Analysis
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max time kernel
133s -
max time network
133s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 22:25
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-337804388.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-337804388.xls
Resource
win10
General
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Target
doc_pack-337804388.xls
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Size
62KB
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MD5
333e18be611f464a47ebdac07b988af2
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SHA1
5e71ca2333f763440a55f8ea1c1a98454f0f6eb4
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SHA256
6e1354b59898040f06a2335ee13486a326dbfa049e6f5a76afb8169ac0761183
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SHA512
e18b31993ff7fdd7a609a04ca69af82f885e2f89ee78f0798b0ba00f4a4f8d643e9bf490aeee8e2e0673ee2f0657301dc6cd368cf42cb04e5e31737207f4246a
Malware Config
Signatures
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Process spawned suspicious child process 1 IoCs
This child process is typically not spawned unless (for example) the parent process crashes. This typically indicates the parent process was unsuccessfully compromised.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1852 3104 DW20.EXE 66 -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3104 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3104 EXCEL.EXE 3104 EXCEL.EXE 1956 dwwin.exe 1956 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE 3104 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3104 wrote to memory of 1852 3104 EXCEL.EXE 76 PID 3104 wrote to memory of 1852 3104 EXCEL.EXE 76 PID 1852 wrote to memory of 1956 1852 DW20.EXE 77 PID 1852 wrote to memory of 1956 1852 DW20.EXE 77
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\doc_pack-337804388.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3104 -
C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE"C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE" -x -s 44882⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1852 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44883⤵
- Suspicious behavior: EnumeratesProcesses
PID:1956
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