Analysis
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max time kernel
149s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
03/02/2024, 09:32
Behavioral task
behavioral1
Sample
8bfdedc30182ece284b09591788cc931.exe
Resource
win7-20231215-en
General
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Target
8bfdedc30182ece284b09591788cc931.exe
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Size
402KB
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MD5
8bfdedc30182ece284b09591788cc931
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SHA1
4ff3a3ad179c7bb9aa91493beb6ed30882fe8e46
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SHA256
00b99ceddb783a0fe3cac7aa2faa936ab54c5d6ff42280aaa307b04175c97103
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SHA512
92c584c203e66e95352109666f538ab4252543331dd9bda2463e4caec4e08b713796ca598babdd4260f43451f99fd6d1ee008bbbd0e6cf9d1edce1d6d2b4af15
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SSDEEP
6144:JmaKVBGmE84IMNv55giU0pKiFYHxfx15RvOagakZBxkTN2gmeGcFnVQb/DAYbDgW:eSmLAuEY71fviagATFmebVQDcYc6
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 2800 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 2668 test.exe 2932 Trojan.exe -
Loads dropped DLL 2 IoCs
pid Process 2416 cmd.exe 2668 test.exe -
resource yara_rule behavioral1/memory/1956-0-0x0000000000400000-0x00000000004FA000-memory.dmp upx behavioral1/memory/1956-18-0x0000000000400000-0x00000000004FA000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\5cd8f17f4086744065eb0992a09e05a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.exe\" .." Trojan.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\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 33 IoCs
pid Process 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe 2932 Trojan.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2932 Trojan.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 1956 wrote to memory of 2416 1956 8bfdedc30182ece284b09591788cc931.exe 29 PID 1956 wrote to memory of 2416 1956 8bfdedc30182ece284b09591788cc931.exe 29 PID 1956 wrote to memory of 2416 1956 8bfdedc30182ece284b09591788cc931.exe 29 PID 1956 wrote to memory of 2416 1956 8bfdedc30182ece284b09591788cc931.exe 29 PID 2416 wrote to memory of 2668 2416 cmd.exe 30 PID 2416 wrote to memory of 2668 2416 cmd.exe 30 PID 2416 wrote to memory of 2668 2416 cmd.exe 30 PID 2416 wrote to memory of 2668 2416 cmd.exe 30 PID 2668 wrote to memory of 2932 2668 test.exe 32 PID 2668 wrote to memory of 2932 2668 test.exe 32 PID 2668 wrote to memory of 2932 2668 test.exe 32 PID 2668 wrote to memory of 2932 2668 test.exe 32 PID 2932 wrote to memory of 2800 2932 Trojan.exe 31 PID 2932 wrote to memory of 2800 2932 Trojan.exe 31 PID 2932 wrote to memory of 2800 2932 Trojan.exe 31 PID 2932 wrote to memory of 2800 2932 Trojan.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\8bfdedc30182ece284b09591788cc931.exe"C:\Users\Admin\AppData\Local\Temp\8bfdedc30182ece284b09591788cc931.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1956 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c test.exe2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2416 -
C:\Users\Admin\AppData\Local\Temp\test.exetest.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2668 -
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:2932
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE1⤵
- Modifies Windows Firewall
PID:2800
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