Analysis
- max time kernel
139s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system - submitted
17/05/2024, 17:47
Behavioral task
behavioral1
Sample
50b64ba34366fad2adb945ed87c4911d_JaffaCakes118.xls
Resource
win7-20240508-en
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
50b64ba34366fad2adb945ed87c4911d_JaffaCakes118.xls
Resource
win10v2004-20240426-en
11 signatures
150 seconds
General
- Target 50b64ba34366fad2adb945ed87c4911d_JaffaCakes118.xls
- Size 279KB
- Sample240517-wc8frabb67
- SHA256 5267210ae28394fdb5718e7304bb5840057d7d09b80a901964953078f46cd776
- MD5 50b64ba34366fad2adb945ed87c4911d
- SHA1 370be8397eb051e0a7b53000479b3fd6d72eb031
- SHA512 2b568a5f43e9bea054dd081dd8030fc088c9c62616173b97b144017418484ce54fa072f4ce55131afe7f8822239ae0736af5de193e5adc54a552029c13d7531a
- SSDEEP 6144:EJ/2oYVsOpIlo8WRVNgOk3hOdsylKlgryzc4bNhZF+E+W/gEaiKkJgia16cC5fJ4:qz2hmlfmpiHWiP4
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Loads dropped DLL 1 IoCs
pid Process 2984 EXCEL.EXE - Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE - Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE - NTFS ADS 1 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Local\Temp\{8900A8C4-401D-4139-878D-3F5F0064652F}\E12BD00A.png:Zone.Identifier EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2984 EXCEL.EXE - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2984 EXCEL.EXE - Suspicious use of SetWindowsHookEx 18 IoCs
pid Process 2984 EXCEL.EXE 2984 EXCEL.EXE 2984 EXCEL.EXE 2984 EXCEL.EXE 2984 EXCEL.EXE 2984 EXCEL.EXE 2984 EXCEL.EXE 2984 EXCEL.EXE 2984 EXCEL.EXE 2984 EXCEL.EXE 2984 EXCEL.EXE 2984 EXCEL.EXE 2984 EXCEL.EXE 2984 EXCEL.EXE 2984 EXCEL.EXE 2984 EXCEL.EXE 2984 EXCEL.EXE 2984 EXCEL.EXE - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2984 wrote to memory of 2196 2984 EXCEL.EXE 90 PID 2984 wrote to memory of 2196 2984 EXCEL.EXE 90 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
- Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\50b64ba34366fad2adb945ed87c4911d_JaffaCakes118.xls"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2984 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:2196
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\factory.xlsx
- Size 184KB
- SHA256 12d075a57c9a9f0893129aff4811af59726d0ae1265d9721556e73a77fde79e3
- MD5 4a2754ca49d1d595f43d6d8c3ddaf024
- SHA1 b214e5adcd53004303b25b7de8b4006245ab5d8b
- SHA512 0d3cbd61682a59eaa4e8bc33b0d5bcc21ecac92a13b8c9fb6b718f28112872f4456700d8a17341302dd26aa24c6c4b1bae740e8f779acac6cf4985e3d4fd6469
- SSDEEP 3072:RqqxLroGSD3Gj9c6ibh403hnxpFUfkuCPs1EOttKfkZY5kJw/DcEie1ScD:R3xLSD3GhXGuqnDFskPs1EGH2kJ4ie1f
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\masterbox2.dll
- Size 64KB
- SHA256 257bee57c5cac49ce0b5f9b160a3aaafde703ecc036cf4cf32975fc08c7f445e
- MD5 5467e81b6c5417af0dcc566605b13481
- SHA1 eeecc25656f290630dcfe30218cdb69bb0f316aa
- SHA512 baf888cd4fcd929b973fedbb791d5e1e320fd4fff0aa15372fa94a0d898e9942ac80bf8965caa5dc8565077ee9928aa6fa3997d7ab114914a08bd863a8789c48
- SSDEEP 768:W7dKxS6wQtWEt5IgKTOU9ERsqPJycJ0zNqpHEX8udtJxpvtMQRoiyDQh8jaJMjO3:Yi8sWIKTl6RVBS5U1wvCQWwym9gHePB
- MD5 SHA1 SHA512 SSDEEP