Analysis
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max time kernel
149s -
max time network
145s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
07-07-2022 04:40
Behavioral task
behavioral1
Sample
2a157f5427b99aca9e70fc3c476f7f7121d8e983271609dd9bed33a08ef7c66d.xls
Resource
win10-20220414-en
Behavioral task
behavioral2
Sample
2a157f5427b99aca9e70fc3c476f7f7121d8e983271609dd9bed33a08ef7c66d.xls
Resource
win10-20220414-en
General
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Target
2a157f5427b99aca9e70fc3c476f7f7121d8e983271609dd9bed33a08ef7c66d.xls
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Size
95KB
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MD5
cad1ee00d299cf39b3a54e568ae3b3b7
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SHA1
1afe2baa453e7edfb4e2694ea1bbc47603e0dd7f
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SHA256
2a157f5427b99aca9e70fc3c476f7f7121d8e983271609dd9bed33a08ef7c66d
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SHA512
4859af8005c7c2408b9739d87e986f856de6dacb84729607bddef607456a72eec705275830c1ab393d62383ba26574b0a2eec3a26d7f6190965d5305e942e91e
Malware Config
Extracted
https://edoraseguros.com.br/cgi-bin/jQNq9wlH1GXU/
http://earthmach.co.za/libraries/tWkZh9YrXbTd6IeX/
http://finvest.rs/wp-admin/Hr9nVNTIHgw59S/
http://efverstedt.se/5jjaV/w7fLEHJ20xn0qD/
Signatures
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Process spawned unexpected child process 4 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
regsvr32.exeregsvr32.exeregsvr32.exeregsvr32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3712 4296 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3700 4296 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3708 4296 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3328 4296 regsvr32.exe EXCEL.EXE -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription 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
Processes:
EXCEL.EXEdescription 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 4296 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 4296 EXCEL.EXE 4296 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 4296 EXCEL.EXE 4296 EXCEL.EXE 4296 EXCEL.EXE 4296 EXCEL.EXE 4296 EXCEL.EXE 4296 EXCEL.EXE 4296 EXCEL.EXE 4296 EXCEL.EXE 4296 EXCEL.EXE 4296 EXCEL.EXE 4296 EXCEL.EXE 4296 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 4296 wrote to memory of 3712 4296 EXCEL.EXE regsvr32.exe PID 4296 wrote to memory of 3712 4296 EXCEL.EXE regsvr32.exe PID 4296 wrote to memory of 3700 4296 EXCEL.EXE regsvr32.exe PID 4296 wrote to memory of 3700 4296 EXCEL.EXE regsvr32.exe PID 4296 wrote to memory of 3708 4296 EXCEL.EXE regsvr32.exe PID 4296 wrote to memory of 3708 4296 EXCEL.EXE regsvr32.exe PID 4296 wrote to memory of 3328 4296 EXCEL.EXE regsvr32.exe PID 4296 wrote to memory of 3328 4296 EXCEL.EXE regsvr32.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\2a157f5427b99aca9e70fc3c476f7f7121d8e983271609dd9bed33a08ef7c66d.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\soci1.ocx2⤵
- Process spawned unexpected child process
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\soci2.ocx2⤵
- Process spawned unexpected child process
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\soci3.ocx2⤵
- Process spawned unexpected child process
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\soci4.ocx2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/3328-253-0x0000000000000000-mapping.dmp
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memory/3700-251-0x0000000000000000-mapping.dmp
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memory/3708-252-0x0000000000000000-mapping.dmp
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memory/3712-250-0x0000000000000000-mapping.dmp
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memory/4296-114-0x00007FFC9F460000-0x00007FFC9F470000-memory.dmpFilesize
64KB
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memory/4296-115-0x00007FFC9F460000-0x00007FFC9F470000-memory.dmpFilesize
64KB
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memory/4296-116-0x00007FFC9F460000-0x00007FFC9F470000-memory.dmpFilesize
64KB
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memory/4296-117-0x00007FFC9F460000-0x00007FFC9F470000-memory.dmpFilesize
64KB
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memory/4296-126-0x00007FFC9C910000-0x00007FFC9C920000-memory.dmpFilesize
64KB
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memory/4296-127-0x00007FFC9C910000-0x00007FFC9C920000-memory.dmpFilesize
64KB