Analysis
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max time kernel
150s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
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submitted
03-10-2023 15:25
General
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Target
fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519_JC.exe
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Size
260KB
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MD5
c2317e46c10621501b8fb1022136b0c3
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SHA1
982a7c80f27f9dd71b8214e07c7beb81c13d3ec7
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SHA256
fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519
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SHA512
2b28c632bda2a059f7725d28ee068f397385bf09714fbb8ad9b76f3b826d7bda9051d87911e29ba2bb36e5288441d06bc0f8ba85a1f28514ca22f7f07ed5850d
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SSDEEP
6144:b6ugHwcL96M7w0hpE6E7v1/Lf97PMam5pRLUZmlZe8cUy:brgHwzlQEr1/DZPMasPLi8R
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 (277) 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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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 59 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\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519_JC.exe"C:\Users\Admin\AppData\Local\Temp\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519_JC.exe"1⤵
- 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\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519_JC.exeC:\Users\Admin\AppData\Local\Temp\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519_JC.exe2⤵
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C:\Users\Admin\AppData\Local\Temp\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519_JC.exeC:\Users\Admin\AppData\Local\Temp\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519_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\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519_JC.exe"C:\Users\Admin\AppData\Local\Temp\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519_JC.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519_JC.exeC:\Users\Admin\AppData\Local\Temp\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519_JC.exe4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2604 -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\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
143.1MB
MD5ddb9983db4fc7f7e653cdb6b78620820
SHA1c288dc53edb5edd0719095bc8216775e872175d7
SHA2569b700842733d8581ce74d9720d0b364e340a174c9f77b65a750adf9e8c12f0f7
SHA512b8a0e58e1764f7cf438804e8180c5f6029e0a229a2c98f268a7e5d03efedb289f8eea03201b49ed8e18804c42bda2b26c04bc7c1738a63b137f3ab3873ad90aa
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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
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
288KB
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Filesize
6.9MB
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Filesize
4KB
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Filesize
280KB
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Filesize
256KB
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Filesize
304KB
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Filesize
208KB
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Filesize
6.9MB
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Filesize
6.9MB
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Filesize
288KB