Analysis
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max time kernel
151s -
max time network
134s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
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submitted
12-10-2023 16:45
General
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Target
9f40b69060a52731107baec84a0c0f8a1bfc1a62e8471b9cd69509aade9cb7f1.exe
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Size
295KB
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MD5
ff230f8ca501e06feedd202b40879e2b
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SHA1
6ffb1e4af21e5413b07d0b4951f2dfaaba6b26b0
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SHA256
9f40b69060a52731107baec84a0c0f8a1bfc1a62e8471b9cd69509aade9cb7f1
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SHA512
308edf14261f3763fe3bb65cef4b88473b91d02b032441d91cc87a9a49d7b20df381bae28eae7ded49cfca529bfe11da40d2f4ac2fa9c6495e6527604ca2d800
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SSDEEP
6144:ugyOoVGyCNHIbER9bbDHyzJxE5zPYS5ycCE+WQnaTzQNeqR0R:ugyr3CNHIbeym3FCEnYeq
Malware Config
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 2 IoCs
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Renames multiple (158) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Deletes backup catalog 3 TTPs 1 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 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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Adds Run key to start application 2 TTPs 2 IoCs
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Drops desktop.ini file(s) 12 IoCs
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Suspicious use of SetThreadContext 2 IoCs
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Drops file in Program Files directory 64 IoCs
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Program crash 1 IoCs
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Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 49 IoCs
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Suspicious use of WriteProcessMemory 55 IoCs
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Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\9f40b69060a52731107baec84a0c0f8a1bfc1a62e8471b9cd69509aade9cb7f1.exe"C:\Users\Admin\AppData\Local\Temp\9f40b69060a52731107baec84a0c0f8a1bfc1a62e8471b9cd69509aade9cb7f1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\9f40b69060a52731107baec84a0c0f8a1bfc1a62e8471b9cd69509aade9cb7f1.exeC:\Users\Admin\AppData\Local\Temp\9f40b69060a52731107baec84a0c0f8a1bfc1a62e8471b9cd69509aade9cb7f1.exe2⤵
- 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\9f40b69060a52731107baec84a0c0f8a1bfc1a62e8471b9cd69509aade9cb7f1.exe"C:\Users\Admin\AppData\Local\Temp\9f40b69060a52731107baec84a0c0f8a1bfc1a62e8471b9cd69509aade9cb7f1.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\9f40b69060a52731107baec84a0c0f8a1bfc1a62e8471b9cd69509aade9cb7f1.exeC:\Users\Admin\AppData\Local\Temp\9f40b69060a52731107baec84a0c0f8a1bfc1a62e8471b9cd69509aade9cb7f1.exe4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2600 -s 1645⤵
- Program crash
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off4⤵
- Modifies Windows Firewall
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C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable4⤵
- Modifies Windows Firewall
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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 v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
143.1MB
MD5d2c131b85153ad785a1c414ee0698ee2
SHA17faaf3d8c2daf5d50f27c90226bbf89c95f5947c
SHA25660ed3b88410515b859aa221241811d77dfa28e5125a974776ab14455b1073437
SHA51293be946421de257c2f1034b615fd121e5ceddc0d41f63953e46da7e3584f48f5124e566995402fd3600f98eb78a89b6e7c4f2a905c17564edc66697438b1ba6e
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
4KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
6.9MB
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Filesize
280KB
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Filesize
6.9MB
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Filesize
208KB
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Filesize
320KB
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Filesize
272KB
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Filesize
256KB
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Filesize
304KB
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Filesize
4KB
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Filesize
280KB
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Filesize
6.9MB
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Filesize
6.9MB
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Filesize
256KB
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Filesize
320KB