Analysis
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max time kernel
154s -
max time network
204s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
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submitted
04-12-2022 10:00
General
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Target
af80390a5d4d6865fd652c1ba81e4c4c8f34cc135d028d70975eaa9453eb45cc.exe
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Size
326KB
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MD5
3736b5e8d91e93799aa194a63669ba4f
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SHA1
2630a0c95d8f4234b5d53469d8a075a6266c7756
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SHA256
af80390a5d4d6865fd652c1ba81e4c4c8f34cc135d028d70975eaa9453eb45cc
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SHA512
49bc5a501904be65e44a256efd51276dc31153b76ee83476a5b724c87c554c651f178a5ea5e70f7391a8edfff5f20085306982c7be64e21076bdb64696f2dc6c
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SSDEEP
6144:P33tj8BBIQq3JuCPBz9OzbO41XW+hHntnyVg/ucTM6ZkK5:P3dj2q3gUcb/cCntyVgGc115
Malware Config
Extracted
C:\$Recycle.Bin\S-1-5-21-3385717845-2518323428-350143044-1000\_ReCoVeRy_+ethcb.txt
teslacrypt
http://po4dbsjbneljhrlbvaueqrgveatv.bonmawp.at/3B2E44785F28FD73
http://u54bbnhf354fbkh254tbkhjbgy8258gnkwerg.tahaplap.com/3B2E44785F28FD73
http://w6bfg4hahn5bfnlsafgchkvg5fwsfvrt.hareuna.at/3B2E44785F28FD73
http://xlowfznrg4wf7dli.ONION/3B2E44785F28FD73
Signatures
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TeslaCrypt, AlphaCrypt
Ransomware based on CryptoLocker. Shut down by the developers in 2016.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Executes dropped EXE 1 IoCs
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Deletes itself 1 IoCs
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Adds Run key to start application 2 TTPs 2 IoCs
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Drops file in Program Files directory 43 IoCs
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Drops file in Windows directory 2 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 45 IoCs
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Suspicious use of WriteProcessMemory 12 IoCs
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System policy modification 1 TTPs 2 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\af80390a5d4d6865fd652c1ba81e4c4c8f34cc135d028d70975eaa9453eb45cc.exe"C:\Users\Admin\AppData\Local\Temp\af80390a5d4d6865fd652c1ba81e4c4c8f34cc135d028d70975eaa9453eb45cc.exe"1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\xufygoyqelrp.exeC:\Windows\xufygoyqelrp.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\System32\wbem\WMIC.exe"C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\AF8039~1.EXE2⤵
- Deletes itself
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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
Loading Replay Monitor...
Downloads
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Filesize
326KB
MD53736b5e8d91e93799aa194a63669ba4f
SHA12630a0c95d8f4234b5d53469d8a075a6266c7756
SHA256af80390a5d4d6865fd652c1ba81e4c4c8f34cc135d028d70975eaa9453eb45cc
SHA51249bc5a501904be65e44a256efd51276dc31153b76ee83476a5b724c87c554c651f178a5ea5e70f7391a8edfff5f20085306982c7be64e21076bdb64696f2dc6c
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Filesize
326KB
MD53736b5e8d91e93799aa194a63669ba4f
SHA12630a0c95d8f4234b5d53469d8a075a6266c7756
SHA256af80390a5d4d6865fd652c1ba81e4c4c8f34cc135d028d70975eaa9453eb45cc
SHA51249bc5a501904be65e44a256efd51276dc31153b76ee83476a5b724c87c554c651f178a5ea5e70f7391a8edfff5f20085306982c7be64e21076bdb64696f2dc6c
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Filesize
8KB
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Filesize
188KB
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Filesize
668KB
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Filesize
668KB
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Filesize
668KB
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Filesize
668KB
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Filesize
668KB