Analysis
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max time kernel
152s -
max time network
164s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
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submitted
12-10-2023 04:26
General
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Target
phobos.exe
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Size
96KB
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MD5
053cbe71a53d9aa4ccf8962f108c1453
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SHA1
67930f9a901468eb24b09c1a48251d21e3057f10
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SHA256
3bcbafeeb899229e6b8821abc2c146754f4380442fcd4a7fb194be43d642a701
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SHA512
0bee441f51672b7715775d248bbd991f52cf346e91d90b0050f3920fa29c3f98a82721647e7544f909d8c4789c8024e76d1adcc4ef2706a2337f3b9860ec9603
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SSDEEP
1536:JxqjQ+P04wsmJCBhsrD5utwNeRBl5PT/rx1mzwRMSTdLpJGM:sr85CI5u2QRrmzwR5JT
Malware Config
Signatures
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Detect Neshta payload 15 IoCs
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Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
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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 (85) 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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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 1 IoCs
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Executes dropped EXE 2 IoCs
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Modifies system executable filetype association 2 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 2 IoCs
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Drops desktop.ini file(s) 3 IoCs
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Drops file in Program Files directory 64 IoCs
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Drops file in Windows directory 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 1 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 49 IoCs
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Suspicious use of WriteProcessMemory 21 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\phobos.exe"C:\Users\Admin\AppData\Local\Temp\phobos.exe"1⤵
- Checks computer location settings
- Modifies system executable filetype association
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\3582-490\phobos.exe"C:\Users\Admin\AppData\Local\Temp\3582-490\phobos.exe"2⤵
- Drops startup file
- Executes dropped EXE
- 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\3582-490\phobos.exe"C:\Users\Admin\AppData\Local\Temp\3582-490\phobos.exe"3⤵
- Executes dropped EXE
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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\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\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 v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Change Default File Association
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Change Default File Association
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.2MB
MD5fc82e0d23b673f92fe5661d9052884b5
SHA17c81077d232e4266be630c9b4f25dd263ebb626f
SHA256b8cfc22a8c5dd67288549d9aa585d28486fe21c080c2aa37e37df81f3d8c65e1
SHA5128da8d9ab37731921fb6c5c7400dbf9317d127d7989faf0ded57445da0180debf9672125609f94e14de1a6e0d806fb2eb87d8920b00d8fd32313d836affc72e2d
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Filesize
55KB
MD5dbe49454f210838f52873ce43829279b
SHA1d0270b8b459015e3b8a5e0577132052f5a36c1d5
SHA2562bf3f6ad7c97a8565b745670e1ab85926372e53ba56d1203cbd9f177f81bf449
SHA512787a261bf3feb903d50d2a89726c6519d4c81629ded5f203e84589fd5c51a6b544559ac159af4c0f2fc01e50fca20095aa48006fe2f4c6a905e4fe1a2c0086e8
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Filesize
55KB
MD5dbe49454f210838f52873ce43829279b
SHA1d0270b8b459015e3b8a5e0577132052f5a36c1d5
SHA2562bf3f6ad7c97a8565b745670e1ab85926372e53ba56d1203cbd9f177f81bf449
SHA512787a261bf3feb903d50d2a89726c6519d4c81629ded5f203e84589fd5c51a6b544559ac159af4c0f2fc01e50fca20095aa48006fe2f4c6a905e4fe1a2c0086e8
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Filesize
55KB
MD5dbe49454f210838f52873ce43829279b
SHA1d0270b8b459015e3b8a5e0577132052f5a36c1d5
SHA2562bf3f6ad7c97a8565b745670e1ab85926372e53ba56d1203cbd9f177f81bf449
SHA512787a261bf3feb903d50d2a89726c6519d4c81629ded5f203e84589fd5c51a6b544559ac159af4c0f2fc01e50fca20095aa48006fe2f4c6a905e4fe1a2c0086e8
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Filesize
55KB
MD5dbe49454f210838f52873ce43829279b
SHA1d0270b8b459015e3b8a5e0577132052f5a36c1d5
SHA2562bf3f6ad7c97a8565b745670e1ab85926372e53ba56d1203cbd9f177f81bf449
SHA512787a261bf3feb903d50d2a89726c6519d4c81629ded5f203e84589fd5c51a6b544559ac159af4c0f2fc01e50fca20095aa48006fe2f4c6a905e4fe1a2c0086e8
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Filesize
5.8MB
MD5de577e407ca5e2534e326556132ce61a
SHA134721003d85fc597c6442b5ab8f6e625b75e22fb
SHA2564c5582f5061208a3ebfac72d9e2d063028864d2eed9ae9e4ccfdbdd84fecef9a
SHA51299a738dccd02665dcdeb14a1593893720740fd1080309c7fb5881dbf0fa9666adc7a8ad9db9520c04580b7381f4d63188631398242c9bf48ef9bfa4c669dac43
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Filesize
108KB
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Filesize
108KB
-
Filesize
108KB
-
Filesize
108KB
-
Filesize
108KB
-
Filesize
108KB
-
Filesize
108KB
-
Filesize
108KB
-
Filesize
108KB
-
Filesize
108KB
-
Filesize
108KB
-
Filesize
108KB
-
Filesize
108KB
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Filesize
108KB