Analysis
- max time kernel
101s - max time network
129s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
08/04/2024, 06:54
General
- Target e6e19f59f414cfe3c767ce6e2dfc2497_JaffaCakes118.xlsb
- Size 357KB
- Sample240408-hpga5sbc71
- SHA256 316e19fe0222dfaaffb7acc37c7df2944258d7851ccbb32ecc6c7b1ad9623689
Malware Config
Signatures
- Process spawned unexpected child process 3 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- Blocklisted process makes network request 4 IoCs
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 3 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious use of AdjustPrivilegeToken 64 IoCs
- Suspicious use of SetWindowsHookEx 20 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
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\e6e19f59f414cfe3c767ce6e2dfc2497_JaffaCakes118.xlsb"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\Wbem\wmic.exewmic process call create 'mshta C:\ProgramData\CJfOErafc.sct'2⤵
- Process spawned unexpected child process
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\mshta.exemshta C:\ProgramData\CJfOErafc.sct1⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\mshta.exemshta C:\\ProgramData\myEtyYLFcQomkUQH.sct2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\Wbem\wmic.exewmic process call create "rundll32.exe C:\\ProgramData\myEtyYLFcQomkUQH.dll GetDesktopDPI"3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\rundll32.exerundll32.exe C:\\ProgramData\myEtyYLFcQomkUQH.dll GetDesktopDPI1⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
CJfOErafc.sct
myEtyYLFcQomkUQH.dll
myEtyYLFcQomkUQH.sct
memory/4548-16-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-49-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-6-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-5-0x00007FF965F50000-0x00007FF965F60000-memory.dmp
memory/4548-7-0x00007FF965F50000-0x00007FF965F60000-memory.dmp
memory/4548-8-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-9-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-10-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-12-0x00007FF9638F0000-0x00007FF963900000-memory.dmp
memory/4548-11-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-13-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-14-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-15-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-0-0x00007FF965F50000-0x00007FF965F60000-memory.dmp
memory/4548-3-0x00007FF965F50000-0x00007FF965F60000-memory.dmp
memory/4548-17-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-66-0x00007FF965F50000-0x00007FF965F60000-memory.dmp
memory/4548-4-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-2-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-1-0x00007FF965F50000-0x00007FF965F60000-memory.dmp
memory/4548-19-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-50-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-18-0x00007FF9638F0000-0x00007FF963900000-memory.dmp
memory/4548-67-0x00007FF965F50000-0x00007FF965F60000-memory.dmp
memory/4548-68-0x00007FF965F50000-0x00007FF965F60000-memory.dmp
memory/4548-69-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-71-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-70-0x00007FF965F50000-0x00007FF965F60000-memory.dmp
memory/4548-73-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp
memory/4548-72-0x00007FF9A5ED0000-0x00007FF9A60C5000-memory.dmp