Analysis
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max time kernel
145s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
31-08-2024 00:48
Static task
static1
Behavioral task
behavioral1
Sample
f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe
Resource
win10v2004-20240802-en
General
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Target
f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe
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Size
11.8MB
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MD5
4fece95c5138be47dc60bef4279def37
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SHA1
1a8feffb0571f72236b16aeffd5223d0ed2400c4
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SHA256
f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705
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SHA512
a4c40a3d0963d7ce1d2b15f67e382964fb26a4f52509f770f7f7f6ceeedaa34050f3a13734f70f5f6eb03beb0b03cbc673ab9d7835855bdbf2f9de970feb81d6
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SSDEEP
196608:p4TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTn:p
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 5056 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\onsomvyc\ImagePath = "C:\\Windows\\SysWOW64\\onsomvyc\\yojvpbfx.exe" svchost.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe -
Deletes itself 1 IoCs
Processes:
svchost.exepid process 2512 svchost.exe -
Executes dropped EXE 1 IoCs
Processes:
yojvpbfx.exepid process 2840 yojvpbfx.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
yojvpbfx.exedescription pid process target process PID 2840 set thread context of 2512 2840 yojvpbfx.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 1764 sc.exe 4588 sc.exe 4848 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 4840 4076 WerFault.exe f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe 4108 2840 WerFault.exe yojvpbfx.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:
f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.execmd.exesc.exesc.exesc.exenetsh.execmd.exeyojvpbfx.exesvchost.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe 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 sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language yojvpbfx.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exeyojvpbfx.exedescription pid process target process PID 4076 wrote to memory of 2112 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe cmd.exe PID 4076 wrote to memory of 2112 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe cmd.exe PID 4076 wrote to memory of 2112 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe cmd.exe PID 4076 wrote to memory of 4980 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe cmd.exe PID 4076 wrote to memory of 4980 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe cmd.exe PID 4076 wrote to memory of 4980 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe cmd.exe PID 4076 wrote to memory of 1764 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe sc.exe PID 4076 wrote to memory of 1764 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe sc.exe PID 4076 wrote to memory of 1764 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe sc.exe PID 4076 wrote to memory of 4588 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe sc.exe PID 4076 wrote to memory of 4588 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe sc.exe PID 4076 wrote to memory of 4588 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe sc.exe PID 4076 wrote to memory of 4848 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe sc.exe PID 4076 wrote to memory of 4848 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe sc.exe PID 4076 wrote to memory of 4848 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe sc.exe PID 4076 wrote to memory of 5056 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe netsh.exe PID 4076 wrote to memory of 5056 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe netsh.exe PID 4076 wrote to memory of 5056 4076 f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe netsh.exe PID 2840 wrote to memory of 2512 2840 yojvpbfx.exe svchost.exe PID 2840 wrote to memory of 2512 2840 yojvpbfx.exe svchost.exe PID 2840 wrote to memory of 2512 2840 yojvpbfx.exe svchost.exe PID 2840 wrote to memory of 2512 2840 yojvpbfx.exe svchost.exe PID 2840 wrote to memory of 2512 2840 yojvpbfx.exe svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe"C:\Users\Admin\AppData\Local\Temp\f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4076 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\onsomvyc\2⤵
- System Location Discovery: System Language Discovery
PID:2112 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yojvpbfx.exe" C:\Windows\SysWOW64\onsomvyc\2⤵
- System Location Discovery: System Language Discovery
PID:4980 -
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create onsomvyc binPath= "C:\Windows\SysWOW64\onsomvyc\yojvpbfx.exe /d\"C:\Users\Admin\AppData\Local\Temp\f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1764 -
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description onsomvyc "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4588 -
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start onsomvyc2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4848 -
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:5056 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4076 -s 6002⤵
- Program crash
PID:4840
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C:\Windows\SysWOW64\onsomvyc\yojvpbfx.exeC:\Windows\SysWOW64\onsomvyc\yojvpbfx.exe /d"C:\Users\Admin\AppData\Local\Temp\f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2840 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:2512 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2840 -s 5082⤵
- Program crash
PID:4108
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4076 -ip 40761⤵PID:4828
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2840 -ip 28401⤵PID:3372
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
11.8MB
MD5c0cb7788723f0e04c86a6abfd791d59b
SHA16b4aefc547bc9a6863258dd06a78dda33383785d
SHA25632f8631743f6111df3e734bd6a188e5b07a2193a0be3d65aeaecc5fce055a825
SHA51248c2ac3af39e07026f0e772ee50a915a5569b5c310131136f64a25b4584ca7608ab1f4853a9ae9fe71ebd29fa1905af110baaf99129445ece19963f916c96dc1