Analysis
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max time kernel
143s -
max time network
170s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03/12/2022, 22:47
Static task
static1
Behavioral task
behavioral1
Sample
a014a2088f710b9d66f55399c3ef209204249c7cde63541bdea785e93ebc1269.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
a014a2088f710b9d66f55399c3ef209204249c7cde63541bdea785e93ebc1269.exe
Resource
win10v2004-20220812-en
General
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Target
a014a2088f710b9d66f55399c3ef209204249c7cde63541bdea785e93ebc1269.exe
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Size
420KB
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MD5
7dc1e09cdb852ae391de4a1651195a93
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SHA1
4edcfe0a01b599059feb61c9f58e4ee705f2fec6
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SHA256
a014a2088f710b9d66f55399c3ef209204249c7cde63541bdea785e93ebc1269
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SHA512
209845848faffe2c33d645857471885fb0b4694905e931d75457224c4dd93dc053b3550e472a1cd338f6c93d47180bf092c225b0335c593990c423d519ae3926
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SSDEEP
6144:A5PThKXOCIr/THcclUvDlHBB9qveGUnANsMhf64LhflMBq6Z0iclW:eThKbIr/SZHv4veGhfVLhP6Z0iS
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation a014a2088f710b9d66f55399c3ef209204249c7cde63541bdea785e93ebc1269.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 a014a2088f710b9d66f55399c3ef209204249c7cde63541bdea785e93ebc1269.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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description ioc Process Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 explorer.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Toolbar explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1" explorer.exe -
Modifies registry class 7 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ explorer.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ explorer.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings explorer.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell explorer.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4684 explorer.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4684 explorer.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4684 explorer.exe 4684 explorer.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1664 wrote to memory of 4328 1664 a014a2088f710b9d66f55399c3ef209204249c7cde63541bdea785e93ebc1269.exe 80 PID 1664 wrote to memory of 4328 1664 a014a2088f710b9d66f55399c3ef209204249c7cde63541bdea785e93ebc1269.exe 80 PID 1664 wrote to memory of 4328 1664 a014a2088f710b9d66f55399c3ef209204249c7cde63541bdea785e93ebc1269.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\a014a2088f710b9d66f55399c3ef209204249c7cde63541bdea785e93ebc1269.exe"C:\Users\Admin\AppData\Local\Temp\a014a2088f710b9d66f55399c3ef209204249c7cde63541bdea785e93ebc1269.exe"1⤵
- Checks computer location settings
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
PID:1664 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\System32\explorer.exe" ::{20D04FE0-3AEA-1069-A2D8-08002B30309D}2⤵PID:4328
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:4684