Analysis
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max time kernel
149s -
max time network
189s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
30-11-2022 17:10
Behavioral task
behavioral1
Sample
500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exe
Resource
win7-20221111-en
General
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Target
500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exe
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Size
144KB
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MD5
5c5239f80383a304a062139b3f95a831
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SHA1
01c39b7f3ffa44ffc442e2dc54b53f023438f839
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SHA256
500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660
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SHA512
4e46d9e8cd37e3d2f8c2fa6cbcdb22fd3380aee92566f4a50ece48260409ba278826e0d144c87c42668edd7dcb1b3841d5c6eda641a4546d76cfb5439df7cdba
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SSDEEP
1536:occDTGzg/RnqyACg2uHtdDaxlrxdp9ABRhi6/rDRoKCt5t1Y+ugCiB:eDKzgpACg/7axlrxdQBfi6/rot5t4kB
Malware Config
Signatures
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Drops file in System32 directory 1 IoCs
Processes:
cloudxian.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat cloudxian.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:
cloudxian.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-b0-ae-a9-cb-d4 cloudxian.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{296AE674-129F-49C2-ABA9-B4DF2F53302C}\ae-b0-ae-a9-cb-d4 cloudxian.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-b0-ae-a9-cb-d4\WpadDecision = "0" cloudxian.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" cloudxian.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad cloudxian.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0050000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 cloudxian.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{296AE674-129F-49C2-ABA9-B4DF2F53302C}\WpadNetworkName = "Network 2" cloudxian.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-b0-ae-a9-cb-d4\WpadDecisionReason = "1" cloudxian.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 cloudxian.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix cloudxian.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{296AE674-129F-49C2-ABA9-B4DF2F53302C} cloudxian.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{296AE674-129F-49C2-ABA9-B4DF2F53302C}\WpadDecision = "0" cloudxian.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 cloudxian.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{296AE674-129F-49C2-ABA9-B4DF2F53302C}\WpadDecisionReason = "1" cloudxian.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-b0-ae-a9-cb-d4\WpadDecisionTime = 90ad31a37006d901 cloudxian.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections cloudxian.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" cloudxian.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" cloudxian.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings cloudxian.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings cloudxian.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{296AE674-129F-49C2-ABA9-B4DF2F53302C}\WpadDecisionTime = 90ad31a37006d901 cloudxian.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
cloudxian.exepid process 576 cloudxian.exe 576 cloudxian.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exepid process 2024 500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exe -
Suspicious use of UnmapMainImage 4 IoCs
Processes:
500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exe500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.execloudxian.execloudxian.exepid process 1152 500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exe 2024 500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exe 636 cloudxian.exe 576 cloudxian.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.execloudxian.exedescription pid process target process PID 1152 wrote to memory of 2024 1152 500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exe 500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exe PID 1152 wrote to memory of 2024 1152 500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exe 500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exe PID 1152 wrote to memory of 2024 1152 500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exe 500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exe PID 1152 wrote to memory of 2024 1152 500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exe 500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exe PID 636 wrote to memory of 576 636 cloudxian.exe cloudxian.exe PID 636 wrote to memory of 576 636 cloudxian.exe cloudxian.exe PID 636 wrote to memory of 576 636 cloudxian.exe cloudxian.exe PID 636 wrote to memory of 576 636 cloudxian.exe cloudxian.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exe"C:\Users\Admin\AppData\Local\Temp\500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exe"1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\500012d50571ffd0bf7d79d93fba3148f1c00771511ca7c41a45cfd20003c660.exe--4335f2d82⤵
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
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C:\Windows\SysWOW64\cloudxian.exe"C:\Windows\SysWOW64\cloudxian.exe"1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cloudxian.exe--299faf892⤵
- 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/576-60-0x0000000000000000-mapping.dmp
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memory/576-62-0x0000000000400000-0x0000000000425000-memory.dmpFilesize
148KB
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memory/1152-54-0x00000000001B0000-0x00000000001C1000-memory.dmpFilesize
68KB
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memory/1152-56-0x00000000001B0000-0x00000000001C1000-memory.dmpFilesize
68KB
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memory/1152-57-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/2024-55-0x0000000000000000-mapping.dmp
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memory/2024-58-0x0000000000400000-0x0000000000425000-memory.dmpFilesize
148KB
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memory/2024-59-0x0000000075881000-0x0000000075883000-memory.dmpFilesize
8KB
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memory/2024-61-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB