Analysis
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max time kernel
150s -
max time network
133s -
platform
windows10-1703_x64 -
resource
win10-20230915-en -
resource tags
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submitted
06-10-2023 08:51
General
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Target
88f6a6455f92255a189526e36aeb581c95c28dc5e26357e7667f871444a336ba.exe
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Size
488KB
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MD5
1f7dd42295e1d8059c9cae2eff17109e
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SHA1
1d59046ef6c7d204e6ac74337ef534e3f9bd237c
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SHA256
88f6a6455f92255a189526e36aeb581c95c28dc5e26357e7667f871444a336ba
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SHA512
ee7c8017e3422d7749c60a16a231e7960bf9068dec4dd49b9ae6f62016c6de369f9473c1a95957a22f5ef3ce535464b21a2160bed1babf88714ce32a55bdf176
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SSDEEP
12288:RB9V0qCM18GVE8Swslkv92SCijw80Qqcasw4RQ5E5YG:RB9u9m8OsavESCwZNqcas+
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 (455) 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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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\88f6a6455f92255a189526e36aeb581c95c28dc5e26357e7667f871444a336ba.exe"C:\Users\Admin\AppData\Local\Temp\88f6a6455f92255a189526e36aeb581c95c28dc5e26357e7667f871444a336ba.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\88f6a6455f92255a189526e36aeb581c95c28dc5e26357e7667f871444a336ba.exeC:\Users\Admin\AppData\Local\Temp\88f6a6455f92255a189526e36aeb581c95c28dc5e26357e7667f871444a336ba.exe2⤵
- 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\88f6a6455f92255a189526e36aeb581c95c28dc5e26357e7667f871444a336ba.exe"C:\Users\Admin\AppData\Local\Temp\88f6a6455f92255a189526e36aeb581c95c28dc5e26357e7667f871444a336ba.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\88f6a6455f92255a189526e36aeb581c95c28dc5e26357e7667f871444a336ba.exeC:\Users\Admin\AppData\Local\Temp\88f6a6455f92255a189526e36aeb581c95c28dc5e26357e7667f871444a336ba.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
MD521a50b06a0b2a43e39dca0a6fa52170c
SHA1ea70eb5b66baf403f3225340542ff7d75d90e208
SHA25610078061c008f1bd05663d302f711d9313b1de1d74c7a280e0923e1f12ab7538
SHA512e264faf77338db15e9cf878c4f16bd6bbdce794598cbb0df724c2931218ca2dc9385c2c3627593cc6e36c502bed2b66f95f0839e1fe6a796a39a49c20bf72d95
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Filesize
927B
MD5ffe7bf10728fcdc9cfc28d6c2320a6f8
SHA1af407275e9830d40889da2e672d2e6af118c8cb8
SHA25672653cc5191f40cf26bcabcb5e0e41e53f23463f725007f74da78e36f9ec1522
SHA512766753516d36ef1065d29dd982e0b6ee4e84c0c17eb2b0a6ca056f6c8e2a908e53c169bbcb01ab8b9ba1be1463fdd4007398d964aed59de761c1a6213842776c
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Filesize
5KB
MD50df59ee1f11d21e8fac206f76c4e72df
SHA1f79592e4c581ab8536c9676ce43b986305e470a9
SHA2567e4882294439d42b5e1b408799c00cb7f4dc5d70e5c37c1c61c21ad81818b81b
SHA5126ab89b919e6db147e39b4d7d283cd9a7c0ff2b0d49d8b7737d0e7ec2e096b5e81f1e641726cf8e650251c23d354e72c09f81fd2797ca201a73e850400cb9fae0
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Filesize
5KB
MD50df59ee1f11d21e8fac206f76c4e72df
SHA1f79592e4c581ab8536c9676ce43b986305e470a9
SHA2567e4882294439d42b5e1b408799c00cb7f4dc5d70e5c37c1c61c21ad81818b81b
SHA5126ab89b919e6db147e39b4d7d283cd9a7c0ff2b0d49d8b7737d0e7ec2e096b5e81f1e641726cf8e650251c23d354e72c09f81fd2797ca201a73e850400cb9fae0
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Filesize
5KB
MD50df59ee1f11d21e8fac206f76c4e72df
SHA1f79592e4c581ab8536c9676ce43b986305e470a9
SHA2567e4882294439d42b5e1b408799c00cb7f4dc5d70e5c37c1c61c21ad81818b81b
SHA5126ab89b919e6db147e39b4d7d283cd9a7c0ff2b0d49d8b7737d0e7ec2e096b5e81f1e641726cf8e650251c23d354e72c09f81fd2797ca201a73e850400cb9fae0
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Filesize
5KB
MD50df59ee1f11d21e8fac206f76c4e72df
SHA1f79592e4c581ab8536c9676ce43b986305e470a9
SHA2567e4882294439d42b5e1b408799c00cb7f4dc5d70e5c37c1c61c21ad81818b81b
SHA5126ab89b919e6db147e39b4d7d283cd9a7c0ff2b0d49d8b7737d0e7ec2e096b5e81f1e641726cf8e650251c23d354e72c09f81fd2797ca201a73e850400cb9fae0
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Filesize
5KB
MD50df59ee1f11d21e8fac206f76c4e72df
SHA1f79592e4c581ab8536c9676ce43b986305e470a9
SHA2567e4882294439d42b5e1b408799c00cb7f4dc5d70e5c37c1c61c21ad81818b81b
SHA5126ab89b919e6db147e39b4d7d283cd9a7c0ff2b0d49d8b7737d0e7ec2e096b5e81f1e641726cf8e650251c23d354e72c09f81fd2797ca201a73e850400cb9fae0
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Filesize
5.0MB
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Filesize
304KB
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Filesize
6.9MB
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Filesize
208KB
-
Filesize
280KB
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Filesize
64KB
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Filesize
6.9MB
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Filesize
512KB
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Filesize
280KB
-
Filesize
6.9MB
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Filesize
64KB
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Filesize
6.9MB
-
Filesize
76KB
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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
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Filesize
76KB