Analysis
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max time kernel
151s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
04-07-2022 12:21
Behavioral task
behavioral1
Sample
c0be73cb39b423805193433ad585f5b8.exe
Resource
win7-20220414-en
General
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Target
c0be73cb39b423805193433ad585f5b8.exe
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Size
37KB
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MD5
c0be73cb39b423805193433ad585f5b8
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SHA1
4993129df55612315d66530cf1c8f8d4a16b7fda
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SHA256
de3eb03ecb262ac7d7e39fc1a746d03fe05586aaa8af9e9090fe6bbdd963094a
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SHA512
38d9ddf70d56fa4c6c77097e7158ccf0672efa303e423712fc31417e9f6947d541ff0bc87387636801fe6fac8eda403ccf5a55e9ee20cea04bf32ca7ae921dfb
Malware Config
Extracted
njrat
im523
HacKed
5.tcp.eu.ngrok.io:14322
ea1a5a5888621f5dfaaef310d1d638c8
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reg_key
ea1a5a5888621f5dfaaef310d1d638c8
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splitter
|'|'|
Signatures
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suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
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Executes dropped EXE 1 IoCs
Processes:
Microsoft.exepid process 3136 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:
c0be73cb39b423805193433ad585f5b8.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation c0be73cb39b423805193433ad585f5b8.exe -
Drops startup file 2 IoCs
Processes:
Microsoft.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ea1a5a5888621f5dfaaef310d1d638c8.exe Microsoft.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ea1a5a5888621f5dfaaef310d1d638c8.exe Microsoft.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
Microsoft.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ea1a5a5888621f5dfaaef310d1d638c8 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft.exe\" .." Microsoft.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ea1a5a5888621f5dfaaef310d1d638c8 = "\"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 behavior: EnumeratesProcesses 64 IoCs
Processes:
Microsoft.exepid process 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe 3136 Microsoft.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Microsoft.exepid process 3136 Microsoft.exe -
Suspicious use of AdjustPrivilegeToken 33 IoCs
Processes:
Microsoft.exedescription pid process Token: SeDebugPrivilege 3136 Microsoft.exe Token: 33 3136 Microsoft.exe Token: SeIncBasePriorityPrivilege 3136 Microsoft.exe Token: 33 3136 Microsoft.exe Token: SeIncBasePriorityPrivilege 3136 Microsoft.exe Token: 33 3136 Microsoft.exe Token: SeIncBasePriorityPrivilege 3136 Microsoft.exe Token: 33 3136 Microsoft.exe Token: SeIncBasePriorityPrivilege 3136 Microsoft.exe Token: 33 3136 Microsoft.exe Token: SeIncBasePriorityPrivilege 3136 Microsoft.exe Token: 33 3136 Microsoft.exe Token: SeIncBasePriorityPrivilege 3136 Microsoft.exe Token: 33 3136 Microsoft.exe Token: SeIncBasePriorityPrivilege 3136 Microsoft.exe Token: 33 3136 Microsoft.exe Token: SeIncBasePriorityPrivilege 3136 Microsoft.exe Token: 33 3136 Microsoft.exe Token: SeIncBasePriorityPrivilege 3136 Microsoft.exe Token: 33 3136 Microsoft.exe Token: SeIncBasePriorityPrivilege 3136 Microsoft.exe Token: 33 3136 Microsoft.exe Token: SeIncBasePriorityPrivilege 3136 Microsoft.exe Token: 33 3136 Microsoft.exe Token: SeIncBasePriorityPrivilege 3136 Microsoft.exe Token: 33 3136 Microsoft.exe Token: SeIncBasePriorityPrivilege 3136 Microsoft.exe Token: 33 3136 Microsoft.exe Token: SeIncBasePriorityPrivilege 3136 Microsoft.exe Token: 33 3136 Microsoft.exe Token: SeIncBasePriorityPrivilege 3136 Microsoft.exe Token: 33 3136 Microsoft.exe Token: SeIncBasePriorityPrivilege 3136 Microsoft.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
c0be73cb39b423805193433ad585f5b8.exeMicrosoft.exedescription pid process target process PID 4748 wrote to memory of 3136 4748 c0be73cb39b423805193433ad585f5b8.exe Microsoft.exe PID 4748 wrote to memory of 3136 4748 c0be73cb39b423805193433ad585f5b8.exe Microsoft.exe PID 4748 wrote to memory of 3136 4748 c0be73cb39b423805193433ad585f5b8.exe Microsoft.exe PID 3136 wrote to memory of 424 3136 Microsoft.exe netsh.exe PID 3136 wrote to memory of 424 3136 Microsoft.exe netsh.exe PID 3136 wrote to memory of 424 3136 Microsoft.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c0be73cb39b423805193433ad585f5b8.exe"C:\Users\Admin\AppData\Local\Temp\c0be73cb39b423805193433ad585f5b8.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
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- 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
37KB
MD5c0be73cb39b423805193433ad585f5b8
SHA14993129df55612315d66530cf1c8f8d4a16b7fda
SHA256de3eb03ecb262ac7d7e39fc1a746d03fe05586aaa8af9e9090fe6bbdd963094a
SHA51238d9ddf70d56fa4c6c77097e7158ccf0672efa303e423712fc31417e9f6947d541ff0bc87387636801fe6fac8eda403ccf5a55e9ee20cea04bf32ca7ae921dfb
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C:\Users\Admin\AppData\Local\Temp\Microsoft.exeFilesize
37KB
MD5c0be73cb39b423805193433ad585f5b8
SHA14993129df55612315d66530cf1c8f8d4a16b7fda
SHA256de3eb03ecb262ac7d7e39fc1a746d03fe05586aaa8af9e9090fe6bbdd963094a
SHA51238d9ddf70d56fa4c6c77097e7158ccf0672efa303e423712fc31417e9f6947d541ff0bc87387636801fe6fac8eda403ccf5a55e9ee20cea04bf32ca7ae921dfb
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memory/424-136-0x0000000000000000-mapping.dmp
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memory/3136-131-0x0000000000000000-mapping.dmp
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memory/3136-135-0x0000000074FE0000-0x0000000075591000-memory.dmpFilesize
5.7MB
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memory/3136-137-0x0000000074FE0000-0x0000000075591000-memory.dmpFilesize
5.7MB
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memory/4748-130-0x0000000074FE0000-0x0000000075591000-memory.dmpFilesize
5.7MB
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memory/4748-134-0x0000000074FE0000-0x0000000075591000-memory.dmpFilesize
5.7MB