Analysis
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max time kernel
147s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
01-09-2024 12:32
Static task
static1
Behavioral task
behavioral1
Sample
d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe
Resource
win10v2004-20240802-en
General
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Target
d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe
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Size
10.6MB
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MD5
32cbda26c9835c1c63f2fed688fb5bb9
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SHA1
1b8b5445b2ff31e5377c0a2297672bf656695777
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SHA256
d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4
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SHA512
34246c7b622d4ff88c401d25da883962dfba46c878bf9387f3b72942add8ccfe1785b4c5dfbacfcbbc1a3f40e866cc701ce2ff8f2334868ae16b150e61de4e5e
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SSDEEP
12288:KQeoegEG/Rl1M7jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjz:KQeGX1M
Malware Config
Extracted
tofsee
defeatwax.ru
refabyd.info
Signatures
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Creates new service(s) 2 TTPs
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Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 5008 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
Processes:
svchost.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\yrnkftyr\ImagePath = "C:\\Windows\\SysWOW64\\yrnkftyr\\wmhtnzdv.exe" svchost.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe -
Deletes itself 1 IoCs
Processes:
svchost.exepid process 2088 svchost.exe -
Executes dropped EXE 1 IoCs
Processes:
wmhtnzdv.exepid process 4796 wmhtnzdv.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
wmhtnzdv.exedescription pid process target process PID 4796 set thread context of 2088 4796 wmhtnzdv.exe svchost.exe -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exesc.exesc.exepid process 1584 sc.exe 4324 sc.exe 1188 sc.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.
Processes:
netsh.exedescription 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 -
Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process target process 1052 3296 WerFault.exe d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe 2748 4796 WerFault.exe wmhtnzdv.exe -
System Location Discovery: System Language Discovery 1 TTPs 9 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
cmd.exesc.exesc.exenetsh.exewmhtnzdv.exesvchost.exed26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.execmd.exesc.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wmhtnzdv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exewmhtnzdv.exedescription pid process target process PID 3296 wrote to memory of 3948 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe cmd.exe PID 3296 wrote to memory of 3948 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe cmd.exe PID 3296 wrote to memory of 3948 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe cmd.exe PID 3296 wrote to memory of 1604 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe cmd.exe PID 3296 wrote to memory of 1604 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe cmd.exe PID 3296 wrote to memory of 1604 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe cmd.exe PID 3296 wrote to memory of 1584 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe sc.exe PID 3296 wrote to memory of 1584 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe sc.exe PID 3296 wrote to memory of 1584 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe sc.exe PID 3296 wrote to memory of 4324 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe sc.exe PID 3296 wrote to memory of 4324 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe sc.exe PID 3296 wrote to memory of 4324 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe sc.exe PID 3296 wrote to memory of 1188 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe sc.exe PID 3296 wrote to memory of 1188 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe sc.exe PID 3296 wrote to memory of 1188 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe sc.exe PID 3296 wrote to memory of 5008 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe netsh.exe PID 3296 wrote to memory of 5008 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe netsh.exe PID 3296 wrote to memory of 5008 3296 d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe netsh.exe PID 4796 wrote to memory of 2088 4796 wmhtnzdv.exe svchost.exe PID 4796 wrote to memory of 2088 4796 wmhtnzdv.exe svchost.exe PID 4796 wrote to memory of 2088 4796 wmhtnzdv.exe svchost.exe PID 4796 wrote to memory of 2088 4796 wmhtnzdv.exe svchost.exe PID 4796 wrote to memory of 2088 4796 wmhtnzdv.exe svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe"C:\Users\Admin\AppData\Local\Temp\d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3296 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yrnkftyr\2⤵
- System Location Discovery: System Language Discovery
PID:3948 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wmhtnzdv.exe" C:\Windows\SysWOW64\yrnkftyr\2⤵
- System Location Discovery: System Language Discovery
PID:1604 -
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create yrnkftyr binPath= "C:\Windows\SysWOW64\yrnkftyr\wmhtnzdv.exe /d\"C:\Users\Admin\AppData\Local\Temp\d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1584 -
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description yrnkftyr "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4324 -
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start yrnkftyr2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1188 -
C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul2⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:5008 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3296 -s 12682⤵
- Program crash
PID:1052
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C:\Windows\SysWOW64\yrnkftyr\wmhtnzdv.exeC:\Windows\SysWOW64\yrnkftyr\wmhtnzdv.exe /d"C:\Users\Admin\AppData\Local\Temp\d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4796 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:2088 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4796 -s 5362⤵
- Program crash
PID:2748
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3296 -ip 32961⤵PID:868
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4796 -ip 47961⤵PID:2040
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Event 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
10.1MB
MD5869784be2c80a0110cfb4d45829aa8a2
SHA18489e7e81e069b76b5aabe6ef3f63f9e701b8bad
SHA25624ffdb941f7abae94e4892c644db06c9304d7d0b2cd67222f483205a0ed0c408
SHA5128d0dfa2d84863ff2db44289b740d2c955927f40cf89643f64a85a569bf9eb3f2e7f6544134703b5929276cdbbdf3e5bc30d804a0bb71405086b2d89e65c92598