General
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Target
OTSLG.ps1
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Size
915KB
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Sample
211203-rwz69sghbk
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MD5
001bfe6f72fe64660ba498107c658bdc
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SHA1
0946baf23e867f2564302b60f777db72a1244a30
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SHA256
c22a6401a415fe642f3d96f38a887dd8ad23dd83a9255ee89d9adf4650ab98da
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SHA512
32836eff8285a5a301be0b4410d34a73d99d4c04b38b0b67b937c1bc5ae6ab2d033a97089b6588c245371dfd8e95c420c8bbd3862a632a828122861e0ec839d3
Static task
static1
Behavioral task
behavioral1
Sample
OTSLG.ps1
Resource
win7-en-20211104
Behavioral task
behavioral2
Sample
OTSLG.ps1
Resource
win10-en-20211104
Malware Config
Extracted
C:\eeWDzMyD5.README.txt
blackmatter
http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/O1E1HJ9H8JNKNNHC8
Targets
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Target
OTSLG.ps1
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Size
915KB
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MD5
001bfe6f72fe64660ba498107c658bdc
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SHA1
0946baf23e867f2564302b60f777db72a1244a30
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SHA256
c22a6401a415fe642f3d96f38a887dd8ad23dd83a9255ee89d9adf4650ab98da
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SHA512
32836eff8285a5a301be0b4410d34a73d99d4c04b38b0b67b937c1bc5ae6ab2d033a97089b6588c245371dfd8e95c420c8bbd3862a632a828122861e0ec839d3
Score10/10-
BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
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Modifies extensions of user files
Ransomware generally changes the extension on encrypted files.
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Sets desktop wallpaper using registry
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Suspicious use of NtSetInformationThreadHideFromDebugger
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