Analysis
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max time kernel
151s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
03-07-2022 05:23
Static task
static1
Behavioral task
behavioral1
Sample
cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe
Resource
win10v2004-20220414-en
General
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Target
cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe
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Size
6.0MB
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MD5
3cc4678d3265f53a87f44f77d2ae529e
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SHA1
4482f39c73fc40e05d0356a952b9e0d4122ab996
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SHA256
cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80
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SHA512
20966d8ed2235681ac661f0e7e088bd7183962421a7a02dec8542f85aa5302269f24827868d8ef93e9e22e4be0a1b0782249e3e591fcd06a563c13b39a686170
Malware Config
Extracted
metasploit
encoder/call4_dword_xor
Signatures
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MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
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Drops file in Drivers directory 2 IoCs
Processes:
lsass.exedescription ioc process File opened for modification C:\Windows\SysWOW64\drivers\sysdrv32.sys lsass.exe File created C:\Windows\SysWOW64\drivers\sysdrv32.sys lsass.exe -
Executes dropped EXE 1 IoCs
Processes:
lsass.exepid process 4460 lsass.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exedescription ioc process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ilasss = "C:\\Windows\\system\\lsass.exe" cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe -
Drops file in Windows directory 2 IoCs
Processes:
cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exedescription ioc process File created C:\Windows\system\lsass.exe cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe File opened for modification C:\Windows\system\lsass.exe cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: LoadsDriver 1 IoCs
Processes:
pid process 652 -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exedescription pid process Token: SeIncBasePriorityPrivilege 3780 cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exedescription pid process target process PID 3780 wrote to memory of 4460 3780 cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe lsass.exe PID 3780 wrote to memory of 4460 3780 cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe lsass.exe PID 3780 wrote to memory of 4460 3780 cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe lsass.exe PID 3780 wrote to memory of 3404 3780 cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe cmd.exe PID 3780 wrote to memory of 3404 3780 cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe cmd.exe PID 3780 wrote to memory of 3404 3780 cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe"C:\Users\Admin\AppData\Local\Temp\cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system\lsass.exe"C:\Windows\system\lsass.exe"2⤵
- Drops file in Drivers directory
- Executes dropped EXE
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\CD0415~1.EXE > nul2⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Windows\System\lsass.exeFilesize
6.0MB
MD53cc4678d3265f53a87f44f77d2ae529e
SHA14482f39c73fc40e05d0356a952b9e0d4122ab996
SHA256cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80
SHA51220966d8ed2235681ac661f0e7e088bd7183962421a7a02dec8542f85aa5302269f24827868d8ef93e9e22e4be0a1b0782249e3e591fcd06a563c13b39a686170
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C:\Windows\system\lsass.exeFilesize
6.0MB
MD53cc4678d3265f53a87f44f77d2ae529e
SHA14482f39c73fc40e05d0356a952b9e0d4122ab996
SHA256cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80
SHA51220966d8ed2235681ac661f0e7e088bd7183962421a7a02dec8542f85aa5302269f24827868d8ef93e9e22e4be0a1b0782249e3e591fcd06a563c13b39a686170
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memory/3404-135-0x0000000000000000-mapping.dmp
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memory/3780-133-0x00000000299F0000-0x0000000029FF5000-memory.dmpFilesize
6.0MB
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memory/4460-130-0x0000000000000000-mapping.dmp
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memory/4460-134-0x00000000299F0000-0x0000000029FF5000-memory.dmpFilesize
6.0MB
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memory/4460-136-0x00000000299F0000-0x0000000029FF5000-memory.dmpFilesize
6.0MB