Analysis
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max time kernel
91s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
03/12/2022, 07:53
Static task
static1
Behavioral task
behavioral1
Sample
bcaf84c7c4a0d1eda5fd1c0268c5682439880bceca8decc0101f11341730bdbf.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
bcaf84c7c4a0d1eda5fd1c0268c5682439880bceca8decc0101f11341730bdbf.exe
Resource
win10v2004-20220901-en
General
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Target
bcaf84c7c4a0d1eda5fd1c0268c5682439880bceca8decc0101f11341730bdbf.exe
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Size
1.1MB
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MD5
6258939b770c7710805ece7e4c6ff6db
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SHA1
ca8a2ac342113094ff967f122d58e6492ce57070
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SHA256
bcaf84c7c4a0d1eda5fd1c0268c5682439880bceca8decc0101f11341730bdbf
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SHA512
76d5d41a7eebe373af9be26111e8da1d39dc70026d653930231846fa5a42f9366fa50be72746e611b8bd75736b8d7493a94332244617083493f2fcb94fbfa488
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SSDEEP
24576:wo0peow6/GmPN760aABzSbE0nc4v2o6IsQPTYDIH17GwoYw:ITbVSrz6nWH1GP/
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 800 search.cmd -
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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation bcaf84c7c4a0d1eda5fd1c0268c5682439880bceca8decc0101f11341730bdbf.exe -
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\search.cmd bcaf84c7c4a0d1eda5fd1c0268c5682439880bceca8decc0101f11341730bdbf.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\search.cmd bcaf84c7c4a0d1eda5fd1c0268c5682439880bceca8decc0101f11341730bdbf.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 800 search.cmd -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4016 wrote to memory of 800 4016 bcaf84c7c4a0d1eda5fd1c0268c5682439880bceca8decc0101f11341730bdbf.exe 84 PID 4016 wrote to memory of 800 4016 bcaf84c7c4a0d1eda5fd1c0268c5682439880bceca8decc0101f11341730bdbf.exe 84 PID 4016 wrote to memory of 800 4016 bcaf84c7c4a0d1eda5fd1c0268c5682439880bceca8decc0101f11341730bdbf.exe 84 PID 4016 wrote to memory of 4692 4016 bcaf84c7c4a0d1eda5fd1c0268c5682439880bceca8decc0101f11341730bdbf.exe 85 PID 4016 wrote to memory of 4692 4016 bcaf84c7c4a0d1eda5fd1c0268c5682439880bceca8decc0101f11341730bdbf.exe 85 PID 4016 wrote to memory of 4692 4016 bcaf84c7c4a0d1eda5fd1c0268c5682439880bceca8decc0101f11341730bdbf.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\bcaf84c7c4a0d1eda5fd1c0268c5682439880bceca8decc0101f11341730bdbf.exe"C:\Users\Admin\AppData\Local\Temp\bcaf84c7c4a0d1eda5fd1c0268c5682439880bceca8decc0101f11341730bdbf.exe"1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:4016 -
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\search.cmd"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\search.cmd"2⤵
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
PID:800
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del c:\users\admin\appdata\local\temp\BCAF84~1.EXE >> NUL2⤵PID:4692
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1.1MB
MD56258939b770c7710805ece7e4c6ff6db
SHA1ca8a2ac342113094ff967f122d58e6492ce57070
SHA256bcaf84c7c4a0d1eda5fd1c0268c5682439880bceca8decc0101f11341730bdbf
SHA51276d5d41a7eebe373af9be26111e8da1d39dc70026d653930231846fa5a42f9366fa50be72746e611b8bd75736b8d7493a94332244617083493f2fcb94fbfa488
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Filesize
1.1MB
MD56258939b770c7710805ece7e4c6ff6db
SHA1ca8a2ac342113094ff967f122d58e6492ce57070
SHA256bcaf84c7c4a0d1eda5fd1c0268c5682439880bceca8decc0101f11341730bdbf
SHA51276d5d41a7eebe373af9be26111e8da1d39dc70026d653930231846fa5a42f9366fa50be72746e611b8bd75736b8d7493a94332244617083493f2fcb94fbfa488