Analysis
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max time kernel
120s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20230712-en -
resource tags
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submitted
21-08-2023 17:06
General
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Target
eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c.exe
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Size
744KB
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MD5
8b3ebf83ef13fc6fb805a60851635751
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SHA1
72a285b0b7ddd02a269dcdd8a77e93e32d475344
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SHA256
eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c
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SHA512
d04197080a6124cddd8ce2b8e7c2cd53ff6adf623379aa80f1206ebc3d2bac169a01c18a9eeeef9d71eb37e7a0e2232eecbf130fe577c2089aea05a7542caccf
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SSDEEP
12288:MQwyiloPKmAGzrdm+blQnjL0U0ESJ2caaE17hrCyvMzu6FRAbKSXut0wGc0U6xbP:syilG1AGzrdm+ajoU82caaEDWyvMW+lM
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 (317) 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 1 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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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 49 IoCs
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Suspicious use of WriteProcessMemory 60 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c.exe"C:\Users\Admin\AppData\Local\Temp\eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c.exeC:\Users\Admin\AppData\Local\Temp\eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c.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\eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c.exe"C:\Users\Admin\AppData\Local\Temp\eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c.exe"3⤵
- Suspicious use of AdjustPrivilegeToken
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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⤵
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta"3⤵
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta"3⤵
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\info.hta"3⤵
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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⤵
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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
MD59f8bc323dcee112996ed53ec03c7bc53
SHA19db0c0f6eaef16d684bacd8e0b6f17aaab46cb33
SHA256ac599c844b90599f9ff9ec7f435bf2ba5bd85a693aeb444ecda7a4b06e2a4071
SHA512db387b537356a7d9f88bdab504363860cb8c17358c17b968bfe9a63812526467f767fafced7f306f5cde178b653ec0450ecdd17e28616f0f0e08459c8f56fd77
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Filesize
5KB
MD55cf2b85fa12d0d7bc002d74297cab773
SHA1525471b60ed35e1c84b8e82e9f09018053e16d14
SHA2562bb699cb4a83438903b5e3e2ceae5d4d1342edd26531b600fa542889647b4955
SHA512f12aa75de5f7c56b4f4070cb7908c95b43434da3ce8853168df0391303bb325d1cf2650c98919089983dfce87fe8e38cca9435617b7a51440963446b2d66f633
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Filesize
5KB
MD55cf2b85fa12d0d7bc002d74297cab773
SHA1525471b60ed35e1c84b8e82e9f09018053e16d14
SHA2562bb699cb4a83438903b5e3e2ceae5d4d1342edd26531b600fa542889647b4955
SHA512f12aa75de5f7c56b4f4070cb7908c95b43434da3ce8853168df0391303bb325d1cf2650c98919089983dfce87fe8e38cca9435617b7a51440963446b2d66f633
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Filesize
5KB
MD55cf2b85fa12d0d7bc002d74297cab773
SHA1525471b60ed35e1c84b8e82e9f09018053e16d14
SHA2562bb699cb4a83438903b5e3e2ceae5d4d1342edd26531b600fa542889647b4955
SHA512f12aa75de5f7c56b4f4070cb7908c95b43434da3ce8853168df0391303bb325d1cf2650c98919089983dfce87fe8e38cca9435617b7a51440963446b2d66f633
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Filesize
5KB
MD55cf2b85fa12d0d7bc002d74297cab773
SHA1525471b60ed35e1c84b8e82e9f09018053e16d14
SHA2562bb699cb4a83438903b5e3e2ceae5d4d1342edd26531b600fa542889647b4955
SHA512f12aa75de5f7c56b4f4070cb7908c95b43434da3ce8853168df0391303bb325d1cf2650c98919089983dfce87fe8e38cca9435617b7a51440963446b2d66f633
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Filesize
5KB
MD55cf2b85fa12d0d7bc002d74297cab773
SHA1525471b60ed35e1c84b8e82e9f09018053e16d14
SHA2562bb699cb4a83438903b5e3e2ceae5d4d1342edd26531b600fa542889647b4955
SHA512f12aa75de5f7c56b4f4070cb7908c95b43434da3ce8853168df0391303bb325d1cf2650c98919089983dfce87fe8e38cca9435617b7a51440963446b2d66f633
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Filesize
6.9MB
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Filesize
768KB
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Filesize
256KB
-
Filesize
6.9MB
-
Filesize
256KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
6.9MB
-
Filesize
256KB
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Filesize
4KB
-
Filesize
256KB
-
Filesize
216KB
-
Filesize
304KB
-
Filesize
6.9MB
-
Filesize
768KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
752KB
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Filesize
256KB
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Filesize
6.9MB
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Filesize
76KB
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Filesize
76KB