Analysis
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max time kernel
150s -
max time network
142s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
28-02-2021 07:03
Static task
static1
Behavioral task
behavioral1
Sample
b62b55b6ffff01b6540348967c9f7b1361ffb5e860c2559ad00ef77036685277.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
b62b55b6ffff01b6540348967c9f7b1361ffb5e860c2559ad00ef77036685277.exe
Resource
win10v20201028
General
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Target
b62b55b6ffff01b6540348967c9f7b1361ffb5e860c2559ad00ef77036685277.exe
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Size
26KB
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MD5
043335fcd3a8b4b6d85861b9e5c27b74
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SHA1
567bb55395160fd165bdd6ba17176399cb54bc58
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SHA256
b62b55b6ffff01b6540348967c9f7b1361ffb5e860c2559ad00ef77036685277
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SHA512
426521fc7888079b97e91a3a4d4b1bcc29f5bc0a914ded979970f3b22c625866c26123ff9f0c6baca85abb5fbd5e9b0d053277402d111b343fc11b87fba93529
Malware Config
Extracted
njrat
0.7d
HacKed
192.168.7.108:1177
017c060db3a2fd47416ea61ee39f9282
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reg_key
017c060db3a2fd47416ea61ee39f9282
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splitter
|'|'|
Signatures
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Executes dropped EXE 1 IoCs
Processes:
server.exepid process 1840 server.exe -
Modifies Windows Firewall 1 TTPs
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
server.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\017c060db3a2fd47416ea61ee39f9282 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." server.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\017c060db3a2fd47416ea61ee39f9282 = "\"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 31 IoCs
Processes:
server.exedescription pid process Token: SeDebugPrivilege 1840 server.exe Token: 33 1840 server.exe Token: SeIncBasePriorityPrivilege 1840 server.exe Token: 33 1840 server.exe Token: SeIncBasePriorityPrivilege 1840 server.exe Token: 33 1840 server.exe Token: SeIncBasePriorityPrivilege 1840 server.exe Token: 33 1840 server.exe Token: SeIncBasePriorityPrivilege 1840 server.exe Token: 33 1840 server.exe Token: SeIncBasePriorityPrivilege 1840 server.exe Token: 33 1840 server.exe Token: SeIncBasePriorityPrivilege 1840 server.exe Token: 33 1840 server.exe Token: SeIncBasePriorityPrivilege 1840 server.exe Token: 33 1840 server.exe Token: SeIncBasePriorityPrivilege 1840 server.exe Token: 33 1840 server.exe Token: SeIncBasePriorityPrivilege 1840 server.exe Token: 33 1840 server.exe Token: SeIncBasePriorityPrivilege 1840 server.exe Token: 33 1840 server.exe Token: SeIncBasePriorityPrivilege 1840 server.exe Token: 33 1840 server.exe Token: SeIncBasePriorityPrivilege 1840 server.exe Token: 33 1840 server.exe Token: SeIncBasePriorityPrivilege 1840 server.exe Token: 33 1840 server.exe Token: SeIncBasePriorityPrivilege 1840 server.exe Token: 33 1840 server.exe Token: SeIncBasePriorityPrivilege 1840 server.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
b62b55b6ffff01b6540348967c9f7b1361ffb5e860c2559ad00ef77036685277.exeserver.exedescription pid process target process PID 1072 wrote to memory of 1840 1072 b62b55b6ffff01b6540348967c9f7b1361ffb5e860c2559ad00ef77036685277.exe server.exe PID 1072 wrote to memory of 1840 1072 b62b55b6ffff01b6540348967c9f7b1361ffb5e860c2559ad00ef77036685277.exe server.exe PID 1072 wrote to memory of 1840 1072 b62b55b6ffff01b6540348967c9f7b1361ffb5e860c2559ad00ef77036685277.exe server.exe PID 1840 wrote to memory of 1916 1840 server.exe netsh.exe PID 1840 wrote to memory of 1916 1840 server.exe netsh.exe PID 1840 wrote to memory of 1916 1840 server.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b62b55b6ffff01b6540348967c9f7b1361ffb5e860c2559ad00ef77036685277.exe"C:\Users\Admin\AppData\Local\Temp\b62b55b6ffff01b6540348967c9f7b1361ffb5e860c2559ad00ef77036685277.exe"1⤵
- Suspicious use of WriteProcessMemory
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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
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C:\Windows\system32\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\server.exeMD5
043335fcd3a8b4b6d85861b9e5c27b74
SHA1567bb55395160fd165bdd6ba17176399cb54bc58
SHA256b62b55b6ffff01b6540348967c9f7b1361ffb5e860c2559ad00ef77036685277
SHA512426521fc7888079b97e91a3a4d4b1bcc29f5bc0a914ded979970f3b22c625866c26123ff9f0c6baca85abb5fbd5e9b0d053277402d111b343fc11b87fba93529
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C:\Users\Admin\AppData\Local\Temp\server.exeMD5
043335fcd3a8b4b6d85861b9e5c27b74
SHA1567bb55395160fd165bdd6ba17176399cb54bc58
SHA256b62b55b6ffff01b6540348967c9f7b1361ffb5e860c2559ad00ef77036685277
SHA512426521fc7888079b97e91a3a4d4b1bcc29f5bc0a914ded979970f3b22c625866c26123ff9f0c6baca85abb5fbd5e9b0d053277402d111b343fc11b87fba93529
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memory/1072-2-0x000007FEF53B0000-0x000007FEF5D9C000-memory.dmpFilesize
9.9MB
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memory/1072-3-0x0000000000040000-0x0000000000041000-memory.dmpFilesize
4KB
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memory/1072-5-0x0000000000370000-0x0000000000376000-memory.dmpFilesize
24KB
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memory/1072-6-0x000000001A9C0000-0x000000001A9C2000-memory.dmpFilesize
8KB
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memory/1840-7-0x0000000000000000-mapping.dmp
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memory/1840-10-0x000007FEF53B0000-0x000007FEF5D9C000-memory.dmpFilesize
9.9MB
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memory/1840-11-0x0000000001280000-0x0000000001281000-memory.dmpFilesize
4KB
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memory/1840-14-0x0000000001180000-0x0000000001182000-memory.dmpFilesize
8KB
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memory/1916-15-0x0000000000000000-mapping.dmp
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memory/1916-16-0x000007FEFC011000-0x000007FEFC013000-memory.dmpFilesize
8KB