Analysis
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max time kernel
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max time network
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platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
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submitted
30-12-2022 06:04
General
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Target
f4db61bb14a7af406c9cfc33075c6f74ab711bedf1e1fd6edc4f524bd304c1b6.exe
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Size
56KB
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MD5
25e0c92a4e1d058d5a04089efe63b290
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SHA1
0f34c29d2ce181dbe88bcb5d28ea8aa3c5bbd5e3
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SHA256
f4db61bb14a7af406c9cfc33075c6f74ab711bedf1e1fd6edc4f524bd304c1b6
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SHA512
b07fb95b6138224b789e73e398c74e91a7d311acc49621fa08b875e8dd1a2af4dec58b522ab68e49dfd6ba52085784118bf73c1067a5677551dec532ce56bd50
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SSDEEP
1536:qNeRBl5PT/rx1mzwRMSTdLpJR1LY8EcxN/i:qQRrmzwR5JbLY8Ec
Malware Config
Extracted
C:\users\public\desktop\info.hta
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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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\f4db61bb14a7af406c9cfc33075c6f74ab711bedf1e1fd6edc4f524bd304c1b6.exe"C:\Users\Admin\AppData\Local\Temp\f4db61bb14a7af406c9cfc33075c6f74ab711bedf1e1fd6edc4f524bd304c1b6.exe"1⤵
- 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\f4db61bb14a7af406c9cfc33075c6f74ab711bedf1e1fd6edc4f524bd304c1b6.exe"C:\Users\Admin\AppData\Local\Temp\f4db61bb14a7af406c9cfc33075c6f74ab711bedf1e1fd6edc4f524bd304c1b6.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"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
MD544a66c9de2467fe236a7366161b1246c
SHA177dda1ab0ce2a9a1a6c302879d765220e9da203e
SHA2568cc5b709c3107dd7b9fa2e03cc61f19ff3329c55d2aeec96d55288a679a4a9cc
SHA512b7ae683a9211c6c2fcc6d4c1359add7ecca3ef73928cc611bb11b14c00b97b5e75c50f6d103c7c07cc9fde6e95bdb7e5b5f39983c0e3301700b95b68e897c9c3
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Filesize
5KB
MD544a66c9de2467fe236a7366161b1246c
SHA177dda1ab0ce2a9a1a6c302879d765220e9da203e
SHA2568cc5b709c3107dd7b9fa2e03cc61f19ff3329c55d2aeec96d55288a679a4a9cc
SHA512b7ae683a9211c6c2fcc6d4c1359add7ecca3ef73928cc611bb11b14c00b97b5e75c50f6d103c7c07cc9fde6e95bdb7e5b5f39983c0e3301700b95b68e897c9c3
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Filesize
5KB
MD544a66c9de2467fe236a7366161b1246c
SHA177dda1ab0ce2a9a1a6c302879d765220e9da203e
SHA2568cc5b709c3107dd7b9fa2e03cc61f19ff3329c55d2aeec96d55288a679a4a9cc
SHA512b7ae683a9211c6c2fcc6d4c1359add7ecca3ef73928cc611bb11b14c00b97b5e75c50f6d103c7c07cc9fde6e95bdb7e5b5f39983c0e3301700b95b68e897c9c3
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Filesize
8KB
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Filesize
8KB