Analysis
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max time kernel
119s -
max time network
119s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
22-11-2024 09:12
Static task
static1
Behavioral task
behavioral1
Sample
f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe
Resource
win10v2004-20241007-en
General
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Target
f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe
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Size
11.0MB
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MD5
3a73e3f5ff0ad1e222cac36e03b9fe66
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SHA1
155126c64e86e8f6830dd377417bd750b3f0b6e3
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SHA256
f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4
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SHA512
b97bd61b89eafacf4e652a8f0ab9b284018d18911f4a5604a4e1ff3d16cbb4d1345265ee226d0dd26d1690fe4e3056ed682c659207b7a60ccd1a0e9ec73abc1c
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SSDEEP
49152:wNxtFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFg:WO
Malware Config
Extracted
tofsee
quadoil.ru
lakeflex.ru
Signatures
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Tofsee family
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Creates new service(s) 2 TTPs
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 812 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\thmoyars\ImagePath = "C:\\Windows\\SysWOW64\\thmoyars\\slzldxzm.exe" svchost.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe -
Deletes itself 1 IoCs
pid Process 4588 svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1992 slzldxzm.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1992 set thread context of 4588 1992 slzldxzm.exe 109 -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3588 sc.exe 4320 sc.exe 1704 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.
description 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
pid pid_target Process procid_target 5036 1832 WerFault.exe 83 1932 1992 WerFault.exe 97 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language slzldxzm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.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 -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 1832 wrote to memory of 4908 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 84 PID 1832 wrote to memory of 4908 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 84 PID 1832 wrote to memory of 4908 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 84 PID 1832 wrote to memory of 2532 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 87 PID 1832 wrote to memory of 2532 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 87 PID 1832 wrote to memory of 2532 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 87 PID 1832 wrote to memory of 3588 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 89 PID 1832 wrote to memory of 3588 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 89 PID 1832 wrote to memory of 3588 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 89 PID 1832 wrote to memory of 4320 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 93 PID 1832 wrote to memory of 4320 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 93 PID 1832 wrote to memory of 4320 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 93 PID 1832 wrote to memory of 1704 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 95 PID 1832 wrote to memory of 1704 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 95 PID 1832 wrote to memory of 1704 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 95 PID 1832 wrote to memory of 812 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 100 PID 1832 wrote to memory of 812 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 100 PID 1832 wrote to memory of 812 1832 f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe 100 PID 1992 wrote to memory of 4588 1992 slzldxzm.exe 109 PID 1992 wrote to memory of 4588 1992 slzldxzm.exe 109 PID 1992 wrote to memory of 4588 1992 slzldxzm.exe 109 PID 1992 wrote to memory of 4588 1992 slzldxzm.exe 109 PID 1992 wrote to memory of 4588 1992 slzldxzm.exe 109
Processes
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C:\Users\Admin\AppData\Local\Temp\f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe"C:\Users\Admin\AppData\Local\Temp\f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1832 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\thmoyars\2⤵
- System Location Discovery: System Language Discovery
PID:4908
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\slzldxzm.exe" C:\Windows\SysWOW64\thmoyars\2⤵
- System Location Discovery: System Language Discovery
PID:2532
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create thmoyars binPath= "C:\Windows\SysWOW64\thmoyars\slzldxzm.exe /d\"C:\Users\Admin\AppData\Local\Temp\f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:3588
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description thmoyars "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4320
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start thmoyars2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1704
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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:812
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1832 -s 6642⤵
- Program crash
PID:5036
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C:\Windows\SysWOW64\thmoyars\slzldxzm.exeC:\Windows\SysWOW64\thmoyars\slzldxzm.exe /d"C:\Users\Admin\AppData\Local\Temp\f497600b793c965a69df6cbc73af3df664b635fd098e463fab3d9badf0dccea4.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1992 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:4588
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1992 -s 5202⤵
- Program crash
PID:1932
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1832 -ip 18321⤵PID:2372
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1992 -ip 19921⤵PID:4824
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
Loading Replay Monitor...
Downloads
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Filesize
13.9MB
MD5b44425cb6dd82ef80e71d7e971f1ffb1
SHA146b614b18a50bd521f0fd747976bf28acdf523ff
SHA256361eedd66de8e1446b8526eda1c4bd6b2b838a804d01e29682170cef1dd5f1dc
SHA51229b424dd51f0ffa8c495ded04be86635d7888c8bed5d99855e69895e1b823569ceea6b1617787e4c3df09c012237adf2f550ebc2a11b507dacbc8e470d64bd0a