Analysis
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max time kernel
162s -
max time network
215s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
30-11-2022 18:15
Static task
static1
Behavioral task
behavioral1
Sample
273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exe
Resource
win7-20221111-en
General
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Target
273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exe
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Size
163KB
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MD5
efb7a3e2cb8f232021f1c5e081073998
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SHA1
0f7143d8798ea1ef4a3611410442732a9a23b13a
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SHA256
273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192
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SHA512
b6b46eb1addb6598798e220b3727532dff13eb3287da23b6ad42eaca0f4f46c35703cfc4c1e19eb1d47c04fd06003a7c6b01ce1fbf0118125ef27d1c1b90d69e
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SSDEEP
3072:4WMG0BC83uZtGi5jKJZxgedEZoj53JwU90WZXH6woQnk5+iIg:4XC83nZSedEZoj53lp6Inz
Malware Config
Signatures
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Drops file in System32 directory 1 IoCs
Processes:
xianimpl.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat xianimpl.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:
xianimpl.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings xianimpl.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f003f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 xianimpl.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C740E326-59B0-4AF2-AF74-75C8A13A6988}\WpadDecision = "0" xianimpl.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C740E326-59B0-4AF2-AF74-75C8A13A6988}\2e-2a-88-e3-0c-c4 xianimpl.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-2a-88-e3-0c-c4\WpadDecisionReason = "1" xianimpl.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-2a-88-e3-0c-c4\WpadDecision = "0" xianimpl.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" xianimpl.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C740E326-59B0-4AF2-AF74-75C8A13A6988} xianimpl.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-2a-88-e3-0c-c4 xianimpl.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-2a-88-e3-0c-c4\WpadDecisionTime = 402f7ae68006d901 xianimpl.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" xianimpl.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections xianimpl.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix xianimpl.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad xianimpl.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C740E326-59B0-4AF2-AF74-75C8A13A6988}\WpadNetworkName = "Network 2" xianimpl.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings xianimpl.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" xianimpl.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 xianimpl.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C740E326-59B0-4AF2-AF74-75C8A13A6988}\WpadDecisionReason = "1" xianimpl.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C740E326-59B0-4AF2-AF74-75C8A13A6988}\WpadDecisionTime = 402f7ae68006d901 xianimpl.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 xianimpl.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
xianimpl.exepid process 1324 xianimpl.exe 1324 xianimpl.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exepid process 680 273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exe -
Suspicious use of UnmapMainImage 4 IoCs
Processes:
273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exe273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exexianimpl.exexianimpl.exepid process 1656 273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exe 680 273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exe 300 xianimpl.exe 1324 xianimpl.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exexianimpl.exedescription pid process target process PID 1656 wrote to memory of 680 1656 273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exe 273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exe PID 1656 wrote to memory of 680 1656 273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exe 273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exe PID 1656 wrote to memory of 680 1656 273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exe 273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exe PID 1656 wrote to memory of 680 1656 273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exe 273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exe PID 300 wrote to memory of 1324 300 xianimpl.exe xianimpl.exe PID 300 wrote to memory of 1324 300 xianimpl.exe xianimpl.exe PID 300 wrote to memory of 1324 300 xianimpl.exe xianimpl.exe PID 300 wrote to memory of 1324 300 xianimpl.exe xianimpl.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exe"C:\Users\Admin\AppData\Local\Temp\273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exe"1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192.exe--7cf459862⤵
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
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C:\Windows\SysWOW64\xianimpl.exe"C:\Windows\SysWOW64\xianimpl.exe"1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\xianimpl.exe--f42738102⤵
- 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/680-56-0x0000000000000000-mapping.dmp
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memory/680-60-0x0000000000400000-0x0000000000429000-memory.dmpFilesize
164KB
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memory/680-64-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/1324-62-0x0000000000000000-mapping.dmp
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memory/1324-65-0x0000000000400000-0x0000000000429000-memory.dmpFilesize
164KB
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memory/1324-66-0x0000000000400000-0x0000000000429000-memory.dmpFilesize
164KB
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memory/1656-54-0x00000000767D1000-0x00000000767D3000-memory.dmpFilesize
8KB
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memory/1656-55-0x0000000000220000-0x0000000000231000-memory.dmpFilesize
68KB
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memory/1656-57-0x0000000000220000-0x0000000000231000-memory.dmpFilesize
68KB
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memory/1656-59-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB