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Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
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submitted
23/11/2022, 21:04
General
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Target
file.exe
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Size
186KB
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MD5
212889c268e37fdf0052b3ec0e6dd6fe
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SHA1
78037cf5caa71fb7ab0f9fa44b22dc988cfab2c0
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SHA256
438aa9cc91d13dfa86644426b8f90be7f3302bbdbb70fcd71b3ede8c5ff9e464
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SHA512
549c9adc2d0346162854d34aeea5d55490e071e64705c8549f8e41a18af75502bbf913afb095240380e748fe67a906c82115948f924f0aa33e1b9f1899d878b4
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SSDEEP
3072:WkfRIWEJ/Fk2wLE4k3Vxj5RttJFtDQ5KMoupWGERWM:XfKwLE4iXbJFDhVGEg
Malware Config
Signatures
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Detects Smokeloader packer 1 IoCs
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Blocklisted process makes network request 1 IoCs
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Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
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Loads dropped DLL 1 IoCs
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
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Accesses Microsoft Outlook profiles 1 TTPs 4 IoCs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Checks processor information in registry 2 TTPs 25 IoCs
Processor information is often read in order to detect sandboxing environments.
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Modifies Internet Explorer settings 1 TTPs 2 IoCs
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Modifies registry class 8 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious behavior: MapViewOfSection 1 IoCs
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Suspicious use of AdjustPrivilegeToken 13 IoCs
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Suspicious use of FindShellTrayWindow 1 IoCs
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Suspicious use of SetWindowsHookEx 2 IoCs
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Suspicious use of WriteProcessMemory 9 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\F349.exeC:\Users\Admin\AppData\Local\Temp\F349.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Uayqupoehp.tmp",Rrptfe2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Accesses Microsoft Outlook accounts
- Accesses Microsoft Outlook profiles
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 141773⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 216 -s 5362⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 216 -ip 2161⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1.0MB
MD550dc29462e6fa8a11f318d807bf8e576
SHA1f451955773ef0c5a2381aeb0dccfbc9d3ee85c7e
SHA2563aad58d46fbe80b58a6d7eb22f1049c7c900a9764c36d3b10708dd8d536b6862
SHA5120aa13299262046781208158e5b046e1df155e198927d2bb9fad5358e8255fc50dfc906c98f42c9d057c8078a1af91e088cab5e4920ea4b7478ccce19d7178a70
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Filesize
1.0MB
MD550dc29462e6fa8a11f318d807bf8e576
SHA1f451955773ef0c5a2381aeb0dccfbc9d3ee85c7e
SHA2563aad58d46fbe80b58a6d7eb22f1049c7c900a9764c36d3b10708dd8d536b6862
SHA5120aa13299262046781208158e5b046e1df155e198927d2bb9fad5358e8255fc50dfc906c98f42c9d057c8078a1af91e088cab5e4920ea4b7478ccce19d7178a70
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Filesize
774KB
MD5d5e88f35e214f2dff51a7d494316bac2
SHA16306dfa71c4e32dede210631cf90732693c0afcf
SHA256f1828a7b26be78bb27df25b98762eb7dd7e49ee8582d5eee42ded05b0eebc1e4
SHA512ff167f0379173f976e3f91f41f6c88e67b12dfb0386b66d19f78d3aa3f11534cf2ce1c1d753ada0133cf291adca7ad8367087b791a5c05eaf371dd877ebcce1d
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Filesize
774KB
MD5d5e88f35e214f2dff51a7d494316bac2
SHA16306dfa71c4e32dede210631cf90732693c0afcf
SHA256f1828a7b26be78bb27df25b98762eb7dd7e49ee8582d5eee42ded05b0eebc1e4
SHA512ff167f0379173f976e3f91f41f6c88e67b12dfb0386b66d19f78d3aa3f11534cf2ce1c1d753ada0133cf291adca7ad8367087b791a5c05eaf371dd877ebcce1d
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Filesize
1.2MB
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Filesize
1.2MB
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Filesize
11.4MB
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Filesize
1.2MB
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Filesize
1.2MB
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Filesize
1.2MB
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Filesize
1.2MB
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Filesize
11.4MB
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Filesize
11.4MB
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Filesize
1.1MB
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Filesize
904KB
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Filesize
3.1MB
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Filesize
2.6MB
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Filesize
1.2MB
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Filesize
1.2MB
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Filesize
2.6MB
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Filesize
2.3MB
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Filesize
1024KB
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Filesize
36KB
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Filesize
2.3MB