Analysis
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max time kernel
119s -
max time network
25s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
29/11/2024, 15:48
Static task
static1
Behavioral task
behavioral1
Sample
1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe
Resource
win10v2004-20241007-en
General
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Target
1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe
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Size
131KB
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MD5
7593f02bfbb8aee2c614fa57fc573663
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SHA1
2bf98e5b9655c17907d3fb2a10ed6c3704bece45
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SHA256
1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b
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SHA512
761b99affcbc85a6ff07ea107eed8155950d4a48a83740e6d8b35134dcf0d6b18a5ba0fca81a07ff0326096a2b80fa45fc1ac7f8dd92e852ee28954dfa4fff0c
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SSDEEP
3072:ibxSTpiG8wMZJYKR5Gevfj7rZyqEX25Ny5k1jNfLbvu:ibx4ij9LjlvYX25Y5kxpf2
Malware Config
Extracted
njrat
0.7d
HacKed
systemftp.serveftp.com:19495
c154dc1439ce42713df8b7de38bd1b02
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reg_key
c154dc1439ce42713df8b7de38bd1b02
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splitter
|'|'|
Signatures
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Njrat family
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1292 netsh.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c154dc1439ce42713df8b7de38bd1b02.exe system.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c154dc1439ce42713df8b7de38bd1b02.exe system.exe -
Executes dropped EXE 2 IoCs
pid Process 2916 system.exe 2628 system.exe -
Loads dropped DLL 2 IoCs
pid Process 2360 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe 2916 system.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\c154dc1439ce42713df8b7de38bd1b02 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .." system.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\c154dc1439ce42713df8b7de38bd1b02 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .." system.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2104 set thread context of 2360 2104 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe 30 PID 2916 set thread context of 2628 2916 system.exe 34 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe -
System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language system.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language system.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2104 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe 2104 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe 2104 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe 2916 system.exe 2916 system.exe 2916 system.exe -
Suspicious use of AdjustPrivilegeToken 27 IoCs
description pid Process Token: SeDebugPrivilege 2104 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe Token: SeDebugPrivilege 2916 system.exe Token: SeDebugPrivilege 2628 system.exe Token: 33 2628 system.exe Token: SeIncBasePriorityPrivilege 2628 system.exe Token: 33 2628 system.exe Token: SeIncBasePriorityPrivilege 2628 system.exe Token: 33 2628 system.exe Token: SeIncBasePriorityPrivilege 2628 system.exe Token: 33 2628 system.exe Token: SeIncBasePriorityPrivilege 2628 system.exe Token: 33 2628 system.exe Token: SeIncBasePriorityPrivilege 2628 system.exe Token: 33 2628 system.exe Token: SeIncBasePriorityPrivilege 2628 system.exe Token: 33 2628 system.exe Token: SeIncBasePriorityPrivilege 2628 system.exe Token: 33 2628 system.exe Token: SeIncBasePriorityPrivilege 2628 system.exe Token: 33 2628 system.exe Token: SeIncBasePriorityPrivilege 2628 system.exe Token: 33 2628 system.exe Token: SeIncBasePriorityPrivilege 2628 system.exe Token: 33 2628 system.exe Token: SeIncBasePriorityPrivilege 2628 system.exe Token: 33 2628 system.exe Token: SeIncBasePriorityPrivilege 2628 system.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 2104 wrote to memory of 2360 2104 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe 30 PID 2104 wrote to memory of 2360 2104 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe 30 PID 2104 wrote to memory of 2360 2104 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe 30 PID 2104 wrote to memory of 2360 2104 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe 30 PID 2104 wrote to memory of 2360 2104 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe 30 PID 2104 wrote to memory of 2360 2104 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe 30 PID 2360 wrote to memory of 2916 2360 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe 33 PID 2360 wrote to memory of 2916 2360 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe 33 PID 2360 wrote to memory of 2916 2360 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe 33 PID 2360 wrote to memory of 2916 2360 1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe 33 PID 2916 wrote to memory of 2628 2916 system.exe 34 PID 2916 wrote to memory of 2628 2916 system.exe 34 PID 2916 wrote to memory of 2628 2916 system.exe 34 PID 2916 wrote to memory of 2628 2916 system.exe 34 PID 2916 wrote to memory of 2628 2916 system.exe 34 PID 2916 wrote to memory of 2628 2916 system.exe 34 PID 2628 wrote to memory of 1292 2628 system.exe 35 PID 2628 wrote to memory of 1292 2628 system.exe 35 PID 2628 wrote to memory of 1292 2628 system.exe 35 PID 2628 wrote to memory of 1292 2628 system.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe"C:\Users\Admin\AppData\Local\Temp\1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2104 -
C:\Users\Admin\AppData\Local\Temp\1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exeC:\Users\Admin\AppData\Local\Temp\1b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b.exe2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2360 -
C:\Users\Admin\AppData\Local\Temp\system.exe"C:\Users\Admin\AppData\Local\Temp\system.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2916 -
C:\Users\Admin\AppData\Local\Temp\system.exeC:\Users\Admin\AppData\Local\Temp\system.exe4⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2628 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system.exe" "system.exe" ENABLE5⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:1292
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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
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
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Downloads
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Filesize
131KB
MD57593f02bfbb8aee2c614fa57fc573663
SHA12bf98e5b9655c17907d3fb2a10ed6c3704bece45
SHA2561b686004db276e1742e659d6fe4eda1a4e5fa7579d208c7b7c675d65bafe4b5b
SHA512761b99affcbc85a6ff07ea107eed8155950d4a48a83740e6d8b35134dcf0d6b18a5ba0fca81a07ff0326096a2b80fa45fc1ac7f8dd92e852ee28954dfa4fff0c