Analysis
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max time kernel
151s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
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submitted
12-10-2023 00:13
General
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Target
32d1458fb5c0c08156568a658f30143786336a73dea1d76bef9becf4a55c0964.exe
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Size
262KB
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MD5
5d2b3f808075ab6e605f4242d9c7a398
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SHA1
2b0d4edf8ab7b84e7f8b5e05a18b39bf3ee5cf5b
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SHA256
32d1458fb5c0c08156568a658f30143786336a73dea1d76bef9becf4a55c0964
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SHA512
901a107dd865c14752cc61cfe9a08c5b50729a49d47b7010a03f44f5f3d51d9909c162bdd330771d9aa27f462f085fb2307543a8a28a62b46ed68ac7c037f797
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SSDEEP
6144:kxywx3MS8G0RaN8t/CynGqYVOlmA95LTF4/zc7ldxsOV:gLqS87RaN3yG30vLp4wyO
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 (110) 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) 11 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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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 51 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\32d1458fb5c0c08156568a658f30143786336a73dea1d76bef9becf4a55c0964.exe"C:\Users\Admin\AppData\Local\Temp\32d1458fb5c0c08156568a658f30143786336a73dea1d76bef9becf4a55c0964.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\32d1458fb5c0c08156568a658f30143786336a73dea1d76bef9becf4a55c0964.exeC:\Users\Admin\AppData\Local\Temp\32d1458fb5c0c08156568a658f30143786336a73dea1d76bef9becf4a55c0964.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\32d1458fb5c0c08156568a658f30143786336a73dea1d76bef9becf4a55c0964.exe"C:\Users\Admin\AppData\Local\Temp\32d1458fb5c0c08156568a658f30143786336a73dea1d76bef9becf4a55c0964.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\32d1458fb5c0c08156568a658f30143786336a73dea1d76bef9becf4a55c0964.exeC:\Users\Admin\AppData\Local\Temp\32d1458fb5c0c08156568a658f30143786336a73dea1d76bef9becf4a55c0964.exe4⤵
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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
189.5MB
MD5f858a8d8ecbbc5634e4262b35d285aeb
SHA106fc21657f33f5aaa0dd22ea9fdf4d9d2f9f6f1a
SHA2567717ad089a8fd5d72aea287bf9ef733d33a766aed4bda9d8dc02a43862a41ebd
SHA5122797290a2124e661d2cd85862ac5d78517c76646778e0a43b868fee55e4887d7a7251a298c77490451e451898db4064703fa1a2bbfef35fd822bc8a61f6f2ad9
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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
280KB
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Filesize
208KB
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Filesize
304KB
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Filesize
288KB
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Filesize
6.9MB
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Filesize
256KB
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Filesize
6.9MB
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Filesize
288KB
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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
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