Analysis
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max time kernel
148s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
30-08-2024 23:19
Static task
static1
Behavioral task
behavioral1
Sample
3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe
Resource
win10v2004-20240802-en
General
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Target
3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe
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Size
10.9MB
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MD5
2f0b4b4819d48ff7ba4dbeb258a93189
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SHA1
98067909fa21b0bf107449206405ac8b13e5c776
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SHA256
3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4
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SHA512
090e957459548ed42424f07cb387664bff76d0efcc5b36943339b909290696496738c0b4586f446df4f6c0f1aa4faccb6ad66aab404a8775e7146491b4cd16e1
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SSDEEP
6144:HLmhaXrxJHCx7HdqAT7mvs/bNAk3B79NmVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV1:HLmhaXrxJHuHdPT1n9N
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 4148 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\rmnjkcpo\ImagePath = "C:\\Windows\\SysWOW64\\rmnjkcpo\\oavszyym.exe" svchost.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe -
Deletes itself 1 IoCs
Processes:
svchost.exepid process 3008 svchost.exe -
Executes dropped EXE 1 IoCs
Processes:
oavszyym.exepid process 3332 oavszyym.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
oavszyym.exedescription pid process target process PID 3332 set thread context of 3008 3332 oavszyym.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 4812 sc.exe 5028 sc.exe 4160 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 3876 4604 WerFault.exe 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe 3836 3332 WerFault.exe oavszyym.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.exeoavszyym.exesvchost.exe3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exesc.exesc.exenetsh.execmd.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 oavszyym.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.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 -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exeoavszyym.exedescription pid process target process PID 4604 wrote to memory of 5076 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe cmd.exe PID 4604 wrote to memory of 5076 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe cmd.exe PID 4604 wrote to memory of 5076 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe cmd.exe PID 4604 wrote to memory of 3268 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe cmd.exe PID 4604 wrote to memory of 3268 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe cmd.exe PID 4604 wrote to memory of 3268 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe cmd.exe PID 4604 wrote to memory of 4812 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe sc.exe PID 4604 wrote to memory of 4812 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe sc.exe PID 4604 wrote to memory of 4812 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe sc.exe PID 4604 wrote to memory of 5028 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe sc.exe PID 4604 wrote to memory of 5028 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe sc.exe PID 4604 wrote to memory of 5028 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe sc.exe PID 4604 wrote to memory of 4160 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe sc.exe PID 4604 wrote to memory of 4160 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe sc.exe PID 4604 wrote to memory of 4160 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe sc.exe PID 4604 wrote to memory of 4148 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe netsh.exe PID 4604 wrote to memory of 4148 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe netsh.exe PID 4604 wrote to memory of 4148 4604 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe netsh.exe PID 3332 wrote to memory of 3008 3332 oavszyym.exe svchost.exe PID 3332 wrote to memory of 3008 3332 oavszyym.exe svchost.exe PID 3332 wrote to memory of 3008 3332 oavszyym.exe svchost.exe PID 3332 wrote to memory of 3008 3332 oavszyym.exe svchost.exe PID 3332 wrote to memory of 3008 3332 oavszyym.exe svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe"C:\Users\Admin\AppData\Local\Temp\3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4604 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rmnjkcpo\2⤵
- System Location Discovery: System Language Discovery
PID:5076 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oavszyym.exe" C:\Windows\SysWOW64\rmnjkcpo\2⤵
- System Location Discovery: System Language Discovery
PID:3268 -
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create rmnjkcpo binPath= "C:\Windows\SysWOW64\rmnjkcpo\oavszyym.exe /d\"C:\Users\Admin\AppData\Local\Temp\3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4812 -
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description rmnjkcpo "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:5028 -
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start rmnjkcpo2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4160 -
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:4148 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4604 -s 10402⤵
- Program crash
PID:3876
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C:\Windows\SysWOW64\rmnjkcpo\oavszyym.exeC:\Windows\SysWOW64\rmnjkcpo\oavszyym.exe /d"C:\Users\Admin\AppData\Local\Temp\3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3332 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:3008 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3332 -s 5162⤵
- Program crash
PID:3836
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4604 -ip 46041⤵PID:2184
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3332 -ip 33321⤵PID:1916
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
13.1MB
MD52e948cd7ef6fd65291534d45c66bc4e2
SHA1ee9ec1e13f002cb3279d48b8c882ccf64bd74979
SHA256644f4915439369fe7d7f3b594bc7204d08e02952f095034abeccbd3ae698acf1
SHA512ac7234468efbeabf9a80b20ebc0b2eb66ab9e4f813ad37ecb9ea7494c954d4a84e6b31859ef0a72c74335fdee58cfb9db45aa21fb6c8b20c8b0bcf8a4e1aa776