Analysis
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max time kernel
127s -
max time network
147s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
07-07-2022 03:20
Behavioral task
behavioral1
Sample
d4ba309f9fa5588a76afaab1fe473a2fb4e703e6bb5c693f96dd6775035c27f1.xls
Resource
win10-20220414-en
General
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Target
d4ba309f9fa5588a76afaab1fe473a2fb4e703e6bb5c693f96dd6775035c27f1.xls
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Size
95KB
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MD5
a23cb7051874afafc985366f47c5bc0a
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SHA1
08ae9e6971e35b68ce8294671ed08ac1c21892f2
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SHA256
d4ba309f9fa5588a76afaab1fe473a2fb4e703e6bb5c693f96dd6775035c27f1
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SHA512
bb3452baa935d377e252aa028fc5bce1f2445cd8ac874fc75bf2ae6f50d759eba0eb270e2fe4f6876ce62a4e5e73c88134579b3b893d0519753d2bc844262241
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 3872 1276 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3852 1276 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3768 1276 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3312 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 3872 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 3872 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 3852 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 3852 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 3768 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 3768 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 3312 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 3312 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\d4ba309f9fa5588a76afaab1fe473a2fb4e703e6bb5c693f96dd6775035c27f1.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/1276-310-0x00007FFCDD480000-0x00007FFCDD490000-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/1276-313-0x00007FFCDD480000-0x00007FFCDD490000-memory.dmpFilesize
64KB
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memory/1276-312-0x00007FFCDD480000-0x00007FFCDD490000-memory.dmpFilesize
64KB
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memory/1276-311-0x00007FFCDD480000-0x00007FFCDD490000-memory.dmpFilesize
64KB
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memory/1276-116-0x00007FFCDD480000-0x00007FFCDD490000-memory.dmpFilesize
64KB
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memory/3312-271-0x0000000000000000-mapping.dmp
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memory/3768-268-0x0000000000000000-mapping.dmp
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memory/3852-267-0x0000000000000000-mapping.dmp
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memory/3872-266-0x0000000000000000-mapping.dmp