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Analysis
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max time kernel
144s -
max time network
141s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
04/12/2024, 06:07
Static task
static1
Behavioral task
behavioral1
Sample
7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
Resource
win10v2004-20241007-en
General
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Target
7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe
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Size
1.2MB
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MD5
0892da2c8fbf043ae276100f9c7ec8ba
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SHA1
7237c52c96efcfa0105f0cdaf37245f0b29685de
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SHA256
7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708
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SHA512
c547262992a16e873c39997f6e892d0959474efc78d99330160fa82621a732f297100fe73ecb3d520e4053087bbd9428f11be695d8f83c02a08be3dd010bc77e
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SSDEEP
24576:eAHnh+eWsN3skA4RV1Hom2KXMmHaW7aWvCaFg5a7PCmWX95G:Jh+ZkldoPK8YaW7CaZ7IHG
Malware Config
Extracted
njrat
0.7d
redlanhopto
redlan.hopto.org:5553
d25d360449d7bab3069e1b77b3a914a3
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reg_key
d25d360449d7bab3069e1b77b3a914a3
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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 2652 netsh.exe -
Executes dropped EXE 1 IoCs
pid Process 712 data.exe -
AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral1/files/0x0036000000015d48-15.dat autoit_exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2468 set thread context of 2960 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 30 PID 712 set thread context of 1504 712 data.exe 39 -
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 opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe -
System Location Discovery: System Language Discovery 1 TTPs 7 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 data.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2448 schtasks.exe 1508 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 712 data.exe 712 data.exe -
Suspicious use of AdjustPrivilegeToken 27 IoCs
description pid Process Token: SeDebugPrivilege 2960 RegAsm.exe Token: 33 2960 RegAsm.exe Token: SeIncBasePriorityPrivilege 2960 RegAsm.exe Token: 33 2960 RegAsm.exe Token: SeIncBasePriorityPrivilege 2960 RegAsm.exe Token: 33 2960 RegAsm.exe Token: SeIncBasePriorityPrivilege 2960 RegAsm.exe Token: 33 2960 RegAsm.exe Token: SeIncBasePriorityPrivilege 2960 RegAsm.exe Token: 33 2960 RegAsm.exe Token: SeIncBasePriorityPrivilege 2960 RegAsm.exe Token: 33 2960 RegAsm.exe Token: SeIncBasePriorityPrivilege 2960 RegAsm.exe Token: 33 2960 RegAsm.exe Token: SeIncBasePriorityPrivilege 2960 RegAsm.exe Token: 33 2960 RegAsm.exe Token: SeIncBasePriorityPrivilege 2960 RegAsm.exe Token: 33 2960 RegAsm.exe Token: SeIncBasePriorityPrivilege 2960 RegAsm.exe Token: 33 2960 RegAsm.exe Token: SeIncBasePriorityPrivilege 2960 RegAsm.exe Token: 33 2960 RegAsm.exe Token: SeIncBasePriorityPrivilege 2960 RegAsm.exe Token: 33 2960 RegAsm.exe Token: SeIncBasePriorityPrivilege 2960 RegAsm.exe Token: 33 2960 RegAsm.exe Token: SeIncBasePriorityPrivilege 2960 RegAsm.exe -
Suspicious use of FindShellTrayWindow 6 IoCs
pid Process 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 712 data.exe 712 data.exe 712 data.exe -
Suspicious use of SendNotifyMessage 6 IoCs
pid Process 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 712 data.exe 712 data.exe 712 data.exe -
Suspicious use of WriteProcessMemory 34 IoCs
description pid Process procid_target PID 2468 wrote to memory of 2960 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 30 PID 2468 wrote to memory of 2960 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 30 PID 2468 wrote to memory of 2960 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 30 PID 2468 wrote to memory of 2960 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 30 PID 2468 wrote to memory of 2960 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 30 PID 2468 wrote to memory of 2960 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 30 PID 2468 wrote to memory of 2960 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 30 PID 2468 wrote to memory of 2960 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 30 PID 2468 wrote to memory of 2960 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 30 PID 2960 wrote to memory of 2652 2960 RegAsm.exe 32 PID 2960 wrote to memory of 2652 2960 RegAsm.exe 32 PID 2960 wrote to memory of 2652 2960 RegAsm.exe 32 PID 2960 wrote to memory of 2652 2960 RegAsm.exe 32 PID 2468 wrote to memory of 2448 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 35 PID 2468 wrote to memory of 2448 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 35 PID 2468 wrote to memory of 2448 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 35 PID 2468 wrote to memory of 2448 2468 7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe 35 PID 2032 wrote to memory of 712 2032 taskeng.exe 38 PID 2032 wrote to memory of 712 2032 taskeng.exe 38 PID 2032 wrote to memory of 712 2032 taskeng.exe 38 PID 2032 wrote to memory of 712 2032 taskeng.exe 38 PID 712 wrote to memory of 1504 712 data.exe 39 PID 712 wrote to memory of 1504 712 data.exe 39 PID 712 wrote to memory of 1504 712 data.exe 39 PID 712 wrote to memory of 1504 712 data.exe 39 PID 712 wrote to memory of 1504 712 data.exe 39 PID 712 wrote to memory of 1504 712 data.exe 39 PID 712 wrote to memory of 1504 712 data.exe 39 PID 712 wrote to memory of 1504 712 data.exe 39 PID 712 wrote to memory of 1504 712 data.exe 39 PID 712 wrote to memory of 1508 712 data.exe 40 PID 712 wrote to memory of 1508 712 data.exe 40 PID 712 wrote to memory of 1508 712 data.exe 40 PID 712 wrote to memory of 1508 712 data.exe 40
Processes
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C:\Users\Admin\AppData\Local\Temp\7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe"C:\Users\Admin\AppData\Local\Temp\7dc6f983812204ae8a4f6fdc87c0b068c562dee184b268e04391975c582be708.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2468 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2960 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" "RegAsm.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2652
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn igfxHK /tr "C:\Users\Admin\AppData\Roaming\chkdsk\data.exe" /sc minute /mo 1 /F2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2448
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C:\Windows\system32\taskeng.exetaskeng.exe {236E3398-68D0-4E09-92FE-6442191E8A5A} S-1-5-21-3063565911-2056067323-3330884624-1000:KHBTHJFA\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\Users\Admin\AppData\Roaming\chkdsk\data.exeC:\Users\Admin\AppData\Roaming\chkdsk\data.exe2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:712 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"3⤵
- System Location Discovery: System Language Discovery
PID:1504
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn igfxHK /tr "C:\Users\Admin\AppData\Roaming\chkdsk\data.exe" /sc minute /mo 1 /F3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1508
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Network
MITRE ATT&CK Enterprise v15
Persistence
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
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Downloads
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Filesize
1.2MB
MD5b1cc65705a46a069a40af6979ef1dad8
SHA1fe13287e16ff07bdbf80244e8e7eb948658fe3bf
SHA256c9b36c8f61f8ee135b6dcfa83d65b47b588f3460f65bdde655ac64e332d9ef5f
SHA51215d03d4528db3ea248399b66f5325ea29652d5f3ae5cdc760de3c4e5836d5b9598fcd3238375cec51d54bb574ea584187d6c11a34cccc27a03081064b43a5502