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Analysis
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max time kernel
149s -
max time network
146s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
21/01/2024, 09:45
Behavioral task
behavioral1
Sample
6cfd31c3c1e3a4283e684ff8b8955004.exe
Resource
win7-20231129-en
General
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Target
6cfd31c3c1e3a4283e684ff8b8955004.exe
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Size
212KB
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MD5
6cfd31c3c1e3a4283e684ff8b8955004
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SHA1
4e2f48850ff114d1c9b8b1c813b36c60dddf41a5
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SHA256
b409ed29c46572da5f05ff451b7eb7fb89fac88cea526b3a8ac1976341704046
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SHA512
c66e1b1471722636a836915efb70d128edfaf791b456eaddddec3324090c66d64d864039eebc328ccdd3ed7b3ec04197ce13adc254c1ad78012b9501ea74823a
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SSDEEP
3072:KJacj8v7wQ+ZGx7w8wjjP8I1IU8RjrzzvUWAOZjfKdL+YP:KJPgv7wJZ87wBjYI1IUwrIOZyhP
Malware Config
Extracted
njrat
0.6.4
Hacked
abdo95.ddns.net:1177
ed6e2bf930f6d35b3ac57c049d10ac2c
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reg_key
ed6e2bf930f6d35b3ac57c049d10ac2c
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splitter
|'|'|
Signatures
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Modifies Windows Firewall 1 TTPs 1 IoCs
pid Process 2648 netsh.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ed6e2bf930f6d35b3ac57c049d10ac2c.exe Explorer.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ed6e2bf930f6d35b3ac57c049d10ac2c.exe Explorer.exe -
Executes dropped EXE 2 IoCs
pid Process 2860 test.exe 2140 Explorer.exe -
Loads dropped DLL 2 IoCs
pid Process 3016 cmd.exe 2860 test.exe -
resource yara_rule behavioral1/memory/2060-0-0x0000000000400000-0x0000000000498000-memory.dmp upx behavioral1/memory/2060-17-0x0000000000400000-0x0000000000498000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\ed6e2bf930f6d35b3ac57c049d10ac2c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Explorer.exe\" .." Explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ed6e2bf930f6d35b3ac57c049d10ac2c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Explorer.exe\" .." Explorer.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 34 IoCs
pid Process 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe 2140 Explorer.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2140 Explorer.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 2060 wrote to memory of 3016 2060 6cfd31c3c1e3a4283e684ff8b8955004.exe 29 PID 2060 wrote to memory of 3016 2060 6cfd31c3c1e3a4283e684ff8b8955004.exe 29 PID 2060 wrote to memory of 3016 2060 6cfd31c3c1e3a4283e684ff8b8955004.exe 29 PID 2060 wrote to memory of 3016 2060 6cfd31c3c1e3a4283e684ff8b8955004.exe 29 PID 3016 wrote to memory of 2860 3016 cmd.exe 30 PID 3016 wrote to memory of 2860 3016 cmd.exe 30 PID 3016 wrote to memory of 2860 3016 cmd.exe 30 PID 3016 wrote to memory of 2860 3016 cmd.exe 30 PID 2860 wrote to memory of 2140 2860 test.exe 33 PID 2860 wrote to memory of 2140 2860 test.exe 33 PID 2860 wrote to memory of 2140 2860 test.exe 33 PID 2860 wrote to memory of 2140 2860 test.exe 33 PID 2140 wrote to memory of 2648 2140 Explorer.exe 32 PID 2140 wrote to memory of 2648 2140 Explorer.exe 32 PID 2140 wrote to memory of 2648 2140 Explorer.exe 32 PID 2140 wrote to memory of 2648 2140 Explorer.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\6cfd31c3c1e3a4283e684ff8b8955004.exe"C:\Users\Admin\AppData\Local\Temp\6cfd31c3c1e3a4283e684ff8b8955004.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2060 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c test.exe2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3016 -
C:\Users\Admin\AppData\Local\Temp\test.exetest.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2860 -
C:\Users\Admin\AppData\Local\Temp\Explorer.exe"C:\Users\Admin\AppData\Local\Temp\Explorer.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:2140
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Explorer.exe" "Explorer.exe" ENABLE1⤵
- Modifies Windows Firewall
PID:2648
Network
MITRE ATT&CK Enterprise v15
Persistence
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
29KB
MD5fc42513e45503d510fb011bbb309e51e
SHA1e9741466f6e68dadb9e874f12d5b62fe14693741
SHA256766240fd9026a04e4a7f20240f699133eef24a969e242afdd471ad0a179cefe3
SHA5120f2a88f96a8a47abe062ccca986d2b3d98310374629c9067b19dbfeb73f23ba411b3ca5ae3877684770fb2d25947305b42c38a913a329e6220de6cd5d539a8ca