Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230621-en -
resource tags
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submitted
30-06-2023 11:22
General
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Target
0ex.exe
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Size
56KB
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MD5
966061cecee2b65fe7149dfa1d0f2c3a
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SHA1
691ed7b6c4c0bdd824ede0514aacda9d7adc51f1
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SHA256
b4b89828380c4781c7beafa6dce00ae38cd4adc13ad56792996e28c41def5c53
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SHA512
da3521494ea83949641137e8e0cc248129d81cb8264619a41b437e0709c445a70ee0ef79863a613c5a1466ca6880b65e1e7e4cefde2513ca6b36a9c7219b8e16
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SSDEEP
1536:RNeRBl5PT/rx1mzwRMSTdLpJOCHAsua6db57m8POe:RQRrmzwR5JWse
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\Users\Admin\Desktop\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 (485) 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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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 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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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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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 2 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 64 IoCs
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Suspicious use of WriteProcessMemory 42 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\0ex.exe"C:\Users\Admin\AppData\Local\Temp\0ex.exe"1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\0ex.exe"C:\Users\Admin\AppData\Local\Temp\0ex.exe"2⤵
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off3⤵
- Modifies Windows Firewall
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C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable3⤵
- Modifies Windows Firewall
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- 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 v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.2MB
MD55eaaa5ec75f6d39707f5a5239a91ae72
SHA1f3feae0b1e6fef22d074a3ed884847c93d5b3522
SHA256318f24de67848fbe3b4aac731012951e9a075c3cac577ae0de99a1b3b22c3575
SHA512b8cbb824e45e9dd14d25265c96094a10ede1e89935f6709153e8d74cfffd82faafc0333d6bfc7f96688c435372c8034329030d2d70a49f48dca56e243315a14f
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Filesize
5KB
MD5afef088838c720013c486621e7ffb163
SHA1b4964fc859e891b05f75061324706ed764235076
SHA256678748eaa572dd7fda56f19610f7edfbfd8d02f3067bbdb72619564c09caee0d
SHA512eabdb45d68992c0211561830f1a9cc984622f59c5785dd1b1931ef596f3baeda839642b864a773b708cc6888b87ccb61eddcfd3b1579258cb5d9df9bca3f91b0
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Filesize
5KB
MD5afef088838c720013c486621e7ffb163
SHA1b4964fc859e891b05f75061324706ed764235076
SHA256678748eaa572dd7fda56f19610f7edfbfd8d02f3067bbdb72619564c09caee0d
SHA512eabdb45d68992c0211561830f1a9cc984622f59c5785dd1b1931ef596f3baeda839642b864a773b708cc6888b87ccb61eddcfd3b1579258cb5d9df9bca3f91b0
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Filesize
5KB
MD5afef088838c720013c486621e7ffb163
SHA1b4964fc859e891b05f75061324706ed764235076
SHA256678748eaa572dd7fda56f19610f7edfbfd8d02f3067bbdb72619564c09caee0d
SHA512eabdb45d68992c0211561830f1a9cc984622f59c5785dd1b1931ef596f3baeda839642b864a773b708cc6888b87ccb61eddcfd3b1579258cb5d9df9bca3f91b0
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Filesize
5KB
MD5afef088838c720013c486621e7ffb163
SHA1b4964fc859e891b05f75061324706ed764235076
SHA256678748eaa572dd7fda56f19610f7edfbfd8d02f3067bbdb72619564c09caee0d
SHA512eabdb45d68992c0211561830f1a9cc984622f59c5785dd1b1931ef596f3baeda839642b864a773b708cc6888b87ccb61eddcfd3b1579258cb5d9df9bca3f91b0
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Filesize
5KB
MD5afef088838c720013c486621e7ffb163
SHA1b4964fc859e891b05f75061324706ed764235076
SHA256678748eaa572dd7fda56f19610f7edfbfd8d02f3067bbdb72619564c09caee0d
SHA512eabdb45d68992c0211561830f1a9cc984622f59c5785dd1b1931ef596f3baeda839642b864a773b708cc6888b87ccb61eddcfd3b1579258cb5d9df9bca3f91b0