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Analysis
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max time kernel
149s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
15/12/2024, 10:35
Static task
static1
Behavioral task
behavioral1
Sample
f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe
Resource
win10v2004-20241007-en
General
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Target
f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe
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Size
12.2MB
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MD5
f399ef025b4aad20f8d6bc1e3e23822d
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SHA1
225ca5bec26218e9b2ac60ff741c5aa8dabe243a
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SHA256
e72446ec15432b1960fa9fe6a6e468a6461433daf3e6cac79ad953ce0d10c686
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SHA512
d9b6fdc3207fccd6e55d037c2f0111ff07e4c03304e6b1095e2388a38c3c666e349c949d337d4bc222938cb87a0bbd69c1eac5bbb8509febc593d235cae38a33
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SSDEEP
24576:DRQITb1qsssssssssssssssssssssssssssssssssssssssssssssssssssssssr:n
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 4396 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\bmxqvrfx\ImagePath = "C:\\Windows\\SysWOW64\\bmxqvrfx\\fdnllbka.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe -
Deletes itself 1 IoCs
pid Process 2968 svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1656 fdnllbka.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1656 set thread context of 2968 1656 fdnllbka.exe 101 -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1824 sc.exe 232 sc.exe 4032 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 3840 4796 WerFault.exe 82 696 1656 WerFault.exe 94 -
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 svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language fdnllbka.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 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 4796 wrote to memory of 1004 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 83 PID 4796 wrote to memory of 1004 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 83 PID 4796 wrote to memory of 1004 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 83 PID 4796 wrote to memory of 408 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 85 PID 4796 wrote to memory of 408 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 85 PID 4796 wrote to memory of 408 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 85 PID 4796 wrote to memory of 1824 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 87 PID 4796 wrote to memory of 1824 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 87 PID 4796 wrote to memory of 1824 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 87 PID 4796 wrote to memory of 232 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 90 PID 4796 wrote to memory of 232 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 90 PID 4796 wrote to memory of 232 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 90 PID 4796 wrote to memory of 4032 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 92 PID 4796 wrote to memory of 4032 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 92 PID 4796 wrote to memory of 4032 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 92 PID 4796 wrote to memory of 4396 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 95 PID 4796 wrote to memory of 4396 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 95 PID 4796 wrote to memory of 4396 4796 f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe 95 PID 1656 wrote to memory of 2968 1656 fdnllbka.exe 101 PID 1656 wrote to memory of 2968 1656 fdnllbka.exe 101 PID 1656 wrote to memory of 2968 1656 fdnllbka.exe 101 PID 1656 wrote to memory of 2968 1656 fdnllbka.exe 101 PID 1656 wrote to memory of 2968 1656 fdnllbka.exe 101
Processes
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C:\Users\Admin\AppData\Local\Temp\f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4796 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bmxqvrfx\2⤵
- System Location Discovery: System Language Discovery
PID:1004
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fdnllbka.exe" C:\Windows\SysWOW64\bmxqvrfx\2⤵
- System Location Discovery: System Language Discovery
PID:408
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create bmxqvrfx binPath= "C:\Windows\SysWOW64\bmxqvrfx\fdnllbka.exe /d\"C:\Users\Admin\AppData\Local\Temp\f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1824
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description bmxqvrfx "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:232
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start bmxqvrfx2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4032
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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:4396
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4796 -s 10282⤵
- Program crash
PID:3840
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C:\Windows\SysWOW64\bmxqvrfx\fdnllbka.exeC:\Windows\SysWOW64\bmxqvrfx\fdnllbka.exe /d"C:\Users\Admin\AppData\Local\Temp\f399ef025b4aad20f8d6bc1e3e23822d_JaffaCakes118.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1656 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:2968
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 5122⤵
- Program crash
PID:696
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4796 -ip 47961⤵PID:1488
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1656 -ip 16561⤵PID:3220
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
12.3MB
MD55352f2ba23b1fad6c3bc1d0f25e90987
SHA160f6c8f83cea3b5faa09d7edcc415b0e1b251409
SHA2567728f62cc2f3b1e708be06fd9b944705c849d86b89b71fdf7acbc9475950c367
SHA51240a6f7d0ae65ab0541497376b3076ed1ccc8955b8e8b4cdc803a71a73cf25d49bb5f4ece476574420f63d6b649abe27e00efa1a63e54c1f11323bba0352c1441