Analysis
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max time kernel
141s -
max time network
141s -
platform
windows10-ltsc 2021_x64 -
resource
win10ltsc2021-20250217-en -
resource tags
arch:x64arch:x86image:win10ltsc2021-20250217-enlocale:en-usos:windows10-ltsc 2021-x64system -
submitted
03/03/2025, 21:00
Static task
static1
Behavioral task
behavioral1
Sample
54b1eec1d1aafed3f6d18fd961d5af59c6e064f7b419dc91f75fe60c2c859e20.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
54b1eec1d1aafed3f6d18fd961d5af59c6e064f7b419dc91f75fe60c2c859e20.exe
Resource
win10v2004-20250217-en
General
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Target
54b1eec1d1aafed3f6d18fd961d5af59c6e064f7b419dc91f75fe60c2c859e20.exe
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Size
312KB
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MD5
da25f7f495802094fb5a21e2584d53e8
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SHA1
c4c7661b9456e745402009e3270e1db4f99b91c3
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SHA256
54b1eec1d1aafed3f6d18fd961d5af59c6e064f7b419dc91f75fe60c2c859e20
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SHA512
f56ae1a67bc0761d5edfc626313519443b7699c511bdc57713fd4c6e2af522fb5d0ef6dc98def75c5ba87dafa7550cc4bb1d666a48d5d395978347b114f2876e
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SSDEEP
6144:o4/EUyRQtOMdnvMMavQZSZOgfpMl8hybZERd:7/pOMdnvnavQZSZHMehy1U
Malware Config
Extracted
netwire
163.172.122.160:6880
officeusd.hopto.org:6882
officeusd.freedynamicdns.org:6881
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activex_autorun
true
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activex_key
{N7037D4A-2XYB-3F80-7Y3N-NWDNM4H1232P}
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copy_executable
true
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delete_original
true
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host_id
USD
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install_path
%AppData%\Install\MicrosoftWindow.exe
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keylogger_dir
%AppData%\Logs\
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lock_executable
true
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mutex
HpxSfhNV
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offline_keylogger
true
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password
nobility007
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registry_autorun
true
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startup_name
MSWindow
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use_mutex
true
Signatures
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NetWire RAT payload 9 IoCs
resource yara_rule behavioral3/memory/4060-1-0x0000000000660000-0x0000000000760000-memory.dmp netwire behavioral3/memory/4060-2-0x0000000000400000-0x0000000000425000-memory.dmp netwire behavioral3/memory/2476-15-0x0000000000400000-0x00000000004FC000-memory.dmp netwire behavioral3/memory/2476-16-0x0000000000400000-0x00000000004FC000-memory.dmp netwire behavioral3/memory/4060-17-0x0000000000400000-0x00000000004FC000-memory.dmp netwire behavioral3/memory/4060-18-0x0000000000400000-0x0000000000425000-memory.dmp netwire behavioral3/memory/2476-19-0x0000000000400000-0x00000000004FC000-memory.dmp netwire behavioral3/memory/2476-22-0x0000000000400000-0x00000000004FC000-memory.dmp netwire behavioral3/memory/2476-29-0x0000000000400000-0x00000000004FC000-memory.dmp netwire -
Netwire family
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Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{N7037D4A-2XYB-3F80-7Y3N-NWDNM4H1232P} MicrosoftWindow.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{N7037D4A-2XYB-3F80-7Y3N-NWDNM4H1232P}\StubPath = "\"C:\\Users\\Admin\\AppData\\Roaming\\Install\\MicrosoftWindow.exe\"" MicrosoftWindow.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-80166876-2127584002-2233670790-1000\Control Panel\International\Geo\Nation 54b1eec1d1aafed3f6d18fd961d5af59c6e064f7b419dc91f75fe60c2c859e20.exe -
Executes dropped EXE 1 IoCs
pid Process 2476 MicrosoftWindow.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-80166876-2127584002-2233670790-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSWindow = "C:\\Users\\Admin\\AppData\\Roaming\\Install\\MicrosoftWindow.exe" MicrosoftWindow.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 2304 4060 WerFault.exe 83 -
System Location Discovery: System Language Discovery 1 TTPs 2 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 MicrosoftWindow.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 54b1eec1d1aafed3f6d18fd961d5af59c6e064f7b419dc91f75fe60c2c859e20.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4060 wrote to memory of 2476 4060 54b1eec1d1aafed3f6d18fd961d5af59c6e064f7b419dc91f75fe60c2c859e20.exe 84 PID 4060 wrote to memory of 2476 4060 54b1eec1d1aafed3f6d18fd961d5af59c6e064f7b419dc91f75fe60c2c859e20.exe 84 PID 4060 wrote to memory of 2476 4060 54b1eec1d1aafed3f6d18fd961d5af59c6e064f7b419dc91f75fe60c2c859e20.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\54b1eec1d1aafed3f6d18fd961d5af59c6e064f7b419dc91f75fe60c2c859e20.exe"C:\Users\Admin\AppData\Local\Temp\54b1eec1d1aafed3f6d18fd961d5af59c6e064f7b419dc91f75fe60c2c859e20.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4060 -
C:\Users\Admin\AppData\Roaming\Install\MicrosoftWindow.exe"C:\Users\Admin\AppData\Roaming\Install\MicrosoftWindow.exe" -m "C:\Users\Admin\AppData\Local\Temp\54b1eec1d1aafed3f6d18fd961d5af59c6e064f7b419dc91f75fe60c2c859e20.exe"2⤵
- Boot or Logon Autostart Execution: Active Setup
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
PID:2476
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4060 -s 11362⤵
- Program crash
PID:2304
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4060 -ip 40601⤵PID:1444
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Privilege Escalation
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
312KB
MD5da25f7f495802094fb5a21e2584d53e8
SHA1c4c7661b9456e745402009e3270e1db4f99b91c3
SHA25654b1eec1d1aafed3f6d18fd961d5af59c6e064f7b419dc91f75fe60c2c859e20
SHA512f56ae1a67bc0761d5edfc626313519443b7699c511bdc57713fd4c6e2af522fb5d0ef6dc98def75c5ba87dafa7550cc4bb1d666a48d5d395978347b114f2876e