Analysis
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max time kernel
150s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
26/01/2024, 23:24
Behavioral task
behavioral1
Sample
78a9c32a4f8e84a1fac417b3621be3b4.exe
Resource
win7-20231215-en
General
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Target
78a9c32a4f8e84a1fac417b3621be3b4.exe
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Size
402KB
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MD5
78a9c32a4f8e84a1fac417b3621be3b4
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SHA1
8503b246c13b9367fe086df8b3a902d03f131057
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SHA256
c48f8cf91800215da1f4f9f6bea83f59ad2ba28c66b8bee2d69c80bdbd4d9f11
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SHA512
121f9f0a1b36d25a07b86c7a573ebac088826514468959bab878a1ed02a865c24a7a051a840a2a2c096d67ff79ddc1681a07f08a2d0407bb09809e9e50818f9d
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SSDEEP
6144:MmaKVBGmE84IMNv55giU0pKiFYHxfx15RvOagakZBxkTN2gmeGcFnVQb/DAYbDgE:lSmLAuEY71fviagATFmebVQDcYcY
Malware Config
Extracted
njrat
0.6.4
hhhmach.ddns.net:1177
5cd8f17f4086744065eb0992a09e05a2
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reg_key
5cd8f17f4086744065eb0992a09e05a2
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splitter
|'|'|
Signatures
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2536 netsh.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5cd8f17f4086744065eb0992a09e05a2.exe Trojan.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5cd8f17f4086744065eb0992a09e05a2.exe Trojan.exe -
Executes dropped EXE 2 IoCs
pid Process 1052 test.exe 2788 Trojan.exe -
Loads dropped DLL 2 IoCs
pid Process 2824 cmd.exe 1052 test.exe -
resource yara_rule behavioral1/memory/1032-0-0x0000000000400000-0x00000000004FB000-memory.dmp upx behavioral1/memory/1032-18-0x0000000000400000-0x00000000004FB000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\5cd8f17f4086744065eb0992a09e05a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.exe\" .." Trojan.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\5cd8f17f4086744065eb0992a09e05a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.exe\" .." Trojan.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 31 IoCs
pid Process 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe 2788 Trojan.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2788 Trojan.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 1032 wrote to memory of 2824 1032 78a9c32a4f8e84a1fac417b3621be3b4.exe 29 PID 1032 wrote to memory of 2824 1032 78a9c32a4f8e84a1fac417b3621be3b4.exe 29 PID 1032 wrote to memory of 2824 1032 78a9c32a4f8e84a1fac417b3621be3b4.exe 29 PID 1032 wrote to memory of 2824 1032 78a9c32a4f8e84a1fac417b3621be3b4.exe 29 PID 2824 wrote to memory of 1052 2824 cmd.exe 30 PID 2824 wrote to memory of 1052 2824 cmd.exe 30 PID 2824 wrote to memory of 1052 2824 cmd.exe 30 PID 2824 wrote to memory of 1052 2824 cmd.exe 30 PID 1052 wrote to memory of 2788 1052 test.exe 31 PID 1052 wrote to memory of 2788 1052 test.exe 31 PID 1052 wrote to memory of 2788 1052 test.exe 31 PID 1052 wrote to memory of 2788 1052 test.exe 31 PID 2788 wrote to memory of 2536 2788 Trojan.exe 32 PID 2788 wrote to memory of 2536 2788 Trojan.exe 32 PID 2788 wrote to memory of 2536 2788 Trojan.exe 32 PID 2788 wrote to memory of 2536 2788 Trojan.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\78a9c32a4f8e84a1fac417b3621be3b4.exe"C:\Users\Admin\AppData\Local\Temp\78a9c32a4f8e84a1fac417b3621be3b4.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1032 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c test.exe2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2824 -
C:\Users\Admin\AppData\Local\Temp\test.exetest.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1052 -
C:\Users\Admin\AppData\Local\Temp\Trojan.exe"C:\Users\Admin\AppData\Local\Temp\Trojan.exe"4⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2788 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE5⤵
- Modifies Windows Firewall
PID:2536
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
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Downloads
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Filesize
78KB
MD542c5854aa0709d8bf6c28ea82c67b9a5
SHA1124ea473f0572009de85a4a46f361109f4fae7d6
SHA25671e1add662041fee9ff0ddf0139154cf006538559af45f34047aac91efb1b8eb
SHA512c0f4412f2237138b5b66ecc285d7f44bacd67ae23feb0a55561cd4f7850ee6b0fd1b1dac3d2725ed4932aaf155b0fbda284a69b07594789bdb4cbcf0f499d95a