Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
10-12-2024 18:02
Behavioral task
behavioral1
Sample
de03f2b1c1b13cf8e0cbb4818cf8c12c_JaffaCakes118.xls
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
de03f2b1c1b13cf8e0cbb4818cf8c12c_JaffaCakes118.xls
Resource
win10v2004-20241007-en
General
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Target
de03f2b1c1b13cf8e0cbb4818cf8c12c_JaffaCakes118.xls
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Size
85KB
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MD5
de03f2b1c1b13cf8e0cbb4818cf8c12c
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SHA1
deed5efa59761e76661470b87e8520acedce952e
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SHA256
db936924f807df5b2197b9e4443da196f8a561a137b136db48987163723542ae
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SHA512
bc9c97f6c7721db5481aa8d749efb4ea30f143e7e9739a8a7d71225945daeec4eb0c25c0dffd992133e44d9003ed45965b1e0b9fa229c3708acde99d258059d6
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SSDEEP
1536:4sss2T4u4WVbrzQ7ImZe7WDkbA23fM88ScJtXJK4NO:DWVbrzQ7ImuWDkZUjhJtXJTO
Malware Config
Signatures
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Process spawned unexpected child process 3 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3644 4088 cmd.exe 81 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2532 4088 cmd.exe 81 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 768 4088 cmd.exe 81 -
resource yara_rule behavioral2/files/0x000a000000023b6c-104.dat office_xlm_macros -
Deletes itself 1 IoCs
pid Process 4088 EXCEL.EXE -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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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 opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
NTFS ADS 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\99D75E00\:Zone.Identifier:$DATA EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4088 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
pid Process 4088 EXCEL.EXE 4088 EXCEL.EXE 4088 EXCEL.EXE 4088 EXCEL.EXE 4088 EXCEL.EXE 4088 EXCEL.EXE 4088 EXCEL.EXE 4088 EXCEL.EXE 4088 EXCEL.EXE 4088 EXCEL.EXE 4088 EXCEL.EXE 4088 EXCEL.EXE 4088 EXCEL.EXE 4088 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4088 wrote to memory of 768 4088 EXCEL.EXE 85 PID 4088 wrote to memory of 768 4088 EXCEL.EXE 85 PID 4088 wrote to memory of 2532 4088 EXCEL.EXE 86 PID 4088 wrote to memory of 2532 4088 EXCEL.EXE 86 PID 4088 wrote to memory of 3644 4088 EXCEL.EXE 87 PID 4088 wrote to memory of 3644 4088 EXCEL.EXE 87 PID 768 wrote to memory of 4320 768 cmd.exe 91 PID 768 wrote to memory of 4320 768 cmd.exe 91 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 4320 attrib.exe
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\de03f2b1c1b13cf8e0cbb4818cf8c12c_JaffaCakes118.xls"1⤵
- Deletes itself
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4088 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:768 -
C:\Windows\system32\attrib.exeattrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"3⤵
- Views/modifies file attributes
PID:4320
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
PID:2532
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
PID:3644
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
119KB
MD5287902efe389c9f88a639ca0f972ecac
SHA1b91db7f58043a54a2eb2c3566259ecba4c30d9e5
SHA256c9cddfe13a4ad60caab4d2531c1b72ffc6d731913e5da8791502b95bfba6f6ed
SHA5126664c1435d0b60971134fd4ba3e74106ccba9bc99843954107003d14386b0492a6a08b1f6797856bef2fd32c5b2a091bd020388b4538dd3d9c89caf598e8a27b
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
Filesize3KB
MD57f018f53412e197a0e3c614944ac8cd9
SHA1aa438242cd13d59f6cadce492e65b676093ee3d6
SHA2562ba8ead602ee4adcefda98812bfc258625a36ae6a89f6f0401c6d5a732a8869d
SHA51209cbe42e8c6407eaeed6d3e8f0173c3cbb6d6c9908c0cf7d223d6f864d5e1e3c6d87f0f3d67e1d03af426f1769a051e9305c018be68cecb587002f2b06c7fcaa