Analysis
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max time kernel
153s -
max time network
132s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
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submitted
03-10-2023 17:58
General
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Target
9bb98f2989a73a1e3d8d490669462422.exe
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Size
570KB
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MD5
9bb98f2989a73a1e3d8d490669462422
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SHA1
480b65fe568acd420dacd4b935529f2505e94151
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SHA256
790b64a5860a5069fedcb660efdffce2b5ab2195086100a6079697b662f0c198
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SHA512
f84fe96c065c214d3ae623d81da9e0aacc0fdfb3751baa02505b4348d89e6c4a6d29703e579aef5f48ddbb1956c154e228b2337657b135b0a973cc9907e1651e
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SSDEEP
12288:MTQp8eHRevUGXTYJ0M8SbYrAwhLtaczsQc0TwmqyAAJtT:cc82RGFj80pwY5aczXTNqyz
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
F:\info.hta
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 4 IoCs
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Renames multiple (311) 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 1 TTPs 2 IoCs
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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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Suspicious use of SetThreadContext 2 IoCs
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Drops file in Program Files directory 64 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Interacts with shadow copies 2 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\9bb98f2989a73a1e3d8d490669462422.exe"C:\Users\Admin\AppData\Local\Temp\9bb98f2989a73a1e3d8d490669462422.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\9bb98f2989a73a1e3d8d490669462422.exeC:\Users\Admin\AppData\Local\Temp\9bb98f2989a73a1e3d8d490669462422.exe2⤵
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C:\Users\Admin\AppData\Local\Temp\9bb98f2989a73a1e3d8d490669462422.exeC:\Users\Admin\AppData\Local\Temp\9bb98f2989a73a1e3d8d490669462422.exe2⤵
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C:\Users\Admin\AppData\Local\Temp\9bb98f2989a73a1e3d8d490669462422.exeC:\Users\Admin\AppData\Local\Temp\9bb98f2989a73a1e3d8d490669462422.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\9bb98f2989a73a1e3d8d490669462422.exe"C:\Users\Admin\AppData\Local\Temp\9bb98f2989a73a1e3d8d490669462422.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\9bb98f2989a73a1e3d8d490669462422.exeC:\Users\Admin\AppData\Local\Temp\9bb98f2989a73a1e3d8d490669462422.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\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
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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
MD5a0b90f715fbd0b912b213d8a06c5d49f
SHA1c187e027f62426431a1f2e68d9c86cebe63545e3
SHA25668737e474ab0e914d9d461d97d03398c8cb209ac52e077b70e31157dc2ce84f6
SHA51284d3452484c3dd9b1ddf17ead981a2ffbdc4c416a273f5ab19ea74c947b6fc3e38b8dacdb77536023eb232340e9feab05b0d58cf50bec361e859353cbbb54e04
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Filesize
5KB
MD52cf99fc93127bcbf1f482f3e1cda1cd9
SHA19d7ccb1fc8c71bc40bf44e53cc4e217542966079
SHA256ad75b57b7d1620fb55d462b1e8a8e2767d7b37e9aea93f0613907a255c3aae26
SHA51225930658cc4e53e86deaef3620ebc2cc58cc354db1ecd86a94932f27329abdfedab11aa7a10264a4de5a599419b695526d179b84611603e18eef842d95a44e39
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Filesize
5KB
MD52cf99fc93127bcbf1f482f3e1cda1cd9
SHA19d7ccb1fc8c71bc40bf44e53cc4e217542966079
SHA256ad75b57b7d1620fb55d462b1e8a8e2767d7b37e9aea93f0613907a255c3aae26
SHA51225930658cc4e53e86deaef3620ebc2cc58cc354db1ecd86a94932f27329abdfedab11aa7a10264a4de5a599419b695526d179b84611603e18eef842d95a44e39
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Filesize
5KB
MD52cf99fc93127bcbf1f482f3e1cda1cd9
SHA19d7ccb1fc8c71bc40bf44e53cc4e217542966079
SHA256ad75b57b7d1620fb55d462b1e8a8e2767d7b37e9aea93f0613907a255c3aae26
SHA51225930658cc4e53e86deaef3620ebc2cc58cc354db1ecd86a94932f27329abdfedab11aa7a10264a4de5a599419b695526d179b84611603e18eef842d95a44e39
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Filesize
5KB
MD52cf99fc93127bcbf1f482f3e1cda1cd9
SHA19d7ccb1fc8c71bc40bf44e53cc4e217542966079
SHA256ad75b57b7d1620fb55d462b1e8a8e2767d7b37e9aea93f0613907a255c3aae26
SHA51225930658cc4e53e86deaef3620ebc2cc58cc354db1ecd86a94932f27329abdfedab11aa7a10264a4de5a599419b695526d179b84611603e18eef842d95a44e39
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Filesize
5KB
MD52cf99fc93127bcbf1f482f3e1cda1cd9
SHA19d7ccb1fc8c71bc40bf44e53cc4e217542966079
SHA256ad75b57b7d1620fb55d462b1e8a8e2767d7b37e9aea93f0613907a255c3aae26
SHA51225930658cc4e53e86deaef3620ebc2cc58cc354db1ecd86a94932f27329abdfedab11aa7a10264a4de5a599419b695526d179b84611603e18eef842d95a44e39
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Filesize
4KB
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Filesize
76KB
-
Filesize
208KB
-
Filesize
304KB
-
Filesize
280KB
-
Filesize
296KB
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Filesize
256KB
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Filesize
6.9MB
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Filesize
592KB
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Filesize
6.9MB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
4KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
6.9MB
-
Filesize
256KB
-
Filesize
280KB
-
Filesize
592KB
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Filesize
6.9MB