Analysis
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max time kernel
149s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
27-11-2024 13:24
Behavioral task
behavioral1
Sample
a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe
Resource
win7-20240903-en
General
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Target
a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe
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Size
293KB
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MD5
a80d9f57d44c84cd334d5ee47e8e4c99
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SHA1
7cd82e1a5b713c0500b19660ed7f5f172f0b2e1c
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SHA256
61ab7b39c2dbfbd774a8f248bb82e01b7bf561cc33f1b9650f24d9c87661545f
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SHA512
213436f307ccabbca79796d44c43ef7c01e6eb177089d7f0ca98bbf60a8db9e1d0e9af42021a234d67ce97f7dac6371cd60e82236f76d4f011320d9b88ae0c03
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SSDEEP
6144:yz+ZIja7JiVzDfdUITRilQ37imhVltGNPl4/fRq4vTBxvVjk5CKO/:yz+4KMVzDfrTRYQ3+WltCiHE4vTB3cw
Malware Config
Signatures
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Darkcomet family
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe" a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe -
Modifies firewall policy service 3 TTPs 3 IoCs
description ioc Process 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 = "1" winupdate.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" winupdate.exe -
Modifies security service 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" winupdate.exe -
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" winupdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" winupdate.exe -
Disables Task Manager via registry modification
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate winupdate.exe -
Executes dropped EXE 1 IoCs
pid Process 2740 winupdate.exe -
Loads dropped DLL 4 IoCs
pid Process 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe 2740 winupdate.exe 2740 winupdate.exe 2740 winupdate.exe -
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" winupdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" winupdate.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe" a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe -
resource yara_rule behavioral1/memory/2068-0-0x0000000000400000-0x00000000004CD000-memory.dmp upx behavioral1/files/0x000700000001878d-12.dat upx behavioral1/memory/2068-15-0x0000000000400000-0x00000000004CD000-memory.dmp upx behavioral1/memory/2740-23-0x0000000000400000-0x00000000004CD000-memory.dmp upx behavioral1/memory/2740-24-0x0000000000400000-0x00000000004CD000-memory.dmp upx behavioral1/memory/2740-25-0x0000000000400000-0x00000000004CD000-memory.dmp upx behavioral1/memory/2740-26-0x0000000000400000-0x00000000004CD000-memory.dmp upx behavioral1/memory/2740-27-0x0000000000400000-0x00000000004CD000-memory.dmp upx behavioral1/memory/2740-28-0x0000000000400000-0x00000000004CD000-memory.dmp upx behavioral1/memory/2740-29-0x0000000000400000-0x00000000004CD000-memory.dmp upx behavioral1/memory/2740-30-0x0000000000400000-0x00000000004CD000-memory.dmp upx behavioral1/memory/2740-31-0x0000000000400000-0x00000000004CD000-memory.dmp upx behavioral1/memory/2740-32-0x0000000000400000-0x00000000004CD000-memory.dmp upx behavioral1/memory/2740-33-0x0000000000400000-0x00000000004CD000-memory.dmp upx behavioral1/memory/2740-34-0x0000000000400000-0x00000000004CD000-memory.dmp upx behavioral1/memory/2740-35-0x0000000000400000-0x00000000004CD000-memory.dmp upx behavioral1/memory/2740-36-0x0000000000400000-0x00000000004CD000-memory.dmp upx behavioral1/memory/2740-37-0x0000000000400000-0x00000000004CD000-memory.dmp upx -
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 3 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 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language DllHost.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.
description ioc Process 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 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 winupdate.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier winupdate.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2740 winupdate.exe -
Suspicious use of AdjustPrivilegeToken 46 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeSecurityPrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeTakeOwnershipPrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeLoadDriverPrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeSystemProfilePrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeSystemtimePrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeProfSingleProcessPrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeIncBasePriorityPrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeCreatePagefilePrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeBackupPrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeRestorePrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeShutdownPrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeDebugPrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeSystemEnvironmentPrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeChangeNotifyPrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeRemoteShutdownPrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeUndockPrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeManageVolumePrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeImpersonatePrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeCreateGlobalPrivilege 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: 33 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: 34 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: 35 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe Token: SeIncreaseQuotaPrivilege 2740 winupdate.exe Token: SeSecurityPrivilege 2740 winupdate.exe Token: SeTakeOwnershipPrivilege 2740 winupdate.exe Token: SeLoadDriverPrivilege 2740 winupdate.exe Token: SeSystemProfilePrivilege 2740 winupdate.exe Token: SeSystemtimePrivilege 2740 winupdate.exe Token: SeProfSingleProcessPrivilege 2740 winupdate.exe Token: SeIncBasePriorityPrivilege 2740 winupdate.exe Token: SeCreatePagefilePrivilege 2740 winupdate.exe Token: SeBackupPrivilege 2740 winupdate.exe Token: SeRestorePrivilege 2740 winupdate.exe Token: SeShutdownPrivilege 2740 winupdate.exe Token: SeDebugPrivilege 2740 winupdate.exe Token: SeSystemEnvironmentPrivilege 2740 winupdate.exe Token: SeChangeNotifyPrivilege 2740 winupdate.exe Token: SeRemoteShutdownPrivilege 2740 winupdate.exe Token: SeUndockPrivilege 2740 winupdate.exe Token: SeManageVolumePrivilege 2740 winupdate.exe Token: SeImpersonatePrivilege 2740 winupdate.exe Token: SeCreateGlobalPrivilege 2740 winupdate.exe Token: 33 2740 winupdate.exe Token: 34 2740 winupdate.exe Token: 35 2740 winupdate.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2128 DllHost.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2128 DllHost.exe 2128 DllHost.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2068 wrote to memory of 2740 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe 31 PID 2068 wrote to memory of 2740 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe 31 PID 2068 wrote to memory of 2740 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe 31 PID 2068 wrote to memory of 2740 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe 31 PID 2068 wrote to memory of 2740 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe 31 PID 2068 wrote to memory of 2740 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe 31 PID 2068 wrote to memory of 2740 2068 a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe 31 -
System policy modification 1 TTPs 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion winupdate.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern winupdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1" winupdate.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\a80d9f57d44c84cd334d5ee47e8e4c99_JaffaCakes118.exe"1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Loads dropped DLL
- Adds Run key to start application
- 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:2068 -
C:\Windupdt\winupdate.exe"C:\Windupdt\winupdate.exe"2⤵
- Modifies firewall policy service
- Modifies security service
- Windows security bypass
- Checks BIOS information in registry
- Executes dropped EXE
- Loads dropped DLL
- Windows security modification
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- System policy modification
PID:2740
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:2128
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
2Windows Service
2Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Defense Evasion
Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
2Modify Registry
7Replay Monitor
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Downloads
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Filesize
12KB
MD54cc2bbffd350fdc08f4ec4a6a3e1db62
SHA10a4b6f7b67fec89c20e1e1aebdd104d4835e9403
SHA25662d89b4ebc3d2a2e7d8257fa77112b19fc13e6e2921cb9da556fd4699e0c2412
SHA512e8325d671f78206ec8293bebc6c10ffe36a760889f9725d3005d8952342d066220e7e523c814ed433277c59d685b3a9ac8f51c7863265b61fa7c9a77738ca452
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Filesize
293KB
MD5a80d9f57d44c84cd334d5ee47e8e4c99
SHA17cd82e1a5b713c0500b19660ed7f5f172f0b2e1c
SHA25661ab7b39c2dbfbd774a8f248bb82e01b7bf561cc33f1b9650f24d9c87661545f
SHA512213436f307ccabbca79796d44c43ef7c01e6eb177089d7f0ca98bbf60a8db9e1d0e9af42021a234d67ce97f7dac6371cd60e82236f76d4f011320d9b88ae0c03