Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10_x64 -
resource
win10-20220310-en -
submitted
30-03-2022 06:50
Behavioral task
behavioral1
Sample
3aa5c7eff28de190945d455033507e5f8e03536ca5caa632dcff83def469b6a0.xls
Resource
win10-20220223-en
Behavioral task
behavioral2
Sample
3aa5c7eff28de190945d455033507e5f8e03536ca5caa632dcff83def469b6a0.xls
Resource
win10-20220310-en
General
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Target
3aa5c7eff28de190945d455033507e5f8e03536ca5caa632dcff83def469b6a0.xls
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Size
106KB
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MD5
8b572f837f642c6b485cc98fc3efb475
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SHA1
fdc5171b02ea1151018d1ac551d8e22402df4e5d
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SHA256
3aa5c7eff28de190945d455033507e5f8e03536ca5caa632dcff83def469b6a0
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SHA512
a97ca28199a9ccf95c672364ce9835678474d140678b060207636aa378b517ba5648b987f93a1910496559c2134157dc3959acd0b0091f6002308d1cab7fbb6a
Malware Config
Extracted
http://dougveeder.com/cgi-bin/xJ91ZttGRioQ7IUL/
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1856 3332 regsvr32.exe 68 -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process 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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3332 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3332 EXCEL.EXE 3332 EXCEL.EXE 3332 EXCEL.EXE 3332 EXCEL.EXE 3332 EXCEL.EXE 3332 EXCEL.EXE 3332 EXCEL.EXE 3332 EXCEL.EXE 3332 EXCEL.EXE 3332 EXCEL.EXE 3332 EXCEL.EXE 3332 EXCEL.EXE -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3332 wrote to memory of 1856 3332 EXCEL.EXE 71 PID 3332 wrote to memory of 1856 3332 EXCEL.EXE 71 PID 3332 wrote to memory of 1856 3332 EXCEL.EXE 71
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\3aa5c7eff28de190945d455033507e5f8e03536ca5caa632dcff83def469b6a0.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3332 -
C:\Windows\SysWow64\regsvr32.exeC:\Windows\SysWow64\regsvr32.exe -s ..\hdrh.dll2⤵
- Process spawned unexpected child process
PID:1856
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
75KB
MD56a107ab34afce193dbab2e31c1fb240f
SHA154611ca004d1d6718042e00dcc7091000ab51c55
SHA25637a7c728562612eb174db2141710f432e4ccf28cb7e7a5fbbfc1723ea8ac7229
SHA51222c305773ea5ed4e0a2ffade2cfa6886c9f0074df753d63f4e55dbead1d26e86744be4f7b8c4839ecc9b201009be5019d7b252241c7971db38efdc9e77cc6161