Analysis
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max time kernel
150s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
13-08-2022 00:30
Behavioral task
behavioral1
Sample
1760-57-0x00000000004B0000-0x00000000004BC000-memory.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
1760-57-0x00000000004B0000-0x00000000004BC000-memory.exe
Resource
win10v2004-20220812-en
General
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Target
1760-57-0x00000000004B0000-0x00000000004BC000-memory.exe
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Size
48KB
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MD5
810b91d8cc3eae4a905ea84e7e856b79
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SHA1
adc1b9cb064e227017206d6eebc05bd2af4cf3bb
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SHA256
5924842a903efbbc3fd42ece1aa2e9405b92fef908442c218b2a27dc0d1328d8
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SHA512
3362ad8a7fdd6d0431fc77b032e9207ec45da82b95fab2fec6aec51c66d162f4efa6ba3a2bc5b6fd105ca37aad922401197116dfe4707aca1c4dcf707ecbf1bb
Malware Config
Extracted
njrat
0.7d
HacKed
easralahtane.ddns.net:3973
4c1e56ee7374309d8fa12b913734d668
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reg_key
4c1e56ee7374309d8fa12b913734d668
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splitter
|'|'|
Signatures
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Executes dropped EXE 1 IoCs
Processes:
Microsoft .exepid process 908 Microsoft .exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
1760-57-0x00000000004B0000-0x00000000004BC000-memory.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Control Panel\International\Geo\Nation 1760-57-0x00000000004B0000-0x00000000004BC000-memory.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
Microsoft .exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\4c1e56ee7374309d8fa12b913734d668 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft .exe\" .." Microsoft .exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\4c1e56ee7374309d8fa12b913734d668 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft .exe\" .." Microsoft .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 35 IoCs
Processes:
Microsoft .exedescription pid process Token: SeDebugPrivilege 908 Microsoft .exe Token: 33 908 Microsoft .exe Token: SeIncBasePriorityPrivilege 908 Microsoft .exe Token: 33 908 Microsoft .exe Token: SeIncBasePriorityPrivilege 908 Microsoft .exe Token: 33 908 Microsoft .exe Token: SeIncBasePriorityPrivilege 908 Microsoft .exe Token: 33 908 Microsoft .exe Token: SeIncBasePriorityPrivilege 908 Microsoft .exe Token: 33 908 Microsoft .exe Token: SeIncBasePriorityPrivilege 908 Microsoft .exe Token: 33 908 Microsoft .exe Token: SeIncBasePriorityPrivilege 908 Microsoft .exe Token: 33 908 Microsoft .exe Token: SeIncBasePriorityPrivilege 908 Microsoft .exe Token: 33 908 Microsoft .exe Token: SeIncBasePriorityPrivilege 908 Microsoft .exe Token: 33 908 Microsoft .exe Token: SeIncBasePriorityPrivilege 908 Microsoft .exe Token: 33 908 Microsoft .exe Token: SeIncBasePriorityPrivilege 908 Microsoft .exe Token: 33 908 Microsoft .exe Token: SeIncBasePriorityPrivilege 908 Microsoft .exe Token: 33 908 Microsoft .exe Token: SeIncBasePriorityPrivilege 908 Microsoft .exe Token: 33 908 Microsoft .exe Token: SeIncBasePriorityPrivilege 908 Microsoft .exe Token: 33 908 Microsoft .exe Token: SeIncBasePriorityPrivilege 908 Microsoft .exe Token: 33 908 Microsoft .exe Token: SeIncBasePriorityPrivilege 908 Microsoft .exe Token: 33 908 Microsoft .exe Token: SeIncBasePriorityPrivilege 908 Microsoft .exe Token: 33 908 Microsoft .exe Token: SeIncBasePriorityPrivilege 908 Microsoft .exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
1760-57-0x00000000004B0000-0x00000000004BC000-memory.exeMicrosoft .exedescription pid process target process PID 4928 wrote to memory of 908 4928 1760-57-0x00000000004B0000-0x00000000004BC000-memory.exe Microsoft .exe PID 4928 wrote to memory of 908 4928 1760-57-0x00000000004B0000-0x00000000004BC000-memory.exe Microsoft .exe PID 4928 wrote to memory of 908 4928 1760-57-0x00000000004B0000-0x00000000004BC000-memory.exe Microsoft .exe PID 908 wrote to memory of 2796 908 Microsoft .exe netsh.exe PID 908 wrote to memory of 2796 908 Microsoft .exe netsh.exe PID 908 wrote to memory of 2796 908 Microsoft .exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1760-57-0x00000000004B0000-0x00000000004BC000-memory.exe"C:\Users\Admin\AppData\Local\Temp\1760-57-0x00000000004B0000-0x00000000004BC000-memory.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Microsoft .exe"C:\Users\Admin\AppData\Local\Temp\Microsoft .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\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Microsoft .exe" "Microsoft .exe" ENABLE3⤵
- 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\Microsoft .exeFilesize
48KB
MD5810b91d8cc3eae4a905ea84e7e856b79
SHA1adc1b9cb064e227017206d6eebc05bd2af4cf3bb
SHA2565924842a903efbbc3fd42ece1aa2e9405b92fef908442c218b2a27dc0d1328d8
SHA5123362ad8a7fdd6d0431fc77b032e9207ec45da82b95fab2fec6aec51c66d162f4efa6ba3a2bc5b6fd105ca37aad922401197116dfe4707aca1c4dcf707ecbf1bb
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C:\Users\Admin\AppData\Local\Temp\Microsoft .exeFilesize
48KB
MD5810b91d8cc3eae4a905ea84e7e856b79
SHA1adc1b9cb064e227017206d6eebc05bd2af4cf3bb
SHA2565924842a903efbbc3fd42ece1aa2e9405b92fef908442c218b2a27dc0d1328d8
SHA5123362ad8a7fdd6d0431fc77b032e9207ec45da82b95fab2fec6aec51c66d162f4efa6ba3a2bc5b6fd105ca37aad922401197116dfe4707aca1c4dcf707ecbf1bb
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memory/908-133-0x0000000000000000-mapping.dmp
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memory/908-137-0x0000000075420000-0x00000000759D1000-memory.dmpFilesize
5.7MB
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memory/908-139-0x0000000075420000-0x00000000759D1000-memory.dmpFilesize
5.7MB
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memory/2796-138-0x0000000000000000-mapping.dmp
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memory/4928-132-0x0000000075420000-0x00000000759D1000-memory.dmpFilesize
5.7MB
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memory/4928-136-0x0000000075420000-0x00000000759D1000-memory.dmpFilesize
5.7MB