Analysis
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max time kernel
151s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
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submitted
17-10-2023 17:02
General
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Target
NEAS.NEAS482754d66d01aa3579f007c2b3c3d0591865eb60ba60b9c28c66fe6f4ac53c52exeexe_JC.exe
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Size
1.7MB
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MD5
a567048dd823ff2d395ddd95d1fa5302
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SHA1
7332956debc4fb14a54d69b0b858bd5b04becac1
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SHA256
482754d66d01aa3579f007c2b3c3d0591865eb60ba60b9c28c66fe6f4ac53c52
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SHA512
73f2f79a7488de241b8cd484dcf435a1c838f696c5614cfad2164984512b9f8eb4107cca58828071a09c522eb5a208f85be7a698b8461fc6d681552f01c90d8b
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SSDEEP
24576:Y9mJWeLfEmWZOLJCj4ZYM9UA6/OUO7oNmXKj8okyH7l/meRG:5LfELGUO7oNm6j8okLI
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\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 (312) 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\NEAS.NEAS482754d66d01aa3579f007c2b3c3d0591865eb60ba60b9c28c66fe6f4ac53c52exeexe_JC.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.NEAS482754d66d01aa3579f007c2b3c3d0591865eb60ba60b9c28c66fe6f4ac53c52exeexe_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\NEAS.NEAS482754d66d01aa3579f007c2b3c3d0591865eb60ba60b9c28c66fe6f4ac53c52exeexe_JC.exeC:\Users\Admin\AppData\Local\Temp\NEAS.NEAS482754d66d01aa3579f007c2b3c3d0591865eb60ba60b9c28c66fe6f4ac53c52exeexe_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\NEAS.NEAS482754d66d01aa3579f007c2b3c3d0591865eb60ba60b9c28c66fe6f4ac53c52exeexe_JC.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.NEAS482754d66d01aa3579f007c2b3c3d0591865eb60ba60b9c28c66fe6f4ac53c52exeexe_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\NEAS.NEAS482754d66d01aa3579f007c2b3c3d0591865eb60ba60b9c28c66fe6f4ac53c52exeexe_JC.exeC:\Users\Admin\AppData\Local\Temp\NEAS.NEAS482754d66d01aa3579f007c2b3c3d0591865eb60ba60b9c28c66fe6f4ac53c52exeexe_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\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
MD56ee452a1a9369b9225cc9264a4455f06
SHA1959feb6d3fbaf3a68754c548439ff97e8e125425
SHA25627fa72b2444c3d9769bdfa2576db43d1f10c795a2a86bae1bd3ebadc2bb37e9f
SHA512e705246af8fd8b66d75a619f3612026119ef847b367d62906a3c594c97142ae07c1fd5dea52e348d55a95b9838c9ff0af88492719d682e693d4418c8c9dae027
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Filesize
5KB
MD512d0e3ffb4cf69ad0612d1711d8fcb15
SHA1fd3019f2cd3d581793d6e7a7acf2d78142448282
SHA2562542a7d75476b3d704e64199849ae3c5879d06ccc6ed1157bc098e3b16b2d1d2
SHA51293c8370a38fe59dc6e68ad7a28aa00b57d646ae972dd33162fbc591f82e0bc0d19010a39f988a4b411f9223ad6ed4714b9b450d8f3843878356e9ec42482dfbd
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Filesize
5KB
MD512d0e3ffb4cf69ad0612d1711d8fcb15
SHA1fd3019f2cd3d581793d6e7a7acf2d78142448282
SHA2562542a7d75476b3d704e64199849ae3c5879d06ccc6ed1157bc098e3b16b2d1d2
SHA51293c8370a38fe59dc6e68ad7a28aa00b57d646ae972dd33162fbc591f82e0bc0d19010a39f988a4b411f9223ad6ed4714b9b450d8f3843878356e9ec42482dfbd
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Filesize
5KB
MD512d0e3ffb4cf69ad0612d1711d8fcb15
SHA1fd3019f2cd3d581793d6e7a7acf2d78142448282
SHA2562542a7d75476b3d704e64199849ae3c5879d06ccc6ed1157bc098e3b16b2d1d2
SHA51293c8370a38fe59dc6e68ad7a28aa00b57d646ae972dd33162fbc591f82e0bc0d19010a39f988a4b411f9223ad6ed4714b9b450d8f3843878356e9ec42482dfbd
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Filesize
5KB
MD512d0e3ffb4cf69ad0612d1711d8fcb15
SHA1fd3019f2cd3d581793d6e7a7acf2d78142448282
SHA2562542a7d75476b3d704e64199849ae3c5879d06ccc6ed1157bc098e3b16b2d1d2
SHA51293c8370a38fe59dc6e68ad7a28aa00b57d646ae972dd33162fbc591f82e0bc0d19010a39f988a4b411f9223ad6ed4714b9b450d8f3843878356e9ec42482dfbd
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Filesize
5KB
MD512d0e3ffb4cf69ad0612d1711d8fcb15
SHA1fd3019f2cd3d581793d6e7a7acf2d78142448282
SHA2562542a7d75476b3d704e64199849ae3c5879d06ccc6ed1157bc098e3b16b2d1d2
SHA51293c8370a38fe59dc6e68ad7a28aa00b57d646ae972dd33162fbc591f82e0bc0d19010a39f988a4b411f9223ad6ed4714b9b450d8f3843878356e9ec42482dfbd
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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
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
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Filesize
76KB
-
Filesize
76KB
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Filesize
76KB
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Filesize
6.9MB
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Filesize
1.8MB
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Filesize
304KB
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Filesize
208KB
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Filesize
256KB
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Filesize
280KB
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Filesize
6.9MB
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Filesize
36KB
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Filesize
4KB
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Filesize
6.9MB
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Filesize
6.9MB
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Filesize
280KB
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Filesize
1.8MB