Analysis
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max time kernel
124s -
max time network
174s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
30-11-2022 15:49
Behavioral task
behavioral1
Sample
a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exe
Resource
win7-20221111-en
General
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Target
a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exe
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Size
101KB
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MD5
7805e6298903cbd07833d6d7b4147458
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SHA1
2abad5544ec45b78eba1d2a38a26167c25197bd5
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SHA256
a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499
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SHA512
5214889cda839857f226c7225021d9a0eb7e2fb239a534d81e6075998ae5bfb6102ead0388cd7fca96ba017de17068a46218a59ff31634e825d195be23236727
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SSDEEP
1536:39XM2K4Y3kK5MNq5cktsVPkRcT5nEYJyuXtg/I/rSL5+Fj7z3nYxt:398xkK5h5xwPDTZrJ/rq5+Fj7z3nYxt
Malware Config
Signatures
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Drops file in System32 directory 1 IoCs
Processes:
targetsredist.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat targetsredist.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies data under HKEY_USERS 21 IoCs
Processes:
targetsredist.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" targetsredist.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" targetsredist.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DC3E91C-324C-4190-B214-6F98D1649C4B}\WpadDecision = "0" targetsredist.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-5a-e2-c5-ab-95 targetsredist.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DC3E91C-324C-4190-B214-6F98D1649C4B}\86-5a-e2-c5-ab-95 targetsredist.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-5a-e2-c5-ab-95\WpadDecisionReason = "1" targetsredist.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings targetsredist.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections targetsredist.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 targetsredist.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" targetsredist.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad targetsredist.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DC3E91C-324C-4190-B214-6F98D1649C4B}\WpadDecisionTime = f0733a5c6006d901 targetsredist.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DC3E91C-324C-4190-B214-6F98D1649C4B}\WpadNetworkName = "Network 2" targetsredist.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-5a-e2-c5-ab-95\WpadDecisionTime = f0733a5c6006d901 targetsredist.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix targetsredist.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 targetsredist.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DC3E91C-324C-4190-B214-6F98D1649C4B}\WpadDecisionReason = "1" targetsredist.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-5a-e2-c5-ab-95\WpadDecision = "0" targetsredist.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings targetsredist.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0044000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 targetsredist.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DC3E91C-324C-4190-B214-6F98D1649C4B} targetsredist.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
targetsredist.exepid process 776 targetsredist.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exepid process 1736 a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exe -
Suspicious use of UnmapMainImage 4 IoCs
Processes:
a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exea882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exetargetsredist.exetargetsredist.exepid process 2036 a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exe 1736 a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exe 524 targetsredist.exe 776 targetsredist.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exetargetsredist.exedescription pid process target process PID 2036 wrote to memory of 1736 2036 a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exe a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exe PID 2036 wrote to memory of 1736 2036 a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exe a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exe PID 2036 wrote to memory of 1736 2036 a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exe a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exe PID 2036 wrote to memory of 1736 2036 a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exe a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exe PID 524 wrote to memory of 776 524 targetsredist.exe targetsredist.exe PID 524 wrote to memory of 776 524 targetsredist.exe targetsredist.exe PID 524 wrote to memory of 776 524 targetsredist.exe targetsredist.exe PID 524 wrote to memory of 776 524 targetsredist.exe targetsredist.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exe"C:\Users\Admin\AppData\Local\Temp\a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exe"1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\a882cd36825d6e74446f7e4654b5658c0e350c6a473db3542c537959cc661499.exe--618e8c1b2⤵
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
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C:\Windows\SysWOW64\targetsredist.exe"C:\Windows\SysWOW64\targetsredist.exe"1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\targetsredist.exe--c2c093f12⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/776-62-0x0000000000000000-mapping.dmp
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memory/776-65-0x0000000000400000-0x000000000041C000-memory.dmpFilesize
112KB
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memory/1736-56-0x0000000000000000-mapping.dmp
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memory/1736-60-0x0000000000400000-0x000000000041C000-memory.dmpFilesize
112KB
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memory/1736-63-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/2036-54-0x00000000760B1000-0x00000000760B3000-memory.dmpFilesize
8KB
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memory/2036-55-0x0000000000220000-0x0000000000231000-memory.dmpFilesize
68KB
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memory/2036-57-0x0000000000220000-0x0000000000231000-memory.dmpFilesize
68KB
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memory/2036-59-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB