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Analysis
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max time kernel
119s -
max time network
117s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
25/12/2024, 23:36
Static task
static1
Behavioral task
behavioral1
Sample
9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
Resource
win10v2004-20241007-en
General
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Target
9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
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Size
1.2MB
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MD5
89f61f4ce69f8aa2d6b5a71314fe8ee0
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SHA1
ac1805406e02bbba5ed1af845633e12d44e431bf
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SHA256
9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935
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SHA512
f357e39f8af319778af221408c19846be878906d0400a709de4174b2566118207fd551566ba46ad40272cbb49f58336599b214e47c8133f39e64611407bd1dc5
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SSDEEP
24576:eAHnh+eWsN3skA4RV1Hom2KXMmHaW7aWvCaFg5a7PCmWX95h:Jh+ZkldoPK8YaW7CaZ7IHh
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 2712 netsh.exe -
Executes dropped EXE 1 IoCs
pid Process 1748 data.exe -
AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral1/files/0x000b000000012281-15.dat autoit_exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2208 set thread context of 2412 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 31 -
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 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 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language data.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3052 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 1748 data.exe 1748 data.exe -
Suspicious use of AdjustPrivilegeToken 21 IoCs
description pid Process Token: SeDebugPrivilege 2412 RegAsm.exe Token: 33 2412 RegAsm.exe Token: SeIncBasePriorityPrivilege 2412 RegAsm.exe Token: 33 2412 RegAsm.exe Token: SeIncBasePriorityPrivilege 2412 RegAsm.exe Token: 33 2412 RegAsm.exe Token: SeIncBasePriorityPrivilege 2412 RegAsm.exe Token: 33 2412 RegAsm.exe Token: SeIncBasePriorityPrivilege 2412 RegAsm.exe Token: 33 2412 RegAsm.exe Token: SeIncBasePriorityPrivilege 2412 RegAsm.exe Token: 33 2412 RegAsm.exe Token: SeIncBasePriorityPrivilege 2412 RegAsm.exe Token: 33 2412 RegAsm.exe Token: SeIncBasePriorityPrivilege 2412 RegAsm.exe Token: 33 2412 RegAsm.exe Token: SeIncBasePriorityPrivilege 2412 RegAsm.exe Token: 33 2412 RegAsm.exe Token: SeIncBasePriorityPrivilege 2412 RegAsm.exe Token: 33 2412 RegAsm.exe Token: SeIncBasePriorityPrivilege 2412 RegAsm.exe -
Suspicious use of FindShellTrayWindow 6 IoCs
pid Process 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 1748 data.exe 1748 data.exe 1748 data.exe -
Suspicious use of SendNotifyMessage 6 IoCs
pid Process 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 1748 data.exe 1748 data.exe 1748 data.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2208 wrote to memory of 2412 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 31 PID 2208 wrote to memory of 2412 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 31 PID 2208 wrote to memory of 2412 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 31 PID 2208 wrote to memory of 2412 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 31 PID 2208 wrote to memory of 2412 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 31 PID 2208 wrote to memory of 2412 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 31 PID 2208 wrote to memory of 2412 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 31 PID 2208 wrote to memory of 2412 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 31 PID 2208 wrote to memory of 2412 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 31 PID 2412 wrote to memory of 2712 2412 RegAsm.exe 32 PID 2412 wrote to memory of 2712 2412 RegAsm.exe 32 PID 2412 wrote to memory of 2712 2412 RegAsm.exe 32 PID 2412 wrote to memory of 2712 2412 RegAsm.exe 32 PID 2208 wrote to memory of 3052 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 35 PID 2208 wrote to memory of 3052 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 35 PID 2208 wrote to memory of 3052 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 35 PID 2208 wrote to memory of 3052 2208 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe 35 PID 2000 wrote to memory of 1748 2000 taskeng.exe 39 PID 2000 wrote to memory of 1748 2000 taskeng.exe 39 PID 2000 wrote to memory of 1748 2000 taskeng.exe 39 PID 2000 wrote to memory of 1748 2000 taskeng.exe 39
Processes
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C:\Users\Admin\AppData\Local\Temp\9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe"C:\Users\Admin\AppData\Local\Temp\9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.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:2208 -
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:2412 -
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:2712
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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:3052
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C:\Windows\system32\taskeng.exetaskeng.exe {0AE8116C-3E1C-494E-A25A-8B2F4C39558E} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:2000 -
C:\Users\Admin\AppData\Roaming\chkdsk\data.exeC:\Users\Admin\AppData\Roaming\chkdsk\data.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1748
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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
MD5060156fee63ef02e1af842ccf53e9cce
SHA137f2ee8acf9376ea30da24f32bbb0468b411b72a
SHA256c274ff496ac98bdbe6b2810ae85326b122bbe1d65f9a08999d9289b5aa507d8c
SHA512311e0a52806258cca4ece6755c45439726a2678d929cc4f5da916cd12ccd9844a20dc2da91b621937c5ff3fcb900c82b03d56691c8b2052522616d8f3b9cd945