Analysis
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max time kernel
151s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
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submitted
12-10-2023 16:15
General
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Target
97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exe
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Size
270KB
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MD5
0a2f0447233fa3f8c754fc8142ab6f7a
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SHA1
57ad4363343ac0ac26e953bf5473e50327ce3994
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SHA256
97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7
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SHA512
764a1f3b939efa5f1e1e1794064bc3f8de14787c27802f75e352f7c62b4ef8822716c81a6ef32c9eb4100f8e4ae0eb7df9283a3beee3e190d548a472bb8c1117
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SSDEEP
6144:Vnc5VNMxG6QK8HwEFd2PTwwfyb2lMIw6Ou6AiC:VgN2G6v8HwQd2PleKVONBC
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 (209) 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) 14 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 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\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exe"C:\Users\Admin\AppData\Local\Temp\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exeC:\Users\Admin\AppData\Local\Temp\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.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\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exe"C:\Users\Admin\AppData\Local\Temp\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exeC:\Users\Admin\AppData\Local\Temp\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exe4⤵
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C:\Users\Admin\AppData\Local\Temp\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exeC:\Users\Admin\AppData\Local\Temp\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.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\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⤵
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
MD5c4637c41a643af3a95ec1c9a003eef0f
SHA152f7d8fb6496b603113e54ffc34f543962537216
SHA256bed464b9e1d6e88c3612385f122bdd90e3f4c4248da678972e0920323a120e2c
SHA512dda56bde6af972af3130616d079df0a34783c9b8630863263485e77f21169d430fca283d93e54111309ae6333eac5a81d69d212a4ced72c36c38d06b914219a5
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Filesize
6.9MB
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Filesize
296KB
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Filesize
280KB
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Filesize
256KB
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Filesize
208KB
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Filesize
304KB
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Filesize
6.9MB
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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
-
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
-
Filesize
76KB
-
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
256KB
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Filesize
280KB
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Filesize
6.9MB
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Filesize
296KB
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Filesize
76KB
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Filesize
4KB