Analysis
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max time kernel
150s -
max time network
34s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
23-11-2022 15:49
Behavioral task
behavioral1
Sample
d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exe
Resource
win10v2004-20221111-en
General
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Target
d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exe
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Size
23KB
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MD5
5a8b08e5b56260b53bbf1222e3dda7b3
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SHA1
f035b6f669365f18329406c036d9428019cae1c4
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SHA256
d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442
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SHA512
6236b614444c293c8aeae0bd16d33ac48c6e8e299ff4004e3448a1a2a048c992a995012d94b0f0c767cdb686ded8296a41ec219d5b0c4ffd29fa73912602a706
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SSDEEP
384:zQeCo2zmZbQHkJeCdUwBvQ61gjuQBnB9mRvR6JZlbw8hqIusZzZHjd:k5yBVd7RpcnuC
Malware Config
Extracted
njrat
0.7d
HacKed
sahinerol1.no-ip.org:1221
dc3fcc213130c10fcc359eeec1ff3b0f
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reg_key
dc3fcc213130c10fcc359eeec1ff3b0f
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splitter
|'|'|
Signatures
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Executes dropped EXE 1 IoCs
Processes:
server.exepid process 1056 server.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Loads dropped DLL 1 IoCs
Processes:
d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exepid process 1712 d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
server.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\dc3fcc213130c10fcc359eeec1ff3b0f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." server.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\dc3fcc213130c10fcc359eeec1ff3b0f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." server.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 21 IoCs
Processes:
server.exedescription pid process Token: SeDebugPrivilege 1056 server.exe Token: 33 1056 server.exe Token: SeIncBasePriorityPrivilege 1056 server.exe Token: 33 1056 server.exe Token: SeIncBasePriorityPrivilege 1056 server.exe Token: 33 1056 server.exe Token: SeIncBasePriorityPrivilege 1056 server.exe Token: 33 1056 server.exe Token: SeIncBasePriorityPrivilege 1056 server.exe Token: 33 1056 server.exe Token: SeIncBasePriorityPrivilege 1056 server.exe Token: 33 1056 server.exe Token: SeIncBasePriorityPrivilege 1056 server.exe Token: 33 1056 server.exe Token: SeIncBasePriorityPrivilege 1056 server.exe Token: 33 1056 server.exe Token: SeIncBasePriorityPrivilege 1056 server.exe Token: 33 1056 server.exe Token: SeIncBasePriorityPrivilege 1056 server.exe Token: 33 1056 server.exe Token: SeIncBasePriorityPrivilege 1056 server.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exeserver.exedescription pid process target process PID 1712 wrote to memory of 1056 1712 d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exe server.exe PID 1712 wrote to memory of 1056 1712 d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exe server.exe PID 1712 wrote to memory of 1056 1712 d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exe server.exe PID 1712 wrote to memory of 1056 1712 d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exe server.exe PID 1056 wrote to memory of 1124 1056 server.exe netsh.exe PID 1056 wrote to memory of 1124 1056 server.exe netsh.exe PID 1056 wrote to memory of 1124 1056 server.exe netsh.exe PID 1056 wrote to memory of 1124 1056 server.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exe"C:\Users\Admin\AppData\Local\Temp\d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1712 -
C:\Users\Admin\AppData\Local\Temp\server.exe"C:\Users\Admin\AppData\Local\Temp\server.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1056 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
PID:1124
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\server.exeFilesize
23KB
MD55a8b08e5b56260b53bbf1222e3dda7b3
SHA1f035b6f669365f18329406c036d9428019cae1c4
SHA256d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442
SHA5126236b614444c293c8aeae0bd16d33ac48c6e8e299ff4004e3448a1a2a048c992a995012d94b0f0c767cdb686ded8296a41ec219d5b0c4ffd29fa73912602a706
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C:\Users\Admin\AppData\Local\Temp\server.exeFilesize
23KB
MD55a8b08e5b56260b53bbf1222e3dda7b3
SHA1f035b6f669365f18329406c036d9428019cae1c4
SHA256d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442
SHA5126236b614444c293c8aeae0bd16d33ac48c6e8e299ff4004e3448a1a2a048c992a995012d94b0f0c767cdb686ded8296a41ec219d5b0c4ffd29fa73912602a706
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\Users\Admin\AppData\Local\Temp\server.exeFilesize
23KB
MD55a8b08e5b56260b53bbf1222e3dda7b3
SHA1f035b6f669365f18329406c036d9428019cae1c4
SHA256d5f936e0948611fc301c4ca8b85fc1012356a3f6f83e09e7c959087a4d5d6442
SHA5126236b614444c293c8aeae0bd16d33ac48c6e8e299ff4004e3448a1a2a048c992a995012d94b0f0c767cdb686ded8296a41ec219d5b0c4ffd29fa73912602a706
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memory/1056-57-0x0000000000000000-mapping.dmp
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memory/1056-62-0x0000000074610000-0x0000000074BBB000-memory.dmpFilesize
5.7MB
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memory/1056-65-0x0000000074610000-0x0000000074BBB000-memory.dmpFilesize
5.7MB
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memory/1124-63-0x0000000000000000-mapping.dmp
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memory/1712-54-0x0000000075FE1000-0x0000000075FE3000-memory.dmpFilesize
8KB
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memory/1712-55-0x0000000074610000-0x0000000074BBB000-memory.dmpFilesize
5.7MB
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memory/1712-61-0x0000000074610000-0x0000000074BBB000-memory.dmpFilesize
5.7MB