Analysis
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max time kernel
147s -
max time network
181s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
30-11-2022 15:43
Behavioral task
behavioral1
Sample
ab9de10e6324b942aa8b9994db8909bdbce32283d06be8eeed690ce32f3422b8.exe
Resource
win7-20221111-en
General
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Target
ab9de10e6324b942aa8b9994db8909bdbce32283d06be8eeed690ce32f3422b8.exe
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Size
144KB
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MD5
5d6019733fd57be83041a5039849fc44
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SHA1
04e23b1f4ee6379e6706f42bc65d7ce5cbd6f604
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SHA256
ab9de10e6324b942aa8b9994db8909bdbce32283d06be8eeed690ce32f3422b8
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SHA512
28e9189b848f08f189867d29971f04c464eb0ecd19b0220628e0f95ff21e56f6d4a6e24dfa17a9c8b33c6fe181d2da6f9afbcb7aab3b148a5467e457dafafb42
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SSDEEP
1536:+Bftrr3BVkFVaan1qOEXhXVCcbnBoLdLkuDNd3QkLOSPfNW9UZ5l9b/ugCiGUX:+ltrbkFEEqOWYnLdLfD/gCfNnZ5lskV
Malware Config
Signatures
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Drops file in System32 directory 4 IoCs
Processes:
portaljobs.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE portaljobs.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies portaljobs.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 portaljobs.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 portaljobs.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 3 IoCs
Processes:
portaljobs.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix portaljobs.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" portaljobs.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" portaljobs.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
portaljobs.exepid process 2276 portaljobs.exe 2276 portaljobs.exe 2276 portaljobs.exe 2276 portaljobs.exe 2276 portaljobs.exe 2276 portaljobs.exe 2276 portaljobs.exe 2276 portaljobs.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
ab9de10e6324b942aa8b9994db8909bdbce32283d06be8eeed690ce32f3422b8.exepid process 1948 ab9de10e6324b942aa8b9994db8909bdbce32283d06be8eeed690ce32f3422b8.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
ab9de10e6324b942aa8b9994db8909bdbce32283d06be8eeed690ce32f3422b8.exeportaljobs.exedescription pid process target process PID 3484 wrote to memory of 1948 3484 ab9de10e6324b942aa8b9994db8909bdbce32283d06be8eeed690ce32f3422b8.exe ab9de10e6324b942aa8b9994db8909bdbce32283d06be8eeed690ce32f3422b8.exe PID 3484 wrote to memory of 1948 3484 ab9de10e6324b942aa8b9994db8909bdbce32283d06be8eeed690ce32f3422b8.exe ab9de10e6324b942aa8b9994db8909bdbce32283d06be8eeed690ce32f3422b8.exe PID 3484 wrote to memory of 1948 3484 ab9de10e6324b942aa8b9994db8909bdbce32283d06be8eeed690ce32f3422b8.exe ab9de10e6324b942aa8b9994db8909bdbce32283d06be8eeed690ce32f3422b8.exe PID 2064 wrote to memory of 2276 2064 portaljobs.exe portaljobs.exe PID 2064 wrote to memory of 2276 2064 portaljobs.exe portaljobs.exe PID 2064 wrote to memory of 2276 2064 portaljobs.exe portaljobs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ab9de10e6324b942aa8b9994db8909bdbce32283d06be8eeed690ce32f3422b8.exe"C:\Users\Admin\AppData\Local\Temp\ab9de10e6324b942aa8b9994db8909bdbce32283d06be8eeed690ce32f3422b8.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\ab9de10e6324b942aa8b9994db8909bdbce32283d06be8eeed690ce32f3422b8.exe--66d9a8172⤵
- Suspicious behavior: RenamesItself
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C:\Windows\SysWOW64\portaljobs.exe"C:\Windows\SysWOW64\portaljobs.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\portaljobs.exe--813cde742⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1948-135-0x0000000000000000-mapping.dmp
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memory/1948-137-0x0000000000400000-0x0000000000425000-memory.dmpFilesize
148KB
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memory/1948-138-0x0000000000400000-0x0000000000425000-memory.dmpFilesize
148KB
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memory/1948-140-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/2276-139-0x0000000000000000-mapping.dmp
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memory/2276-141-0x0000000000400000-0x0000000000425000-memory.dmpFilesize
148KB
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memory/2276-142-0x0000000000400000-0x0000000000425000-memory.dmpFilesize
148KB
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memory/3484-132-0x0000000000590000-0x00000000005A1000-memory.dmpFilesize
68KB
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memory/3484-133-0x0000000000590000-0x00000000005A1000-memory.dmpFilesize
68KB
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memory/3484-134-0x0000000000400000-0x0000000000425000-memory.dmpFilesize
148KB
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memory/3484-136-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB