Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
24-10-2024 06:33
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
72b3881c944a5b65102974cd718bd13a_JaffaCakes118.exe
Resource
win7-20240903-en
windows7-x64
14 signatures
150 seconds
General
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Target
72b3881c944a5b65102974cd718bd13a_JaffaCakes118.exe
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Size
362KB
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MD5
72b3881c944a5b65102974cd718bd13a
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SHA1
80e1defffd848951eeb859d1720fba6809a60d27
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SHA256
7ec6eb6f91ee0c13f4b98dd9f3bddde62a22e1244111b3e3c27a51a42130af39
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SHA512
962a72f035d5370248989b2ccecda7fc64d3798fc7d55e5ee0a1fbe109db7c613c6fb56edbeec8be1449c253cf3a8017ff83da36c47dc6d29d8777c77f0d4e76
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SSDEEP
6144:gFw8wzBhaEUJ45mnk3PB4y6J1MhPrycmXN5BO9UY9FOnZKNBwgqFeOsmVmrvVry1:gFszBhqS5mEB+J1M52bk+n6BwVFeOqVy
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
test.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe" test.exe -
Modifies firewall policy service 3 TTPs 3 IoCs
Processes:
winupdate.exedescription ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" winupdate.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile winupdate.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" winupdate.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
test.exewinupdate.exedescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate test.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate winupdate.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
72b3881c944a5b65102974cd718bd13a_JaffaCakes118.exetest.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation 72b3881c944a5b65102974cd718bd13a_JaffaCakes118.exe Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation test.exe -
Executes dropped EXE 2 IoCs
Processes:
test.exewinupdate.exepid Process 4116 test.exe 4544 winupdate.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
test.exenotepad.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe" test.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe" notepad.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
72b3881c944a5b65102974cd718bd13a_JaffaCakes118.exetest.exenotepad.exewinupdate.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 72b3881c944a5b65102974cd718bd13a_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language test.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language notepad.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winupdate.exe -
Checks processor information in registry 2 TTPs 8 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
test.exewinupdate.exedescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier test.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier winupdate.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 test.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString test.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier test.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
Processes:
test.exewinupdate.exedescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier test.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier winupdate.exe -
Modifies registry class 1 IoCs
Processes:
test.exedescription ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ test.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
Processes:
test.exewinupdate.exedescription pid Process Token: SeIncreaseQuotaPrivilege 4116 test.exe Token: SeSecurityPrivilege 4116 test.exe Token: SeTakeOwnershipPrivilege 4116 test.exe Token: SeLoadDriverPrivilege 4116 test.exe Token: SeSystemProfilePrivilege 4116 test.exe Token: SeSystemtimePrivilege 4116 test.exe Token: SeProfSingleProcessPrivilege 4116 test.exe Token: SeIncBasePriorityPrivilege 4116 test.exe Token: SeCreatePagefilePrivilege 4116 test.exe Token: SeBackupPrivilege 4116 test.exe Token: SeRestorePrivilege 4116 test.exe Token: SeShutdownPrivilege 4116 test.exe Token: SeDebugPrivilege 4116 test.exe Token: SeSystemEnvironmentPrivilege 4116 test.exe Token: SeChangeNotifyPrivilege 4116 test.exe Token: SeRemoteShutdownPrivilege 4116 test.exe Token: SeUndockPrivilege 4116 test.exe Token: SeManageVolumePrivilege 4116 test.exe Token: SeImpersonatePrivilege 4116 test.exe Token: SeCreateGlobalPrivilege 4116 test.exe Token: 33 4116 test.exe Token: 34 4116 test.exe Token: 35 4116 test.exe Token: 36 4116 test.exe Token: SeIncreaseQuotaPrivilege 4544 winupdate.exe Token: SeSecurityPrivilege 4544 winupdate.exe Token: SeTakeOwnershipPrivilege 4544 winupdate.exe Token: SeLoadDriverPrivilege 4544 winupdate.exe Token: SeSystemProfilePrivilege 4544 winupdate.exe Token: SeSystemtimePrivilege 4544 winupdate.exe Token: SeProfSingleProcessPrivilege 4544 winupdate.exe Token: SeIncBasePriorityPrivilege 4544 winupdate.exe Token: SeCreatePagefilePrivilege 4544 winupdate.exe Token: SeBackupPrivilege 4544 winupdate.exe Token: SeRestorePrivilege 4544 winupdate.exe Token: SeShutdownPrivilege 4544 winupdate.exe Token: SeDebugPrivilege 4544 winupdate.exe Token: SeSystemEnvironmentPrivilege 4544 winupdate.exe Token: SeChangeNotifyPrivilege 4544 winupdate.exe Token: SeRemoteShutdownPrivilege 4544 winupdate.exe Token: SeUndockPrivilege 4544 winupdate.exe Token: SeManageVolumePrivilege 4544 winupdate.exe Token: SeImpersonatePrivilege 4544 winupdate.exe Token: SeCreateGlobalPrivilege 4544 winupdate.exe Token: 33 4544 winupdate.exe Token: 34 4544 winupdate.exe Token: 35 4544 winupdate.exe Token: 36 4544 winupdate.exe -
Suspicious use of WriteProcessMemory 35 IoCs
Processes:
72b3881c944a5b65102974cd718bd13a_JaffaCakes118.exetest.exewinupdate.exedescription pid Process procid_target PID 5036 wrote to memory of 4116 5036 72b3881c944a5b65102974cd718bd13a_JaffaCakes118.exe 85 PID 5036 wrote to memory of 4116 5036 72b3881c944a5b65102974cd718bd13a_JaffaCakes118.exe 85 PID 5036 wrote to memory of 4116 5036 72b3881c944a5b65102974cd718bd13a_JaffaCakes118.exe 85 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 2272 4116 test.exe 86 PID 4116 wrote to memory of 620 4116 test.exe 87 PID 4116 wrote to memory of 620 4116 test.exe 87 PID 4116 wrote to memory of 620 4116 test.exe 87 PID 4116 wrote to memory of 4544 4116 test.exe 90 PID 4116 wrote to memory of 4544 4116 test.exe 90 PID 4116 wrote to memory of 4544 4116 test.exe 90 PID 4544 wrote to memory of 4208 4544 winupdate.exe 91 PID 4544 wrote to memory of 4208 4544 winupdate.exe 91 PID 4544 wrote to memory of 4208 4544 winupdate.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\72b3881c944a5b65102974cd718bd13a_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\72b3881c944a5b65102974cd718bd13a_JaffaCakes118.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5036 -
C:\Users\Admin\AppData\Local\Temp\test.exe"C:\Users\Admin\AppData\Local\Temp\test.exe"2⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4116 -
C:\Windows\SysWOW64\notepad.exenotepad3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
PID:2272
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.exe"3⤵PID:620
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C:\Windupdt\winupdate.exe"C:\Windupdt\winupdate.exe"3⤵
- Modifies firewall policy service
- Checks BIOS information in registry
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4544 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.exe"4⤵PID:4208
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
3Replay Monitor
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Downloads
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Filesize
690KB
MD5765fc776cdb4b56c5dabe62e0d80cb15
SHA1cc4a7f5b201e5ef6ab95fdfe9bea5b66b94c798c
SHA256e66f25c91c1fc5551d81ee62b7f9aa2d0d79acc0bd85fb3441a715bdf408cbad
SHA51251c60ce71d1ccebe76a9ca87703cd646fd26e173f248e784095577766fafb7a389fedd12225374eb63e3e3197a01aedb74d723967a8fd42db398047b5feeba55