlocale:fr-fros:windows10-2004-x64systemwindows -
submitted
08/02/2025, 11:36
Behavioral task
behavioral1
Sample
nkth.exe
Resource
win10ltsc2021-20250207-fr
Behavioral task
behavioral2
Sample
nkth.exe
Resource
win10v2004-20250207-fr
Behavioral task
behavioral3
Sample
nkth.exe
Resource
win10ltsc2021-20250207-fr
Behavioral task
behavioral4
Sample
nkth.exe
Resource
win11-20250207-fr
General
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Target
nkth.exe
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Size
55KB
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MD5
33644523cb6a6c01bbf2dd5c3a97aafc
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SHA1
7fd0d35a09a32693d30ffdb49ecd69c1229d2a20
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SHA256
e451ebc803766d533d92baf458485284fb64cc3e8d4491cf410ea7fb2d5ded45
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SHA512
43bddd6e1cd6acf040fec6d2b51afd86daa0f5f8ef7990b7dab2e9a42bdcdec5fede30d0510e6fdfd1cb08a4028e5057061f7c4e91a8b5a300ae1af9505cef2b
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SSDEEP
1536:5EOADn6cpNPmSpVcDGiwsNMDdXExI3pmsm:bADn6cPzLcDGiwsNMDdXExI3pm
Malware Config
Signatures
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Njrat family
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System Location Discovery: System Language Discovery 1 TTPs 3 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 nkth.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MicrosoftEdgeUpdate.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MicrosoftEdgeUpdate.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 4052 MicrosoftEdgeUpdate.exe 1584 MicrosoftEdgeUpdate.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2364 nkth.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe Token: SeIncBasePriorityPrivilege 2364 nkth.exe Token: 33 2364 nkth.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\nkth.exe"C:\Users\Admin\AppData\Local\Temp\nkth.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2364
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C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIwIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MzQwNjQ4MzE0Ii8-PC9hcHA-PC9yZXF1ZXN0Pg1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4052
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C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-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-PHVwZGF0ZWNoZWNrLz48cGluZyBhY3RpdmU9IjEiIGE9IjEiIHI9IjEiIGFkPSI2NjEyIiByZD0iNjYxMiIgcGluZ19mcmVzaG5lc3M9Ins2MEM3NUFFOC1ERkRBLTRGMUEtOENENy02MTA2Mjk3RjI2REN9Ii8-PC9hcHA-PGFwcCBhcHBpZD0ie0YzMDE3MjI2LUZFMkEtNDI5NS04QkRGLTAwQzNBOUE3RTRDNX0iIHZlcnNpb249IjEzMi4wLjI5NTcuMTQwIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSIiIGJyYW5kPSJHR0xTIiBjbGllbnQ9IiIgaW5zdGFsbGFnZT0iMCIgaW5zdGFsbGRhdGU9IjY2MDgiIGNvaG9ydD0icnJmQDAuMTQiPjx1cGRhdGVjaGVjay8-PHBpbmcgcj0iMSIgcmQ9IjY2MTIiIHBpbmdfZnJlc2huZXNzPSJ7M0QzQjg3NjEtQzUwNi00RDIwLUI0NTktNjYzN0JFMDA2ODIzfSIvPjwvYXBwPjwvcmVxdWVzdD41⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:1584
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C:\Windows\System32\Upfc.exeC:\Windows\System32\Upfc.exe /launchtype periodic /cv GkF6xFvjhEOG8MhTODWl4Q.01⤵PID:4504
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
443KB
MD5e4b1b5d15247cba497084adaa2898cdb
SHA1b7c80c44d2712ffad99eb9ae9308b311d2154c82
SHA256f0cba3d832655a8a2fb3fd3eeb671c8f87c1bf4c4ba1b0b1cf8f1d53f4242ede
SHA512c0501f3cde084133b47d256846e126cbd60365515a40774ad4548e44a5ddb88de5b47b172efc6afa15ffb81f3a81c733dbdbc448f8239e5a15be82241f273249