Analysis
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max time kernel
150s -
max time network
174s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
25-11-2022 07:40
Static task
static1
Behavioral task
behavioral1
Sample
73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191.exe
Resource
win10v2004-20220812-en
General
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Target
73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191.exe
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Size
219KB
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MD5
0e596efe9a8bbb4d233ff54ac93c1383
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SHA1
e8e9396a91e551fb43eb43e33369bf0416bdbabe
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SHA256
73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191
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SHA512
e70e064fe15699e06c65ae83ff0532c74c94e488e4303b4144d3cc17eae10bfb1742b5f45aedf3f1d6f83734ce34f75a5631bfe285fa1edc5da3cb15780daa31
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SSDEEP
6144:zV8xLIQ/j6TIZNhGWaOF33OWSkp1jyC37:xoMHUHKOxO+
Malware Config
Extracted
njrat
0.7d
Hacked
kissme1988.no-ip.biz:5552
dc57475995c921da5a2603cdc0101794
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reg_key
dc57475995c921da5a2603cdc0101794
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splitter
|'|'|
Signatures
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Executes dropped EXE 2 IoCs
Processes:
819.exesystemBL.exepid process 992 819.exe 468 systemBL.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Drops startup file 2 IoCs
Processes:
systemBL.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dc57475995c921da5a2603cdc0101794.exe systemBL.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dc57475995c921da5a2603cdc0101794.exe systemBL.exe -
Loads dropped DLL 1 IoCs
Processes:
819.exepid process 992 819.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
systemBL.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\dc57475995c921da5a2603cdc0101794 = "\"C:\\Users\\Admin\\AppData\\Roaming\\systemBL.exe\" .." systemBL.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\dc57475995c921da5a2603cdc0101794 = "\"C:\\Users\\Admin\\AppData\\Roaming\\systemBL.exe\" .." systemBL.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of AdjustPrivilegeToken 17 IoCs
Processes:
systemBL.exedescription pid process Token: SeDebugPrivilege 468 systemBL.exe Token: 33 468 systemBL.exe Token: SeIncBasePriorityPrivilege 468 systemBL.exe Token: 33 468 systemBL.exe Token: SeIncBasePriorityPrivilege 468 systemBL.exe Token: 33 468 systemBL.exe Token: SeIncBasePriorityPrivilege 468 systemBL.exe Token: 33 468 systemBL.exe Token: SeIncBasePriorityPrivilege 468 systemBL.exe Token: 33 468 systemBL.exe Token: SeIncBasePriorityPrivilege 468 systemBL.exe Token: 33 468 systemBL.exe Token: SeIncBasePriorityPrivilege 468 systemBL.exe Token: 33 468 systemBL.exe Token: SeIncBasePriorityPrivilege 468 systemBL.exe Token: 33 468 systemBL.exe Token: SeIncBasePriorityPrivilege 468 systemBL.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191.exe819.exesystemBL.exedescription pid process target process PID 112 wrote to memory of 992 112 73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191.exe 819.exe PID 112 wrote to memory of 992 112 73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191.exe 819.exe PID 112 wrote to memory of 992 112 73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191.exe 819.exe PID 112 wrote to memory of 992 112 73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191.exe 819.exe PID 992 wrote to memory of 468 992 819.exe systemBL.exe PID 992 wrote to memory of 468 992 819.exe systemBL.exe PID 992 wrote to memory of 468 992 819.exe systemBL.exe PID 992 wrote to memory of 468 992 819.exe systemBL.exe PID 468 wrote to memory of 1084 468 systemBL.exe netsh.exe PID 468 wrote to memory of 1084 468 systemBL.exe netsh.exe PID 468 wrote to memory of 1084 468 systemBL.exe netsh.exe PID 468 wrote to memory of 1084 468 systemBL.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191.exe"C:\Users\Admin\AppData\Local\Temp\73a15cef6999806e930285b078c192a8c5ec8a496f7d77c60fee53ac11865191.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\819.exeC:\Users\Admin\AppData\Local\Temp\819.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\systemBL.exe"C:\Users\Admin\AppData\Roaming\systemBL.exe"3⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\systemBL.exe" "systemBL.exe" ENABLE4⤵
- Modifies Windows Firewall
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\819.exeFilesize
23KB
MD59c480814d52d00cddc8a228e3a700175
SHA1e7c78acef70734e8555bbf136cfd2b864ec8f2bf
SHA256d4b79df1194c74f4d7b4d9abfaa78e316835a596881e7145cbaecc197fa2847c
SHA5121e732e2a537ba952febf5be039db77f024afced0886d17fb009098ba730976a1efb03edfa415e730d876bd746778524e76dd31e52786c81fd505c47b83d2a202
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C:\Users\Admin\AppData\Local\Temp\819.exeFilesize
23KB
MD59c480814d52d00cddc8a228e3a700175
SHA1e7c78acef70734e8555bbf136cfd2b864ec8f2bf
SHA256d4b79df1194c74f4d7b4d9abfaa78e316835a596881e7145cbaecc197fa2847c
SHA5121e732e2a537ba952febf5be039db77f024afced0886d17fb009098ba730976a1efb03edfa415e730d876bd746778524e76dd31e52786c81fd505c47b83d2a202
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C:\Users\Admin\AppData\Roaming\systemBL.exeFilesize
23KB
MD59c480814d52d00cddc8a228e3a700175
SHA1e7c78acef70734e8555bbf136cfd2b864ec8f2bf
SHA256d4b79df1194c74f4d7b4d9abfaa78e316835a596881e7145cbaecc197fa2847c
SHA5121e732e2a537ba952febf5be039db77f024afced0886d17fb009098ba730976a1efb03edfa415e730d876bd746778524e76dd31e52786c81fd505c47b83d2a202
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C:\Users\Admin\AppData\Roaming\systemBL.exeFilesize
23KB
MD59c480814d52d00cddc8a228e3a700175
SHA1e7c78acef70734e8555bbf136cfd2b864ec8f2bf
SHA256d4b79df1194c74f4d7b4d9abfaa78e316835a596881e7145cbaecc197fa2847c
SHA5121e732e2a537ba952febf5be039db77f024afced0886d17fb009098ba730976a1efb03edfa415e730d876bd746778524e76dd31e52786c81fd505c47b83d2a202
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\Users\Admin\AppData\Roaming\systemBL.exeFilesize
23KB
MD59c480814d52d00cddc8a228e3a700175
SHA1e7c78acef70734e8555bbf136cfd2b864ec8f2bf
SHA256d4b79df1194c74f4d7b4d9abfaa78e316835a596881e7145cbaecc197fa2847c
SHA5121e732e2a537ba952febf5be039db77f024afced0886d17fb009098ba730976a1efb03edfa415e730d876bd746778524e76dd31e52786c81fd505c47b83d2a202
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memory/112-54-0x0000000000A60000-0x0000000000A9E000-memory.dmpFilesize
248KB
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memory/468-61-0x0000000000000000-mapping.dmp
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memory/468-66-0x0000000074C30000-0x00000000751DB000-memory.dmpFilesize
5.7MB
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memory/468-68-0x0000000074C30000-0x00000000751DB000-memory.dmpFilesize
5.7MB
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memory/992-58-0x0000000075E31000-0x0000000075E33000-memory.dmpFilesize
8KB
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memory/992-59-0x0000000074C30000-0x00000000751DB000-memory.dmpFilesize
5.7MB
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memory/992-55-0x0000000000000000-mapping.dmp
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memory/992-65-0x0000000074C30000-0x00000000751DB000-memory.dmpFilesize
5.7MB
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memory/1084-67-0x0000000000000000-mapping.dmp