Analysis
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max time kernel
149s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
27-02-2024 01:44
Behavioral task
behavioral1
Sample
a7e5f463382b52c236822e311a59bb2b.exe
Resource
win7-20240221-en
General
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Target
a7e5f463382b52c236822e311a59bb2b.exe
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Size
444KB
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MD5
a7e5f463382b52c236822e311a59bb2b
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SHA1
3ffc4f11573f858e3ff4c663576c6a36535c8078
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SHA256
82733477c5f9c6d503c68563a8f8ce782d00f46678a8965182c7603191b4c078
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SHA512
e128d58eb43524feea93b41e0a0d3a654bdee59e2664538cf0678aec69cc5675c461546954ba7baa4b197e7297816cfbcfacc603b8971a6afc55850a81bf11b1
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SSDEEP
3072:NJacj8v7wQ+ZGx7w8wjjP8I1IU8RjrzzvUWAOZjfKdLgY7:NJPgv7wJZ87wBjYI1IUwrIOZyf7
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 2 TTPs 1 IoCs
pid Process 2676 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 2112 test.exe 2552 Explorer.exe -
Loads dropped DLL 2 IoCs
pid Process 1224 cmd.exe 2112 test.exe -
resource yara_rule behavioral1/memory/856-0-0x0000000000400000-0x0000000000498000-memory.dmp upx behavioral1/memory/856-19-0x0000000000400000-0x0000000000498000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\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 33 IoCs
pid Process 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe 2552 Explorer.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2552 Explorer.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 856 wrote to memory of 1224 856 a7e5f463382b52c236822e311a59bb2b.exe 29 PID 856 wrote to memory of 1224 856 a7e5f463382b52c236822e311a59bb2b.exe 29 PID 856 wrote to memory of 1224 856 a7e5f463382b52c236822e311a59bb2b.exe 29 PID 856 wrote to memory of 1224 856 a7e5f463382b52c236822e311a59bb2b.exe 29 PID 1224 wrote to memory of 2112 1224 cmd.exe 30 PID 1224 wrote to memory of 2112 1224 cmd.exe 30 PID 1224 wrote to memory of 2112 1224 cmd.exe 30 PID 1224 wrote to memory of 2112 1224 cmd.exe 30 PID 2112 wrote to memory of 2552 2112 test.exe 31 PID 2112 wrote to memory of 2552 2112 test.exe 31 PID 2112 wrote to memory of 2552 2112 test.exe 31 PID 2112 wrote to memory of 2552 2112 test.exe 31 PID 2552 wrote to memory of 2676 2552 Explorer.exe 32 PID 2552 wrote to memory of 2676 2552 Explorer.exe 32 PID 2552 wrote to memory of 2676 2552 Explorer.exe 32 PID 2552 wrote to memory of 2676 2552 Explorer.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\a7e5f463382b52c236822e311a59bb2b.exe"C:\Users\Admin\AppData\Local\Temp\a7e5f463382b52c236822e311a59bb2b.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:856 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c test.exe2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1224 -
C:\Users\Admin\AppData\Local\Temp\test.exetest.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2112 -
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:2552 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Explorer.exe" "Explorer.exe" ENABLE5⤵
- Modifies Windows Firewall
PID:2676
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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
Loading Replay Monitor...
Downloads
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Filesize
29KB
MD5fc42513e45503d510fb011bbb309e51e
SHA1e9741466f6e68dadb9e874f12d5b62fe14693741
SHA256766240fd9026a04e4a7f20240f699133eef24a969e242afdd471ad0a179cefe3
SHA5120f2a88f96a8a47abe062ccca986d2b3d98310374629c9067b19dbfeb73f23ba411b3ca5ae3877684770fb2d25947305b42c38a913a329e6220de6cd5d539a8ca