Analysis
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max time kernel
150s -
max time network
132s -
platform
windows10-1703_x64 -
resource
win10-20230703-en -
resource tags
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submitted
07-09-2023 07:36
General
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Target
356799503f195db260e08a81d42a431b4ebd47cef94eddc96f24a0fd3e49d716.exe
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Size
630KB
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MD5
e244628c750d40509ef2e3e72e4c2049
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SHA1
f823f35c00580524fef34d9084721a4cea703016
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SHA256
356799503f195db260e08a81d42a431b4ebd47cef94eddc96f24a0fd3e49d716
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SHA512
329e78c0f70fb0af13624dc83263ef5ea3a5382e69b36ceb957d052db670d720fc99ff1275543bdc47d388d2cb4ffe560d468230fbe71dcb2f870c57d24b3cb8
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SSDEEP
12288:Etj+xbGF2Wi8qpq3ll2iEpiXH7Nu6GKy:aj0E2WNq03l0rpiXHhp
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\356799503f195db260e08a81d42a431b4ebd47cef94eddc96f24a0fd3e49d716.exe"C:\Users\Admin\AppData\Local\Temp\356799503f195db260e08a81d42a431b4ebd47cef94eddc96f24a0fd3e49d716.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\356799503f195db260e08a81d42a431b4ebd47cef94eddc96f24a0fd3e49d716.exeC:\Users\Admin\AppData\Local\Temp\356799503f195db260e08a81d42a431b4ebd47cef94eddc96f24a0fd3e49d716.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\356799503f195db260e08a81d42a431b4ebd47cef94eddc96f24a0fd3e49d716.exe"C:\Users\Admin\AppData\Local\Temp\356799503f195db260e08a81d42a431b4ebd47cef94eddc96f24a0fd3e49d716.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\356799503f195db260e08a81d42a431b4ebd47cef94eddc96f24a0fd3e49d716.exeC:\Users\Admin\AppData\Local\Temp\356799503f195db260e08a81d42a431b4ebd47cef94eddc96f24a0fd3e49d716.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
MD5ea4aa55b78ab78808a33190d6b2898af
SHA137750f551d09f43e3560d3220d6e15a3dbfe1238
SHA256a779b4e06811194c7b266b2127dfdc035ac347fae264d115fdd85ca4fbd9c95f
SHA512cef7a70bdb6a3819bccb539476fc6554e6c2c58016fc1d4495ece7073c1ae646c532d133d6b01a14eefc703df232627ca1b4ee1127f8e51b4029122be7ed237c
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Filesize
927B
MD5ffe7bf10728fcdc9cfc28d6c2320a6f8
SHA1af407275e9830d40889da2e672d2e6af118c8cb8
SHA25672653cc5191f40cf26bcabcb5e0e41e53f23463f725007f74da78e36f9ec1522
SHA512766753516d36ef1065d29dd982e0b6ee4e84c0c17eb2b0a6ca056f6c8e2a908e53c169bbcb01ab8b9ba1be1463fdd4007398d964aed59de761c1a6213842776c
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Filesize
5KB
MD504158c68e737db64aeb3122633626577
SHA11991ec417b02df1fce5624424dbd3a3687a57e16
SHA2560e830bfe34dcf028b061efcaf5fd2cfeb0e72bd710217383e31d14cc2424d82b
SHA512221a69c067c697ae3fae15849d0fb153804d83c61a1692ea0b5c4740b9161e2bcc68940359ce0ac9b5983991a40eb099ff0c66c6ebfe826463c4a482006e963c
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Filesize
5KB
MD504158c68e737db64aeb3122633626577
SHA11991ec417b02df1fce5624424dbd3a3687a57e16
SHA2560e830bfe34dcf028b061efcaf5fd2cfeb0e72bd710217383e31d14cc2424d82b
SHA512221a69c067c697ae3fae15849d0fb153804d83c61a1692ea0b5c4740b9161e2bcc68940359ce0ac9b5983991a40eb099ff0c66c6ebfe826463c4a482006e963c
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Filesize
5KB
MD504158c68e737db64aeb3122633626577
SHA11991ec417b02df1fce5624424dbd3a3687a57e16
SHA2560e830bfe34dcf028b061efcaf5fd2cfeb0e72bd710217383e31d14cc2424d82b
SHA512221a69c067c697ae3fae15849d0fb153804d83c61a1692ea0b5c4740b9161e2bcc68940359ce0ac9b5983991a40eb099ff0c66c6ebfe826463c4a482006e963c
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Filesize
5KB
MD504158c68e737db64aeb3122633626577
SHA11991ec417b02df1fce5624424dbd3a3687a57e16
SHA2560e830bfe34dcf028b061efcaf5fd2cfeb0e72bd710217383e31d14cc2424d82b
SHA512221a69c067c697ae3fae15849d0fb153804d83c61a1692ea0b5c4740b9161e2bcc68940359ce0ac9b5983991a40eb099ff0c66c6ebfe826463c4a482006e963c
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Filesize
5KB
MD504158c68e737db64aeb3122633626577
SHA11991ec417b02df1fce5624424dbd3a3687a57e16
SHA2560e830bfe34dcf028b061efcaf5fd2cfeb0e72bd710217383e31d14cc2424d82b
SHA512221a69c067c697ae3fae15849d0fb153804d83c61a1692ea0b5c4740b9161e2bcc68940359ce0ac9b5983991a40eb099ff0c66c6ebfe826463c4a482006e963c
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Filesize
76KB
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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
-
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
6.9MB
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Filesize
64KB
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Filesize
6.9MB
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Filesize
6.9MB
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Filesize
5.0MB
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Filesize
656KB
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Filesize
304KB
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Filesize
208KB
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Filesize
64KB
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Filesize
280KB
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Filesize
6.9MB
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Filesize
76KB