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Analysis
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max time kernel
148s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
23/12/2024, 14:17
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe
Resource
win10v2004-20241007-en
General
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Target
JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe
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Size
198KB
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MD5
3ec8e58a92565c4ced1145c1c72ab6ec
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SHA1
a34a09a7adc735bf169b9ec84d11f64f68132270
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SHA256
07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808
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SHA512
b8fab3c46dc352f6bc1e25d1df6a50620e3b6e212b4f2e7540fd2fd343420d83ba059e6e10ff7b419273254fe6a44e72226bf1a3c4fd9209ad768857e6f32e41
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SSDEEP
3072:NnrGi1mhhahmGJlLRwdSFK5KircPI1ZeNMkcx8EuSzsz:NrGi1mhZGJFGq0cPI1siuSz+
Malware Config
Extracted
tofsee
defeatwax.ru
refabyd.info
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 1488 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\gyyqkyet\ImagePath = "C:\\Windows\\SysWOW64\\gyyqkyet\\rpeqkgrh.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe -
Deletes itself 1 IoCs
pid Process 2664 svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2308 rpeqkgrh.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2308 set thread context of 2664 2308 rpeqkgrh.exe 105 -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2200 sc.exe 2112 sc.exe 4520 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 value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 3416 4376 WerFault.exe 84 4036 2308 WerFault.exe 96 -
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 cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rpeqkgrh.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 svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.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
description pid Process procid_target PID 4376 wrote to memory of 2284 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 85 PID 4376 wrote to memory of 2284 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 85 PID 4376 wrote to memory of 2284 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 85 PID 4376 wrote to memory of 2108 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 88 PID 4376 wrote to memory of 2108 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 88 PID 4376 wrote to memory of 2108 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 88 PID 4376 wrote to memory of 2200 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 90 PID 4376 wrote to memory of 2200 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 90 PID 4376 wrote to memory of 2200 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 90 PID 4376 wrote to memory of 2112 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 92 PID 4376 wrote to memory of 2112 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 92 PID 4376 wrote to memory of 2112 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 92 PID 4376 wrote to memory of 4520 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 94 PID 4376 wrote to memory of 4520 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 94 PID 4376 wrote to memory of 4520 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 94 PID 4376 wrote to memory of 1488 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 97 PID 4376 wrote to memory of 1488 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 97 PID 4376 wrote to memory of 1488 4376 JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe 97 PID 2308 wrote to memory of 2664 2308 rpeqkgrh.exe 105 PID 2308 wrote to memory of 2664 2308 rpeqkgrh.exe 105 PID 2308 wrote to memory of 2664 2308 rpeqkgrh.exe 105 PID 2308 wrote to memory of 2664 2308 rpeqkgrh.exe 105 PID 2308 wrote to memory of 2664 2308 rpeqkgrh.exe 105
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4376 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gyyqkyet\2⤵
- System Location Discovery: System Language Discovery
PID:2284
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rpeqkgrh.exe" C:\Windows\SysWOW64\gyyqkyet\2⤵
- System Location Discovery: System Language Discovery
PID:2108
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create gyyqkyet binPath= "C:\Windows\SysWOW64\gyyqkyet\rpeqkgrh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2200
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description gyyqkyet "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2112
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start gyyqkyet2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4520
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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:1488
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4376 -s 6802⤵
- Program crash
PID:3416
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C:\Windows\SysWOW64\gyyqkyet\rpeqkgrh.exeC:\Windows\SysWOW64\gyyqkyet\rpeqkgrh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2308 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:2664
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2308 -s 5082⤵
- Program crash
PID:4036
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4376 -ip 43761⤵PID:2640
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2308 -ip 23081⤵PID:3644
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
MD5f206afee80a55697a78cef08e13c1193
SHA16f4e10309389284504ac804c150aac94df6e1fb5
SHA2563a07da10309161b85c849fe9d5eccee083b711c1f4a25787d2057705b68e55a0
SHA5121d35946a08dd186b937aa7c53fe24951c32670436ba11543822dc553ed8bec591696a04a3f844b7d8d980dc7bb6580b27d8b562cb9fb1fb783b6fa8baf4798ba