Analysis
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max time kernel
128s -
max time network
167s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
30-11-2022 18:25
Static task
static1
Behavioral task
behavioral1
Sample
5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe
Resource
win7-20220812-en
General
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Target
5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe
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Size
112KB
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MD5
f22f7b06c0e9503578806e844b148138
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SHA1
2ea8f5b40154cb24a8d48cf68ac4ca4f35d46a6f
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SHA256
5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6
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SHA512
b0e9f6ab97ba768af834af017cb28ff614a23169726093e8c7df40faae217b3d27ce8dcf5cf9b791efa61d12e5f453bff402fe3d48e336ae6b3f2ad71fe528b7
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SSDEEP
3072:pvDCGjODCKxSLKox1Xen3M0S58RXd8fAKE:ptjO+KxSzTu3lVeE
Malware Config
Signatures
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Drops file in System32 directory 1 IoCs
Processes:
adjustrep.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat adjustrep.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:
adjustrep.exedescription ioc process Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0016000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 adjustrep.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{45564D45-DC34-4BF7-905B-D4BF666B9D77}\WpadDecisionTime = 4053a1297f06d901 adjustrep.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections adjustrep.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 adjustrep.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{45564D45-DC34-4BF7-905B-D4BF666B9D77}\5e-11-fd-6f-3c-8f adjustrep.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-11-fd-6f-3c-8f\WpadDecision = "0" adjustrep.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad adjustrep.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{45564D45-DC34-4BF7-905B-D4BF666B9D77}\WpadDecision = "0" adjustrep.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" adjustrep.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings adjustrep.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" adjustrep.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-11-fd-6f-3c-8f adjustrep.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-11-fd-6f-3c-8f\WpadDecisionTime = 4053a1297f06d901 adjustrep.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings adjustrep.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" adjustrep.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{45564D45-DC34-4BF7-905B-D4BF666B9D77} adjustrep.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{45564D45-DC34-4BF7-905B-D4BF666B9D77}\WpadDecisionReason = "1" adjustrep.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{45564D45-DC34-4BF7-905B-D4BF666B9D77}\WpadNetworkName = "Network 2" adjustrep.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-11-fd-6f-3c-8f\WpadDecisionReason = "1" adjustrep.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 adjustrep.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix adjustrep.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
adjustrep.exepid process 1500 adjustrep.exe 1500 adjustrep.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exepid process 1948 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe -
Suspicious use of UnmapMainImage 4 IoCs
Processes:
5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exeadjustrep.exeadjustrep.exepid process 1952 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe 1948 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe 1320 adjustrep.exe 1500 adjustrep.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exeadjustrep.exedescription pid process target process PID 1952 wrote to memory of 1948 1952 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe PID 1952 wrote to memory of 1948 1952 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe PID 1952 wrote to memory of 1948 1952 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe PID 1952 wrote to memory of 1948 1952 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe PID 1320 wrote to memory of 1500 1320 adjustrep.exe adjustrep.exe PID 1320 wrote to memory of 1500 1320 adjustrep.exe adjustrep.exe PID 1320 wrote to memory of 1500 1320 adjustrep.exe adjustrep.exe PID 1320 wrote to memory of 1500 1320 adjustrep.exe adjustrep.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe"C:\Users\Admin\AppData\Local\Temp\5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe"1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1952 -
C:\Users\Admin\AppData\Local\Temp\5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe--debacaf22⤵
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
PID:1948
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C:\Windows\SysWOW64\adjustrep.exe"C:\Windows\SysWOW64\adjustrep.exe"1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1320 -
C:\Windows\SysWOW64\adjustrep.exe--60fedca42⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
PID:1500
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/1320-59-0x0000000000220000-0x0000000000231000-memory.dmpFilesize
68KB
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memory/1500-60-0x0000000000000000-mapping.dmp
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memory/1500-62-0x0000000000400000-0x000000000041F000-memory.dmpFilesize
124KB
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memory/1948-54-0x0000000000000000-mapping.dmp
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memory/1948-57-0x0000000000400000-0x000000000041F000-memory.dmpFilesize
124KB
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memory/1948-58-0x00000000762F1000-0x00000000762F3000-memory.dmpFilesize
8KB
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memory/1948-61-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/1952-55-0x0000000000220000-0x0000000000231000-memory.dmpFilesize
68KB
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memory/1952-56-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB