Analysis
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max time kernel
150s -
max time network
57s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
20-05-2022 23:38
Static task
static1
Behavioral task
behavioral1
Sample
e0f2ca64adfd552026bccf9999757ad7a18e2b483598bfa87936dc573bbdcb78.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
e0f2ca64adfd552026bccf9999757ad7a18e2b483598bfa87936dc573bbdcb78.exe
Resource
win10v2004-20220414-en
General
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Target
e0f2ca64adfd552026bccf9999757ad7a18e2b483598bfa87936dc573bbdcb78.exe
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Size
309KB
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MD5
b4b37e58be879d3d2db7ed38e493cb90
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SHA1
64d18c155ffcfe5f5a92e2e9167660454abb8dba
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SHA256
e0f2ca64adfd552026bccf9999757ad7a18e2b483598bfa87936dc573bbdcb78
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SHA512
62e8678a51e39df456f3a8119c727a8378de880c5ff88ef4ef91702dbbe821a1c6c1f985f5e77c9819f49367c1792fc6eb05c3dfd0b4dcebd1f916b20f27d500
Malware Config
Extracted
njrat
0.7d
فاكك يو
windows-background.ddns.net:1010
b91787a4994aec6df4185bd0dc4cd953
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reg_key
b91787a4994aec6df4185bd0dc4cd953
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splitter
|'|'|
Signatures
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Executes dropped EXE 1 IoCs
Processes:
svchost.exepid process 1728 svchost.exe -
Modifies Windows Firewall 1 TTPs
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Drops startup file 2 IoCs
Processes:
svchost.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b91787a4994aec6df4185bd0dc4cd953.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b91787a4994aec6df4185bd0dc4cd953.exe svchost.exe -
Loads dropped DLL 1 IoCs
Processes:
e0f2ca64adfd552026bccf9999757ad7a18e2b483598bfa87936dc573bbdcb78.exepid process 904 e0f2ca64adfd552026bccf9999757ad7a18e2b483598bfa87936dc573bbdcb78.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
svchost.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\b91787a4994aec6df4185bd0dc4cd953 = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\" .." svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\b91787a4994aec6df4185bd0dc4cd953 = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\" .." svchost.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:
svchost.exedescription pid process Token: SeDebugPrivilege 1728 svchost.exe Token: 33 1728 svchost.exe Token: SeIncBasePriorityPrivilege 1728 svchost.exe Token: 33 1728 svchost.exe Token: SeIncBasePriorityPrivilege 1728 svchost.exe Token: 33 1728 svchost.exe Token: SeIncBasePriorityPrivilege 1728 svchost.exe Token: 33 1728 svchost.exe Token: SeIncBasePriorityPrivilege 1728 svchost.exe Token: 33 1728 svchost.exe Token: SeIncBasePriorityPrivilege 1728 svchost.exe Token: 33 1728 svchost.exe Token: SeIncBasePriorityPrivilege 1728 svchost.exe Token: 33 1728 svchost.exe Token: SeIncBasePriorityPrivilege 1728 svchost.exe Token: 33 1728 svchost.exe Token: SeIncBasePriorityPrivilege 1728 svchost.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
e0f2ca64adfd552026bccf9999757ad7a18e2b483598bfa87936dc573bbdcb78.exesvchost.exedescription pid process target process PID 904 wrote to memory of 1728 904 e0f2ca64adfd552026bccf9999757ad7a18e2b483598bfa87936dc573bbdcb78.exe svchost.exe PID 904 wrote to memory of 1728 904 e0f2ca64adfd552026bccf9999757ad7a18e2b483598bfa87936dc573bbdcb78.exe svchost.exe PID 904 wrote to memory of 1728 904 e0f2ca64adfd552026bccf9999757ad7a18e2b483598bfa87936dc573bbdcb78.exe svchost.exe PID 904 wrote to memory of 1728 904 e0f2ca64adfd552026bccf9999757ad7a18e2b483598bfa87936dc573bbdcb78.exe svchost.exe PID 1728 wrote to memory of 1780 1728 svchost.exe netsh.exe PID 1728 wrote to memory of 1780 1728 svchost.exe netsh.exe PID 1728 wrote to memory of 1780 1728 svchost.exe netsh.exe PID 1728 wrote to memory of 1780 1728 svchost.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\e0f2ca64adfd552026bccf9999757ad7a18e2b483598bfa87936dc573bbdcb78.exe"C:\Users\Admin\AppData\Local\Temp\e0f2ca64adfd552026bccf9999757ad7a18e2b483598bfa87936dc573bbdcb78.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- 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\svchost.exe" "svchost.exe" ENABLE3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\svchost.exeFilesize
309KB
MD5b4b37e58be879d3d2db7ed38e493cb90
SHA164d18c155ffcfe5f5a92e2e9167660454abb8dba
SHA256e0f2ca64adfd552026bccf9999757ad7a18e2b483598bfa87936dc573bbdcb78
SHA51262e8678a51e39df456f3a8119c727a8378de880c5ff88ef4ef91702dbbe821a1c6c1f985f5e77c9819f49367c1792fc6eb05c3dfd0b4dcebd1f916b20f27d500
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C:\Users\Admin\AppData\Roaming\svchost.exeFilesize
309KB
MD5b4b37e58be879d3d2db7ed38e493cb90
SHA164d18c155ffcfe5f5a92e2e9167660454abb8dba
SHA256e0f2ca64adfd552026bccf9999757ad7a18e2b483598bfa87936dc573bbdcb78
SHA51262e8678a51e39df456f3a8119c727a8378de880c5ff88ef4ef91702dbbe821a1c6c1f985f5e77c9819f49367c1792fc6eb05c3dfd0b4dcebd1f916b20f27d500
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\Users\Admin\AppData\Roaming\svchost.exeFilesize
309KB
MD5b4b37e58be879d3d2db7ed38e493cb90
SHA164d18c155ffcfe5f5a92e2e9167660454abb8dba
SHA256e0f2ca64adfd552026bccf9999757ad7a18e2b483598bfa87936dc573bbdcb78
SHA51262e8678a51e39df456f3a8119c727a8378de880c5ff88ef4ef91702dbbe821a1c6c1f985f5e77c9819f49367c1792fc6eb05c3dfd0b4dcebd1f916b20f27d500
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memory/904-54-0x0000000000E70000-0x0000000000EC4000-memory.dmpFilesize
336KB
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memory/904-55-0x00000000003C0000-0x00000000003CC000-memory.dmpFilesize
48KB
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memory/904-56-0x00000000764C1000-0x00000000764C3000-memory.dmpFilesize
8KB
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memory/1728-58-0x0000000000000000-mapping.dmp
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memory/1728-61-0x0000000000B30000-0x0000000000B84000-memory.dmpFilesize
336KB
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memory/1780-62-0x0000000000000000-mapping.dmp