Analysis
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max time kernel
128s -
max time network
147s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
07-07-2022 03:47
Behavioral task
behavioral1
Sample
c1f6a7ca13f0cd23fcf3b3f6a3ea50af5f577a14db49fca39e7a948effdbaa47.xls
Resource
win10-20220414-en
General
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Target
c1f6a7ca13f0cd23fcf3b3f6a3ea50af5f577a14db49fca39e7a948effdbaa47.xls
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Size
95KB
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MD5
b657efde26c38344c1384424b3a0160f
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SHA1
c09e66e425593bf9141ca10cf148fa3bfef8d840
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SHA256
c1f6a7ca13f0cd23fcf3b3f6a3ea50af5f577a14db49fca39e7a948effdbaa47
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SHA512
7d920116fc2413b60e44259469eb79cf8cd08196a60d2fe9478bee3f19841cbfb69962d8fa362bf764d0ba5a792e8c0b56f0cdd2039eab18b807ab50880d6197
Malware Config
Extracted
http://www.sunflowerlaboratory.in/fonts/79Tq62ly/
http://dirigent.co.uk/vardagsekonomi/iC36jJ4J1cf/
http://agtrade.hu/images/kiQYmOs2tSKq/
https://www.zachboyle.com/wp-admin/EA470ZrTGNkuA/
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 3276 1276 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3588 1276 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2928 1276 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2712 1276 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 1276 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 1276 EXCEL.EXE 1276 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1276 wrote to memory of 3276 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 3276 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 3588 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 3588 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 2928 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 2928 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 2712 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 2712 1276 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\c1f6a7ca13f0cd23fcf3b3f6a3ea50af5f577a14db49fca39e7a948effdbaa47.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
Loading Replay Monitor...
Downloads
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memory/1276-292-0x00007FFCDD480000-0x00007FFCDD490000-memory.dmpFilesize
64KB
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memory/1276-117-0x00007FFCDD480000-0x00007FFCDD490000-memory.dmpFilesize
64KB
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memory/1276-118-0x00007FFCDD480000-0x00007FFCDD490000-memory.dmpFilesize
64KB
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memory/1276-119-0x00007FFCDD480000-0x00007FFCDD490000-memory.dmpFilesize
64KB
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memory/1276-128-0x00007FFCDA930000-0x00007FFCDA940000-memory.dmpFilesize
64KB
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memory/1276-129-0x00007FFCDA930000-0x00007FFCDA940000-memory.dmpFilesize
64KB
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memory/1276-295-0x00007FFCDD480000-0x00007FFCDD490000-memory.dmpFilesize
64KB
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memory/1276-294-0x00007FFCDD480000-0x00007FFCDD490000-memory.dmpFilesize
64KB
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memory/1276-293-0x00007FFCDD480000-0x00007FFCDD490000-memory.dmpFilesize
64KB
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memory/1276-116-0x00007FFCDD480000-0x00007FFCDD490000-memory.dmpFilesize
64KB
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memory/2712-255-0x0000000000000000-mapping.dmp
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memory/2928-252-0x0000000000000000-mapping.dmp
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memory/3276-250-0x0000000000000000-mapping.dmp
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memory/3588-251-0x0000000000000000-mapping.dmp