Analysis
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max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
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submitted
05-10-2023 01:59
General
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Target
790b64a5860a5069fedcb660efdffce2b5ab2195086100a6079697b662f0c198.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
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 (468) 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\790b64a5860a5069fedcb660efdffce2b5ab2195086100a6079697b662f0c198.exe"C:\Users\Admin\AppData\Local\Temp\790b64a5860a5069fedcb660efdffce2b5ab2195086100a6079697b662f0c198.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\790b64a5860a5069fedcb660efdffce2b5ab2195086100a6079697b662f0c198.exeC:\Users\Admin\AppData\Local\Temp\790b64a5860a5069fedcb660efdffce2b5ab2195086100a6079697b662f0c198.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\790b64a5860a5069fedcb660efdffce2b5ab2195086100a6079697b662f0c198.exe"C:\Users\Admin\AppData\Local\Temp\790b64a5860a5069fedcb660efdffce2b5ab2195086100a6079697b662f0c198.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\790b64a5860a5069fedcb660efdffce2b5ab2195086100a6079697b662f0c198.exeC:\Users\Admin\AppData\Local\Temp\790b64a5860a5069fedcb660efdffce2b5ab2195086100a6079697b662f0c198.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
MD504275d0325569e172909e7ab67e835d6
SHA169f9feb3b439e4c13850d7217464942a63f19ca9
SHA256e9d1168ffa4f1b5104d9f4f2a57d0997b32f38ebb5dad84a160d5d1d115a805e
SHA512f2e02d2b196e419ff20b1de5ffa4bfd7fbf0b1b77381f0b56c14f0d0de4a38c70fb3cf9f8aebff5b25f908de64b6b1d01419ae90b7ddaab4ebdd20b895c78f15
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Filesize
927B
MD54a911455784f74e368a4c2c7876d76f4
SHA1a1700a0849ffb4f26671eb76da2489946b821c34
SHA256264098e15b5b33d425f3b76e45b7976b58f917048125041135f7e60d8151108c
SHA5124617591400409e1930195795a55e20d5f063042bb3e9fd1955099066e507b6ac8a1e3ae54cc42418e2639149b31bf7e58cd5743670d9030a15e29f14d813815d
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Filesize
5KB
MD55be9678058db30a4edd8492961e4651c
SHA13f18270ed3fd867a1632bc885538b908cbac4860
SHA2565bd45f0734789a007be1d5ec3ab888588b4d0c467b5252609abaf5ad29283397
SHA512415a7a13f307b5dc31e354bd6b6d5d556279c7f5bbcb8880a299460836294ab2674df039f0aec014837581fb8b2eb88c0373bedaf43b18d116f9debd5838f828
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Filesize
5KB
MD55be9678058db30a4edd8492961e4651c
SHA13f18270ed3fd867a1632bc885538b908cbac4860
SHA2565bd45f0734789a007be1d5ec3ab888588b4d0c467b5252609abaf5ad29283397
SHA512415a7a13f307b5dc31e354bd6b6d5d556279c7f5bbcb8880a299460836294ab2674df039f0aec014837581fb8b2eb88c0373bedaf43b18d116f9debd5838f828
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Filesize
5KB
MD55be9678058db30a4edd8492961e4651c
SHA13f18270ed3fd867a1632bc885538b908cbac4860
SHA2565bd45f0734789a007be1d5ec3ab888588b4d0c467b5252609abaf5ad29283397
SHA512415a7a13f307b5dc31e354bd6b6d5d556279c7f5bbcb8880a299460836294ab2674df039f0aec014837581fb8b2eb88c0373bedaf43b18d116f9debd5838f828
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Filesize
5KB
MD55be9678058db30a4edd8492961e4651c
SHA13f18270ed3fd867a1632bc885538b908cbac4860
SHA2565bd45f0734789a007be1d5ec3ab888588b4d0c467b5252609abaf5ad29283397
SHA512415a7a13f307b5dc31e354bd6b6d5d556279c7f5bbcb8880a299460836294ab2674df039f0aec014837581fb8b2eb88c0373bedaf43b18d116f9debd5838f828
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Filesize
5KB
MD55be9678058db30a4edd8492961e4651c
SHA13f18270ed3fd867a1632bc885538b908cbac4860
SHA2565bd45f0734789a007be1d5ec3ab888588b4d0c467b5252609abaf5ad29283397
SHA512415a7a13f307b5dc31e354bd6b6d5d556279c7f5bbcb8880a299460836294ab2674df039f0aec014837581fb8b2eb88c0373bedaf43b18d116f9debd5838f828
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Filesize
76KB
-
Filesize
76KB
-
Filesize
304KB
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Filesize
5.6MB
-
Filesize
592KB
-
Filesize
208KB
-
Filesize
7.7MB
-
Filesize
280KB
-
Filesize
296KB
-
Filesize
64KB
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Filesize
7.7MB
-
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
-
Filesize
64KB
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Filesize
7.7MB