Analysis
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max time kernel
149s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
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submitted
30-07-2024 22:21
General
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Target
2024-07-30_1abe85ead0976834f79ba9a56cbb2422_phobos.exe
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Size
56KB
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MD5
1abe85ead0976834f79ba9a56cbb2422
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SHA1
c6f8a4bdff9df3b2aef9efdead0066f7c1d0e2c2
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SHA256
f40d36cf476c6b13a5d082c616812764f6832a7bf29f73584860157136011c35
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SHA512
ad498b79ee134a7825378896385b3fbbeec7a2ab0c8bf946c34240739252ff4d03cd35f1a9a75a0eaf77241ad07f01737794c3a5e314869bc1094e2a1d30e7fe
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SSDEEP
1536:bNeRBl5PT/rx1mzwRMSTdLpJEBq+B2+E+C6:bQRrmzwR5JH+AS
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Signatures
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Phobos
Phobos ransomware appeared at the beginning of 2019.
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Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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Deletes shadow copies 3 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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Renames multiple (315) 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 2 IoCs
Uses wbadmin.exe to inhibit system recovery.
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Modifies Windows Firewall 2 TTPs 2 IoCs
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Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
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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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Browser Information Discovery 1 TTPs
Enumerate browser information.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
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System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Interacts with shadow copies 3 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Modifies Internet Explorer settings 1 TTPs 4 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 64 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\2024-07-30_1abe85ead0976834f79ba9a56cbb2422_phobos.exe"C:\Users\Admin\AppData\Local\Temp\2024-07-30_1abe85ead0976834f79ba9a56cbb2422_phobos.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\2024-07-30_1abe85ead0976834f79ba9a56cbb2422_phobos.exe"C:\Users\Admin\AppData\Local\Temp\2024-07-30_1abe85ead0976834f79ba9a56cbb2422_phobos.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
- Event Triggered Execution: Netsh Helper DLL
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C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
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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⤵
- System Location Discovery: System Language Discovery
- 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⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta"2⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\info.hta"2⤵
- System Location Discovery: System Language Discovery
- 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 v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Direct Volume Access
1Impair Defenses
1Disable or Modify System Firewall
1Indicator Removal
3File Deletion
3Modify Registry
2Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
23.5MB
MD5882ae1cefbb45e06bf77714a210f46d6
SHA1df07d1258ed04ab13aa75d185bdf6170e633e435
SHA256f7cdae7ce15a8d8cea6710d62470754f563f9e51dea04dbf99f537f3fca69120
SHA512f23bf71fd3eb83b794b44f913591a22c089cbd86e9ab40154939ad11520d691dea99be02855ab1452cfceb456d50ddbe85c2aac39a66e6a1d400d93c344e37a1
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Filesize
5KB
MD553d706f3b160f98fc20e65a70d33413d
SHA1e1e3b2986c659b8cf471242cd01bff9f70db1d37
SHA2561082e7c1afbe4160afc35d8a2b502c3b6e01805424568f90a5a5f3c31f9087ec
SHA5128d0e1ce293de96268cc51bfb6c5b84a1d7dce853118fdc2a29cd7f6b1560b8283628369cdc5a4d1c77b0339ffc2e49f598cf3e00fafb7fbe67825685b875ce94