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Analysis
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max time kernel
112s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
22/04/2023, 20:33
Static task
static1
Behavioral task
behavioral1
Sample
download.gz
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
download.gz
Resource
win10v2004-20230220-en
Behavioral task
behavioral3
Sample
sample.js
Resource
win7-20230220-en
Behavioral task
behavioral4
Sample
sample.js
Resource
win10v2004-20230220-en
General
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Target
download.gz
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Size
20KB
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MD5
78689334c2aaad67f19ee8f0f09de7e0
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SHA1
9ed086731b9e1c216bd97d9f7ae9bd2bca86eded
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SHA256
9adf4ba601b65ffbacc8800a3c9826fe5127a51ba5c641651c9f7b147757bad2
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SHA512
30e968b692773cb3fef308bdbd265b55971ee038fa2cb8f162f1dcf59dcffcb86f6ca16dd8e3fe16210e3ef44bae6f10828f930c6a59c41bc14fd78624e8c2c3
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SSDEEP
384:eq0X3i6xKUuz7P13PTez7H6R6SLxLG0j0XzEfE6rSDPbkCqbaQ:h0nJ4U4LpK7AJpjCrL4baQ
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000_Classes\Local Settings OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000_Classes\Local Settings cmd.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 1176 NOTEPAD.EXE -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4396 OpenWith.exe -
Suspicious use of SetWindowsHookEx 29 IoCs
pid Process 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe 4396 OpenWith.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4396 wrote to memory of 1176 4396 OpenWith.exe 93 PID 4396 wrote to memory of 1176 4396 OpenWith.exe 93
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\download.gz1⤵
- Modifies registry class
PID:4908
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4396 -
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\download.gz2⤵
- Opens file in notepad (likely ransom note)
PID:1176
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