Analysis
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max time kernel
336s -
max time network
358s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
08/01/2022, 05:22
General
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Target
CacheTask.exe
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Size
10.0MB
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MD5
c004d38310f828f384f4360591b2c090
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SHA1
65c38148bbba7114556aab0d1aeb05d419fa590f
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SHA256
a2768bd2301f387a40cd9cbfea05af2f5a68791dce758e5ba9db29ff29e74f57
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SHA512
fdac8e831957d34095d034e3a9cf62f8e92c1bee781a87babb1eb30e046cb7646f717fe87311beeffccaba614a28d9b1099b6fcee2038faa17c087ade2d1f87b
Score
10/10
Malware Config
Extracted
Path
C:\Users\Public\Desktop\How to restore your files.txt
Ransom Note
All of your files have been encrypted. Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help.
What can I do to get my files back?
You can buy our special decryption software,this software will
allow you to recover all of your data and remove the ransomware
from your computer.The price for the software is 0.5 BTC.
Payment can be made in Bitcoin only.
How do I pay, where do I get Bitcoin?
Purchasing Bitcoin varies from country to country,you are best
advised to do a quick google search yourself to find how to buy
Bitcoin?
Many of our customers have reported these sites to be fast and
reliable :
Coinmama - https ://www.coinmama.com
Bitpanda - https ://www.bitpanda.com
Contacts - [email protected]
BTC Address: bc1qnwdt2068q2asdxa9etz4epu44pf4z98m7e28l2
Emails
URLs
https
Signatures
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Executes dropped EXE 1 IoCs
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Modifies extensions of user files 2 IoCs
Ransomware generally changes the extension on encrypted files.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Sets desktop wallpaper using registry 2 TTPs 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of SetWindowsHookEx 2 IoCs
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Suspicious use of WriteProcessMemory 2 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\CacheTask.exe"C:\Users\Admin\AppData\Local\Temp\CacheTask.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Public\Documents\cobra.exeC:\Users\Public\Documents\cobra.exe2⤵
- Executes dropped EXE
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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