Analysis
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max time kernel
74s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
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submitted
02-10-2023 15:19
General
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Target
c2317e46c10621501b8fb1022136b0c3.exe
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Size
260KB
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MD5
c2317e46c10621501b8fb1022136b0c3
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SHA1
982a7c80f27f9dd71b8214e07c7beb81c13d3ec7
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SHA256
fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519
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SHA512
2b28c632bda2a059f7725d28ee068f397385bf09714fbb8ad9b76f3b826d7bda9051d87911e29ba2bb36e5288441d06bc0f8ba85a1f28514ca22f7f07ed5850d
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SSDEEP
6144:b6ugHwcL96M7w0hpE6E7v1/Lf97PMam5pRLUZmlZe8cUy:brgHwzlQEr1/DZPMasPLi8R
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 (312) 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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Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Modifies Internet Explorer settings 1 TTPs 4 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\c2317e46c10621501b8fb1022136b0c3.exe"C:\Users\Admin\AppData\Local\Temp\c2317e46c10621501b8fb1022136b0c3.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\c2317e46c10621501b8fb1022136b0c3.exeC:\Users\Admin\AppData\Local\Temp\c2317e46c10621501b8fb1022136b0c3.exe2⤵
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\c2317e46c10621501b8fb1022136b0c3.exe"C:\Users\Admin\AppData\Local\Temp\c2317e46c10621501b8fb1022136b0c3.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\c2317e46c10621501b8fb1022136b0c3.exeC:\Users\Admin\AppData\Local\Temp\c2317e46c10621501b8fb1022136b0c3.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\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\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\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
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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⤵
Network
MITRE ATT&CK Enterprise v15
Persistence
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
189.5MB
MD589a3ac9d0ec189bf56cb40e7d16cc121
SHA14beaa21e6a2f6f318d6a8ed529c37d8ef87fef32
SHA2568e0bc6d71ca58f12fb9824bfe71c583c03aa3dc64cced6af16f5bddf48a08b42
SHA512bd422525a97e5aa803f92ea75e131195c184ce3db4f9bff3c3fcab16d7e1e64e8702b75a51f920ad85d73dfed44131ec1b34abf5373e1a26b7a858a1fa9c7ea0
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Filesize
5KB
MD54efdf34b3b05c375034570651d7b1aa7
SHA12c6e57675f832ea2bd95d3cd3ac1408230eb9790
SHA256699ba651d82d874d83aed8d0d34bac3d65a7ccc52c701101b7da621d708ddc55
SHA51208f3ac4298ef398789af3eff72ea14bce387f4502244b0d84888e5d1dc6830d20b5cff9d88c0800eaa852a5ea5c62dde14cf57d9b22bc73a31d54e59ee49592f
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Filesize
5KB
MD54efdf34b3b05c375034570651d7b1aa7
SHA12c6e57675f832ea2bd95d3cd3ac1408230eb9790
SHA256699ba651d82d874d83aed8d0d34bac3d65a7ccc52c701101b7da621d708ddc55
SHA51208f3ac4298ef398789af3eff72ea14bce387f4502244b0d84888e5d1dc6830d20b5cff9d88c0800eaa852a5ea5c62dde14cf57d9b22bc73a31d54e59ee49592f
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Filesize
5KB
MD54efdf34b3b05c375034570651d7b1aa7
SHA12c6e57675f832ea2bd95d3cd3ac1408230eb9790
SHA256699ba651d82d874d83aed8d0d34bac3d65a7ccc52c701101b7da621d708ddc55
SHA51208f3ac4298ef398789af3eff72ea14bce387f4502244b0d84888e5d1dc6830d20b5cff9d88c0800eaa852a5ea5c62dde14cf57d9b22bc73a31d54e59ee49592f
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Filesize
5KB
MD54efdf34b3b05c375034570651d7b1aa7
SHA12c6e57675f832ea2bd95d3cd3ac1408230eb9790
SHA256699ba651d82d874d83aed8d0d34bac3d65a7ccc52c701101b7da621d708ddc55
SHA51208f3ac4298ef398789af3eff72ea14bce387f4502244b0d84888e5d1dc6830d20b5cff9d88c0800eaa852a5ea5c62dde14cf57d9b22bc73a31d54e59ee49592f
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Filesize
5KB
MD54efdf34b3b05c375034570651d7b1aa7
SHA12c6e57675f832ea2bd95d3cd3ac1408230eb9790
SHA256699ba651d82d874d83aed8d0d34bac3d65a7ccc52c701101b7da621d708ddc55
SHA51208f3ac4298ef398789af3eff72ea14bce387f4502244b0d84888e5d1dc6830d20b5cff9d88c0800eaa852a5ea5c62dde14cf57d9b22bc73a31d54e59ee49592f
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Filesize
288KB
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Filesize
6.9MB
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Filesize
6.9MB
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Filesize
4KB
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Filesize
36KB
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Filesize
208KB
-
Filesize
288KB
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Filesize
304KB
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Filesize
256KB
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Filesize
6.9MB
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Filesize
280KB
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Filesize
6.9MB
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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
4KB
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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
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Filesize
76KB