Analysis
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max time kernel
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max time network
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platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
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submitted
27-12-2022 10:51
General
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Target
61698ba6c2fdd71306d6a070310320ae384056fcb0f9274f6f83433c66404dae.exe
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Size
56KB
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MD5
78e7a770f7af0b3fa64fc324c391e288
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SHA1
0506b7d989e2381fdb2122ef9d2ca6cd7ce7f132
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SHA256
61698ba6c2fdd71306d6a070310320ae384056fcb0f9274f6f83433c66404dae
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SHA512
f71ac5f2f44906b71349ad988d75ac961a16ecb8dc05963c7f2db9bb7284570f99d20eb6b59622c0ad4202dc4e9a19df8b7e20773613534d6f706f8189291c51
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SSDEEP
1536:iNeRBl5PT/rx1mzwRMSTdLpJFKa4s3Sb:iQRrmzwR5J74s3S
Malware Config
Extracted
C:\Users\Admin\Desktop\info.hta
https://tox.chat/
Signatures
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Phobos
Phobos ransomware appeared at the beginning of 2019.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit 1 TTPs 4 IoCs
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Deletes backup catalog 3 TTPs 2 IoCs
Uses wbadmin.exe to inhibit system recovery.
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Modifies Windows Firewall 1 TTPs 2 IoCs
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Modifies extensions of user files 2 IoCs
Ransomware generally changes the extension on encrypted files.
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Drops startup file 3 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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Adds Run key to start application 2 TTPs 2 IoCs
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Drops desktop.ini file(s) 64 IoCs
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Drops file in Program Files directory 64 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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Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Modifies Internet Explorer settings 1 TTPs 3 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of WriteProcessMemory 60 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\61698ba6c2fdd71306d6a070310320ae384056fcb0f9274f6f83433c66404dae.exe"C:\Users\Admin\AppData\Local\Temp\61698ba6c2fdd71306d6a070310320ae384056fcb0f9274f6f83433c66404dae.exe"1⤵
- Modifies extensions of user files
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\61698ba6c2fdd71306d6a070310320ae384056fcb0f9274f6f83433c66404dae.exe"C:\Users\Admin\AppData\Local\Temp\61698ba6c2fdd71306d6a070310320ae384056fcb0f9274f6f83433c66404dae.exe"2⤵
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off3⤵
- Modifies Windows Firewall
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C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable3⤵
- Modifies Windows Firewall
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta"2⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta"2⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta"2⤵
- Modifies Internet Explorer settings
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
5KB
MD5857cdfd613ee654875e97875fd58a880
SHA1574cfce5839c2255038b3003e376c2cd16dc12ec
SHA256b68aa76dbf43769307a012491951e1d5e75a842b0da0436ea419979f8b43afeb
SHA5129d3f89565c881170ecf67eae53c0abdde9ab3e0d8db846c794964a1a9fffc4f2f4f9efdfaa76fc2ed45b98a13c02bdcabfeedb98781507720a60906e1e1282ae
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Filesize
5KB
MD5857cdfd613ee654875e97875fd58a880
SHA1574cfce5839c2255038b3003e376c2cd16dc12ec
SHA256b68aa76dbf43769307a012491951e1d5e75a842b0da0436ea419979f8b43afeb
SHA5129d3f89565c881170ecf67eae53c0abdde9ab3e0d8db846c794964a1a9fffc4f2f4f9efdfaa76fc2ed45b98a13c02bdcabfeedb98781507720a60906e1e1282ae
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Filesize
5KB
MD5857cdfd613ee654875e97875fd58a880
SHA1574cfce5839c2255038b3003e376c2cd16dc12ec
SHA256b68aa76dbf43769307a012491951e1d5e75a842b0da0436ea419979f8b43afeb
SHA5129d3f89565c881170ecf67eae53c0abdde9ab3e0d8db846c794964a1a9fffc4f2f4f9efdfaa76fc2ed45b98a13c02bdcabfeedb98781507720a60906e1e1282ae
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Filesize
8KB
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Filesize
8KB
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