Analysis
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max time kernel
150s -
max time network
148s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
07-07-2022 04:24
Behavioral task
behavioral1
Sample
59352bc43028e13e48d15c3e423525c673b0331ae93ae8c26b8b1616d45d097a.xls
Resource
win10-20220414-en
General
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Target
59352bc43028e13e48d15c3e423525c673b0331ae93ae8c26b8b1616d45d097a.xls
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Size
95KB
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MD5
02e721c2ea0c68e3c151457c2d63b171
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SHA1
101bb107252330989f2a7925ee5382dcd64bd088
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SHA256
59352bc43028e13e48d15c3e423525c673b0331ae93ae8c26b8b1616d45d097a
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SHA512
a8375ab24b21b38d3236bd35d0a6a987e9addd1adb5f81a9a5890e69649f00adbe2b52e112a4aecfd3520fd335641269073eada64d6e096218aa61da4d31a27d
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 812 3220 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3984 3220 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1996 3220 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3776 3220 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 3220 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 3220 EXCEL.EXE 3220 EXCEL.EXE 3220 EXCEL.EXE 3220 EXCEL.EXE 3220 EXCEL.EXE 3220 EXCEL.EXE 3220 EXCEL.EXE 3220 EXCEL.EXE 3220 EXCEL.EXE 3220 EXCEL.EXE 3220 EXCEL.EXE 3220 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 3220 wrote to memory of 812 3220 EXCEL.EXE regsvr32.exe PID 3220 wrote to memory of 812 3220 EXCEL.EXE regsvr32.exe PID 3220 wrote to memory of 3984 3220 EXCEL.EXE regsvr32.exe PID 3220 wrote to memory of 3984 3220 EXCEL.EXE regsvr32.exe PID 3220 wrote to memory of 1996 3220 EXCEL.EXE regsvr32.exe PID 3220 wrote to memory of 1996 3220 EXCEL.EXE regsvr32.exe PID 3220 wrote to memory of 3776 3220 EXCEL.EXE regsvr32.exe PID 3220 wrote to memory of 3776 3220 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\59352bc43028e13e48d15c3e423525c673b0331ae93ae8c26b8b1616d45d097a.xls"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\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/812-263-0x0000000000000000-mapping.dmp
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memory/1996-265-0x0000000000000000-mapping.dmp
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memory/3220-117-0x00007FF7F6370000-0x00007FF7F6380000-memory.dmpFilesize
64KB
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memory/3220-118-0x00007FF7F6370000-0x00007FF7F6380000-memory.dmpFilesize
64KB
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memory/3220-119-0x00007FF7F6370000-0x00007FF7F6380000-memory.dmpFilesize
64KB
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memory/3220-120-0x00007FF7F6370000-0x00007FF7F6380000-memory.dmpFilesize
64KB
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memory/3220-129-0x00007FF7F3380000-0x00007FF7F3390000-memory.dmpFilesize
64KB
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memory/3220-130-0x00007FF7F3380000-0x00007FF7F3390000-memory.dmpFilesize
64KB
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memory/3776-268-0x0000000000000000-mapping.dmp
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memory/3984-264-0x0000000000000000-mapping.dmp