Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
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submitted
26-09-2022 09:51
General
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Target
executable.exe
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Size
59KB
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MD5
e522012832258c2a249ec2d47ae6466b
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SHA1
801b3409be244e0002c39a7ea1ae9dad983d57a8
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SHA256
928b382e4ace76bdd1dd260ae5c8b832d724e07ae72ff665406ac2e599aff3e3
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SHA512
33737b79a7f8989c7999dea94d2c5fb03f3c8fc91b94b1cbced391cf1db3c8ea1321f7b21391f711b4ef36bb6a46c92f0036f524b336fb791e903265af0704df
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SSDEEP
1536:NNeRBl5PT/rx1mzwRMSTdLpJcBSW1kXWFe8:NQRrmzwR5JISW1kX
Malware Config
Extracted
C:\info.hta
https://t.me/Files_decrypt
https://icq.com/windows/
https://icq.im/Ransomware_Decrypt/
https://getsession.org
https://tox.chat/download.html
Signatures
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Phobos
Phobos ransomware appeared at the beginning of 2019.
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Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
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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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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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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Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
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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 registry class 1 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 42 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\executable.exe"C:\Users\Admin\AppData\Local\Temp\executable.exe"1⤵
- Modifies extensions of user files
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\executable.exe"C:\Users\Admin\AppData\Local\Temp\executable.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\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\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\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}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\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\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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⤵
- Checks SCSI registry key(s)
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
6KB
MD5d63e592b8688d2095043d2cd09b4bc3f
SHA189727083ab84b2566e9b7df7d18438c7502c87c2
SHA2566e1c7c635c1b54bc1d3edb8ead773c9b3dfefe161949eed44b3a5c2968c8c9f0
SHA5125dd5f7ae36ac11695edb5be86af9d0e9ff84c80a351430f3eb66608f4548787646feeea27f2b3098853ea1c7a9159e5cb175ca2d52c85d526b228c9e09fff96c
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Filesize
6KB
MD5d63e592b8688d2095043d2cd09b4bc3f
SHA189727083ab84b2566e9b7df7d18438c7502c87c2
SHA2566e1c7c635c1b54bc1d3edb8ead773c9b3dfefe161949eed44b3a5c2968c8c9f0
SHA5125dd5f7ae36ac11695edb5be86af9d0e9ff84c80a351430f3eb66608f4548787646feeea27f2b3098853ea1c7a9159e5cb175ca2d52c85d526b228c9e09fff96c
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Filesize
6KB
MD5d63e592b8688d2095043d2cd09b4bc3f
SHA189727083ab84b2566e9b7df7d18438c7502c87c2
SHA2566e1c7c635c1b54bc1d3edb8ead773c9b3dfefe161949eed44b3a5c2968c8c9f0
SHA5125dd5f7ae36ac11695edb5be86af9d0e9ff84c80a351430f3eb66608f4548787646feeea27f2b3098853ea1c7a9159e5cb175ca2d52c85d526b228c9e09fff96c
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