Analysis
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max time kernel
74s -
max time network
42s -
platform
windows7_x64 -
resource
win7-en-20210920 -
submitted
21-09-2021 13:20
General
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Target
20742987e6f743814b25e214f8b2cd43111e2f60a8856a6cca87cafd85422f41.bin.sample.exe
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Size
78KB
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MD5
7b125a148ce0e0c126b95395dbf02b0e
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SHA1
778f954480ca76029109fd6bf34904bfb1109e84
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SHA256
20742987e6f743814b25e214f8b2cd43111e2f60a8856a6cca87cafd85422f41
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SHA512
daaeb7e228a3d5c7717c58287539902e79215d9795dcb1459213f7d515392f53f16ac2f0d455e635e89addd321f4f68ccdad9f5af60f8f4d1759b7ddf5409cf9
Score
10/10
Malware Config
Extracted
Path
C:\chkvc3MvG.README.txt
Family
blackmatter
Ransom Note
~+
* +
' BLACK |
() .-.,='``'=. - o -
'=/_ \ |
* | '=._ |
\ `=./`, '
. '=.__.=' `=' *
+ Matter +
O * ' .
>>> What happens?
Your network is encrypted, and currently not operational.
We need only money, after payment we will give you a decryptor for the entire network and you will restore all the data.
>>> What data stolen?
From your network was stolen 50 GB of data.
If you do not contact us we will publish all your data in our blog and will send it to the biggest mass media.
Blog post link: %BLOG_URL%
>>> What guarantees?
We are not a politically motivated group and we do not need anything other than your money.
If you pay, we will provide you the programs for decryption and we will delete your data.
If we do not give you decrypters or we do not delete your data, no one will pay us in the future, this does not comply with our goals.
We always keep our promises.
>> How to contact with us?
1. Download and install TOR Browser (https://www.torproject.org/).
2. Open http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/LEOYRMQLSRHFGFGYWF2T5
>> Warning! Recovery recommendations.
We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs
http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/LEOYRMQLSRHFGFGYWF2T5
Signatures
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BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
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Modifies extensions of user files 8 IoCs
Ransomware generally changes the extension on encrypted files.
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Sets desktop wallpaper using registry 2 TTPs 2 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
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Modifies Control Panel 3 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of AdjustPrivilegeToken 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\20742987e6f743814b25e214f8b2cd43111e2f60a8856a6cca87cafd85422f41.bin.sample.exe"C:\Users\Admin\AppData\Local\Temp\20742987e6f743814b25e214f8b2cd43111e2f60a8856a6cca87cafd85422f41.bin.sample.exe"1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
8KB
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Filesize
68KB
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Filesize
4KB
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Filesize
4KB