Analysis
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max time kernel
150s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
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submitted
01-10-2023 06:19
General
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Target
b3e80316dc1e01af60bcea7218ab5ebfe81432643d29ab46b22e3b11658606d5.exe
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Size
485KB
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MD5
ef5f692e2fa2217e1da225e8270dd704
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SHA1
17ec78fad167f76fc93f6b4e723071c3774ac092
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SHA256
b3e80316dc1e01af60bcea7218ab5ebfe81432643d29ab46b22e3b11658606d5
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SHA512
2cd9f42fb1a8b29017b1b792676bffdee07ac332c1d7eef7e11e0fe0dfb5257774602c628df7e2241d820364bc547b0e8a48ccdc738982b301b2bf90f0ae14e0
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SSDEEP
12288:FvLDhgtIO1ogNfJEoohlHr8yfu52/BCP04:BLDOFCLHGY/sJ
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 (467) 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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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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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 62 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\b3e80316dc1e01af60bcea7218ab5ebfe81432643d29ab46b22e3b11658606d5.exe"C:\Users\Admin\AppData\Local\Temp\b3e80316dc1e01af60bcea7218ab5ebfe81432643d29ab46b22e3b11658606d5.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\b3e80316dc1e01af60bcea7218ab5ebfe81432643d29ab46b22e3b11658606d5.exeC:\Users\Admin\AppData\Local\Temp\b3e80316dc1e01af60bcea7218ab5ebfe81432643d29ab46b22e3b11658606d5.exe2⤵
- 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\b3e80316dc1e01af60bcea7218ab5ebfe81432643d29ab46b22e3b11658606d5.exe"C:\Users\Admin\AppData\Local\Temp\b3e80316dc1e01af60bcea7218ab5ebfe81432643d29ab46b22e3b11658606d5.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\b3e80316dc1e01af60bcea7218ab5ebfe81432643d29ab46b22e3b11658606d5.exeC:\Users\Admin\AppData\Local\Temp\b3e80316dc1e01af60bcea7218ab5ebfe81432643d29ab46b22e3b11658606d5.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" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}3⤵
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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}3⤵
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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}3⤵
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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}3⤵
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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⤵
- Checks SCSI registry key(s)
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
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
3.2MB
MD59bec1dfa62a6b7e70a8dbe2601377778
SHA1baa0ed45c1de2d25c92b1f4437b825cbe3dce6f4
SHA2562ff7da5b9f2437dcbf84f95ca2511b435edf966003e51c1bf49c1f455abef8d1
SHA5122d0339809bffdebe6e635315b173a49a77b8ff154cc6822b6786c60d53b3e7e66a8140530eafd3b80212663d333662030df66ee7a154fc23d785ff182b5291c8
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Filesize
927B
MD54a911455784f74e368a4c2c7876d76f4
SHA1a1700a0849ffb4f26671eb76da2489946b821c34
SHA256264098e15b5b33d425f3b76e45b7976b58f917048125041135f7e60d8151108c
SHA5124617591400409e1930195795a55e20d5f063042bb3e9fd1955099066e507b6ac8a1e3ae54cc42418e2639149b31bf7e58cd5743670d9030a15e29f14d813815d
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Filesize
5KB
MD568a0004aeab796ccae0a0b04a7c225fe
SHA1c9c425b686dcbc129183bb85dc8310b09a0330a9
SHA2569862b4dc9d9b6b57d2400bb238ecf7f5a5cfdb784181d30f04e41c45a5dc82e7
SHA5124fe926647540c809807e6fa0e1a5a86b07fb596407942e80f5ab33fe1d2c1ad7b8b837ee389960da8c302245c9e108bc4e0abb3600e254f5df16dee4e1f65cdc
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Filesize
5KB
MD568a0004aeab796ccae0a0b04a7c225fe
SHA1c9c425b686dcbc129183bb85dc8310b09a0330a9
SHA2569862b4dc9d9b6b57d2400bb238ecf7f5a5cfdb784181d30f04e41c45a5dc82e7
SHA5124fe926647540c809807e6fa0e1a5a86b07fb596407942e80f5ab33fe1d2c1ad7b8b837ee389960da8c302245c9e108bc4e0abb3600e254f5df16dee4e1f65cdc
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Filesize
5KB
MD568a0004aeab796ccae0a0b04a7c225fe
SHA1c9c425b686dcbc129183bb85dc8310b09a0330a9
SHA2569862b4dc9d9b6b57d2400bb238ecf7f5a5cfdb784181d30f04e41c45a5dc82e7
SHA5124fe926647540c809807e6fa0e1a5a86b07fb596407942e80f5ab33fe1d2c1ad7b8b837ee389960da8c302245c9e108bc4e0abb3600e254f5df16dee4e1f65cdc
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Filesize
5KB
MD568a0004aeab796ccae0a0b04a7c225fe
SHA1c9c425b686dcbc129183bb85dc8310b09a0330a9
SHA2569862b4dc9d9b6b57d2400bb238ecf7f5a5cfdb784181d30f04e41c45a5dc82e7
SHA5124fe926647540c809807e6fa0e1a5a86b07fb596407942e80f5ab33fe1d2c1ad7b8b837ee389960da8c302245c9e108bc4e0abb3600e254f5df16dee4e1f65cdc
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Filesize
5KB
MD568a0004aeab796ccae0a0b04a7c225fe
SHA1c9c425b686dcbc129183bb85dc8310b09a0330a9
SHA2569862b4dc9d9b6b57d2400bb238ecf7f5a5cfdb784181d30f04e41c45a5dc82e7
SHA5124fe926647540c809807e6fa0e1a5a86b07fb596407942e80f5ab33fe1d2c1ad7b8b837ee389960da8c302245c9e108bc4e0abb3600e254f5df16dee4e1f65cdc
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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
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
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
7.7MB
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Filesize
64KB
-
Filesize
7.7MB
-
Filesize
304KB
-
Filesize
512KB
-
Filesize
5.6MB
-
Filesize
7.7MB
-
Filesize
208KB
-
Filesize
280KB
-
Filesize
280KB
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Filesize
64KB
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Filesize
7.7MB