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
06-10-2023 05:38
General
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Target
ecdf7acb35e4268bcafb03b8af12f659.exe
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Size
686KB
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MD5
ecdf7acb35e4268bcafb03b8af12f659
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SHA1
93b0d892bd3fbb7d3d9efb69fffdc060159d4536
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SHA256
c0539fd02ca0184925a932a9e926c681dc9c81b5de4624250f2dd885ca5c4763
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SHA512
5cd325c7a0a47921e940480c4e3f983b5b56a2906639e6f2a67d3264e039f06034d286f68e36a1b1ae7642d1ac0e274283d5d45381cede14ba83177355f1017d
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SSDEEP
12288:UzRlcffXwJsWFAFnjJPQJq+6byL3z5SjMa1jkSC9U:ujB0JYcAa1S
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\users\public\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 (589) 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 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\ecdf7acb35e4268bcafb03b8af12f659.exe"C:\Users\Admin\AppData\Local\Temp\ecdf7acb35e4268bcafb03b8af12f659.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\ecdf7acb35e4268bcafb03b8af12f659.exeC:\Users\Admin\AppData\Local\Temp\ecdf7acb35e4268bcafb03b8af12f659.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\ecdf7acb35e4268bcafb03b8af12f659.exe"C:\Users\Admin\AppData\Local\Temp\ecdf7acb35e4268bcafb03b8af12f659.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\ecdf7acb35e4268bcafb03b8af12f659.exeC:\Users\Admin\AppData\Local\Temp\ecdf7acb35e4268bcafb03b8af12f659.exe4⤵
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C:\Users\Admin\AppData\Local\Temp\ecdf7acb35e4268bcafb03b8af12f659.exeC:\Users\Admin\AppData\Local\Temp\ecdf7acb35e4268bcafb03b8af12f659.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
MD539b34d9176ff92caa118292e35419bbe
SHA173195ef87160b66e0deaa4209a397574a6f323b8
SHA2568d6422dc7339d4e6ba46689c8399f346dd3a70c31f7b72ae526ea98eca807c84
SHA51227b3a1b0fab85d95479b90204b647ebb128fea55f373069d62f9e3e6ecd6358273b90405a61d9ead3294e7782cce4d45c6e1acb501b6fbeecdadfe6408a5fb64
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Filesize
927B
MD54a911455784f74e368a4c2c7876d76f4
SHA1a1700a0849ffb4f26671eb76da2489946b821c34
SHA256264098e15b5b33d425f3b76e45b7976b58f917048125041135f7e60d8151108c
SHA5124617591400409e1930195795a55e20d5f063042bb3e9fd1955099066e507b6ac8a1e3ae54cc42418e2639149b31bf7e58cd5743670d9030a15e29f14d813815d
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Filesize
5KB
MD5007028ab7461e07ec2af74d89b0248e7
SHA1189b1ba58db6eb884812e863f2eb75148f72d716
SHA256223cb7ede017fa4f430170154c4e195e9a5a6eb2edf79969e852e754a717fb15
SHA5129bee2c238de8b49d1c35f03a4283f0dc3de8f3248efa2c32dc6bf0f096c0ed8d7b0707d616226339350d28cfea2133516d8e835cee4924dbbb7249741a80b1fd
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Filesize
5KB
MD5007028ab7461e07ec2af74d89b0248e7
SHA1189b1ba58db6eb884812e863f2eb75148f72d716
SHA256223cb7ede017fa4f430170154c4e195e9a5a6eb2edf79969e852e754a717fb15
SHA5129bee2c238de8b49d1c35f03a4283f0dc3de8f3248efa2c32dc6bf0f096c0ed8d7b0707d616226339350d28cfea2133516d8e835cee4924dbbb7249741a80b1fd
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Filesize
5KB
MD5007028ab7461e07ec2af74d89b0248e7
SHA1189b1ba58db6eb884812e863f2eb75148f72d716
SHA256223cb7ede017fa4f430170154c4e195e9a5a6eb2edf79969e852e754a717fb15
SHA5129bee2c238de8b49d1c35f03a4283f0dc3de8f3248efa2c32dc6bf0f096c0ed8d7b0707d616226339350d28cfea2133516d8e835cee4924dbbb7249741a80b1fd
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Filesize
5KB
MD5007028ab7461e07ec2af74d89b0248e7
SHA1189b1ba58db6eb884812e863f2eb75148f72d716
SHA256223cb7ede017fa4f430170154c4e195e9a5a6eb2edf79969e852e754a717fb15
SHA5129bee2c238de8b49d1c35f03a4283f0dc3de8f3248efa2c32dc6bf0f096c0ed8d7b0707d616226339350d28cfea2133516d8e835cee4924dbbb7249741a80b1fd
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Filesize
5KB
MD5007028ab7461e07ec2af74d89b0248e7
SHA1189b1ba58db6eb884812e863f2eb75148f72d716
SHA256223cb7ede017fa4f430170154c4e195e9a5a6eb2edf79969e852e754a717fb15
SHA5129bee2c238de8b49d1c35f03a4283f0dc3de8f3248efa2c32dc6bf0f096c0ed8d7b0707d616226339350d28cfea2133516d8e835cee4924dbbb7249741a80b1fd
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Filesize
7.7MB
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Filesize
64KB
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Filesize
7.7MB
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Filesize
76KB
-
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
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Filesize
76KB
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Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
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
7.7MB
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Filesize
5.6MB
-
Filesize
712KB
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Filesize
304KB
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Filesize
208KB
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Filesize
280KB
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Filesize
64KB
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Filesize
7.7MB