Analysis
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max time kernel
23s -
max time network
19s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
08-12-2024 21:53
Behavioral task
behavioral1
Sample
gz ruler v7.scr
Resource
win10v2004-20241007-en
General
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Target
gz ruler v7.scr
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Size
3.7MB
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MD5
316d623d9437ddbd4ef778596750ea46
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SHA1
f327c665c00a051b1675592802aa0d15552933cf
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SHA256
82b0f65acaf8ba96c879a3d16acf525b60529a0fc9f02d7efad59c04653f0e97
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SHA512
0f017e3a4e5e933c882c6b632bc27518352ffd60f3480362e8625bc95f20fea8990450fc4a9a6fe36a3eb3c17809aad78fb5b6ff03532261aeed7b4bc90bba9a
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SSDEEP
49152:N7evlixp+SNMbqmuPomyp+Hnf/Mageqs6X/TkZWI9Ebddx:NCvZuPMoctq
Malware Config
Signatures
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3204 netsh.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation gz ruler v7.scr Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation LocalMyVJmeDkpP.exe -
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\011264b060c8318a88c0a0aeca37affb.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\011264b060c8318a88c0a0aeca37affb.exe svchost.exe -
Executes dropped EXE 3 IoCs
pid Process 1736 LocalMyVJmeDkpP.exe 2548 LocalRdjadjWLES..exe 3520 svchost.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\011264b060c8318a88c0a0aeca37affb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe\" .." svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\011264b060c8318a88c0a0aeca37affb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe\" .." svchost.exe -
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 queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe -
System Location Discovery: System Language Discovery 1 TTPs 4 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 netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language LocalMyVJmeDkpP.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language LocalRdjadjWLES..exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 3520 svchost.exe Token: 33 3520 svchost.exe Token: SeIncBasePriorityPrivilege 3520 svchost.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 916 wrote to memory of 1736 916 gz ruler v7.scr 82 PID 916 wrote to memory of 1736 916 gz ruler v7.scr 82 PID 916 wrote to memory of 1736 916 gz ruler v7.scr 82 PID 916 wrote to memory of 2548 916 gz ruler v7.scr 84 PID 916 wrote to memory of 2548 916 gz ruler v7.scr 84 PID 916 wrote to memory of 2548 916 gz ruler v7.scr 84 PID 1736 wrote to memory of 3520 1736 LocalMyVJmeDkpP.exe 86 PID 1736 wrote to memory of 3520 1736 LocalMyVJmeDkpP.exe 86 PID 1736 wrote to memory of 3520 1736 LocalMyVJmeDkpP.exe 86 PID 3520 wrote to memory of 3204 3520 svchost.exe 88 PID 3520 wrote to memory of 3204 3520 svchost.exe 88 PID 3520 wrote to memory of 3204 3520 svchost.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\gz ruler v7.scr"C:\Users\Admin\AppData\Local\Temp\gz ruler v7.scr" /S1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:916 -
C:\Users\Admin\AppData\LocalMyVJmeDkpP.exe"C:\Users\Admin\AppData\LocalMyVJmeDkpP.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1736 -
C:\Users\Admin\AppData\Local\Temp\svchost.exe"C:\Users\Admin\AppData\Local\Temp\svchost.exe"3⤵
- 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:3520 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE4⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:3204
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C:\Users\Admin\AppData\LocalRdjadjWLES..exe"C:\Users\Admin\AppData\LocalRdjadjWLES..exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2548
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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
23KB
MD59ee77c8b76b55cab94d8b8600667217f
SHA181bb94ea21228e0060d69bb3fb062589a11e181c
SHA2563f5fe8841c00697fb96bf1b6829657ac45e50d0403d98c8f13dcf9e3e108a503
SHA512ecc145cb6a333191b3f146225b67c3fa66c1f8e0130627e133df587ede019e1f3d59ae8c06faa15f3b55272ed9ec798efde2f8a3e48e4b297e10893cfff1b65f
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Filesize
3.6MB
MD55e4a4f22da6b5155f39bbfb715efd648
SHA145c6f539846011a21e79432994fd30771ac1f3d3
SHA25637549784d25c0a6f7b27f88b74c544f063872bf22c19554811ee6c7153a63bb4
SHA512fb196c62fb8dfe964df163a43a2ffdb0259693e11242f6e8900c8856defa764d4be7b00344f1e4a711cce884e516d654ee98fdd034495dc89996130c5f904cfe