Analysis
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max time kernel
150s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
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submitted
12-10-2023 13:41
General
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Target
d922c94b64e04ea8b2be3ca4ed31e65e.exe
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Size
262KB
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MD5
d922c94b64e04ea8b2be3ca4ed31e65e
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SHA1
73674302ab4d7ddf203eaa6edc56e8538377fbcb
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SHA256
681f180735ec833997bea4eb26c58f9c2e39980cd0a351e0b5cd99c502b33ae8
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SHA512
130d5fdcbc5ab1e3fc20ecf5aca5052381ed18e2612e014817705e9a34fdd22015b05ad7b6bcc4c1246a3e98e1eacb855a700267979e4957185a3920f2eb187e
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SSDEEP
6144:t7Wq2H9tbX4BiMAFlmkUlPhIi3Jk6gd1yiKXTd:t7WJD4IMqlmLPhlJkxyXT
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 (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\d922c94b64e04ea8b2be3ca4ed31e65e.exe"C:\Users\Admin\AppData\Local\Temp\d922c94b64e04ea8b2be3ca4ed31e65e.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\d922c94b64e04ea8b2be3ca4ed31e65e.exeC:\Users\Admin\AppData\Local\Temp\d922c94b64e04ea8b2be3ca4ed31e65e.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\d922c94b64e04ea8b2be3ca4ed31e65e.exe"C:\Users\Admin\AppData\Local\Temp\d922c94b64e04ea8b2be3ca4ed31e65e.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\d922c94b64e04ea8b2be3ca4ed31e65e.exeC:\Users\Admin\AppData\Local\Temp\d922c94b64e04ea8b2be3ca4ed31e65e.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
143.1MB
MD5560380861eb915275164ddbcccb4cd96
SHA1cd8e61bc9bf1013362396f62d8c918e8e511f817
SHA256f98f17bb8c557d0f3a7d160cd0191170562e8999c18b5e1e9eabc8fb9a80fa41
SHA512eefa1baca285a60efeadba63496e4627ee7c20f6b876fba08124939fa95e88ad7e2c7d86ee6f0ce5f36b8feb3d930fb6323f85463bcc2803fc4240fd5383ba46
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Filesize
5KB
MD5bcdd9282d490a2954b59f51fb416fdf9
SHA1e0d3dbe93f10eb171183366b6a33a76722234f4e
SHA256294539794cfaf6cf09d206ad4f81191dd78c180e7444b851e33d494e9b5a69a6
SHA512b7854d7df250e31bd7281d3bf5ef828af9c2fc34638f50d67b74a716bdd8c68a33e490412c5c7f847002742a70f7f1209c1f559c3c7f8f4059eb74f32ba85e9e
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Filesize
5KB
MD5bcdd9282d490a2954b59f51fb416fdf9
SHA1e0d3dbe93f10eb171183366b6a33a76722234f4e
SHA256294539794cfaf6cf09d206ad4f81191dd78c180e7444b851e33d494e9b5a69a6
SHA512b7854d7df250e31bd7281d3bf5ef828af9c2fc34638f50d67b74a716bdd8c68a33e490412c5c7f847002742a70f7f1209c1f559c3c7f8f4059eb74f32ba85e9e
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Filesize
5KB
MD5bcdd9282d490a2954b59f51fb416fdf9
SHA1e0d3dbe93f10eb171183366b6a33a76722234f4e
SHA256294539794cfaf6cf09d206ad4f81191dd78c180e7444b851e33d494e9b5a69a6
SHA512b7854d7df250e31bd7281d3bf5ef828af9c2fc34638f50d67b74a716bdd8c68a33e490412c5c7f847002742a70f7f1209c1f559c3c7f8f4059eb74f32ba85e9e
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Filesize
5KB
MD5bcdd9282d490a2954b59f51fb416fdf9
SHA1e0d3dbe93f10eb171183366b6a33a76722234f4e
SHA256294539794cfaf6cf09d206ad4f81191dd78c180e7444b851e33d494e9b5a69a6
SHA512b7854d7df250e31bd7281d3bf5ef828af9c2fc34638f50d67b74a716bdd8c68a33e490412c5c7f847002742a70f7f1209c1f559c3c7f8f4059eb74f32ba85e9e
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Filesize
5KB
MD5bcdd9282d490a2954b59f51fb416fdf9
SHA1e0d3dbe93f10eb171183366b6a33a76722234f4e
SHA256294539794cfaf6cf09d206ad4f81191dd78c180e7444b851e33d494e9b5a69a6
SHA512b7854d7df250e31bd7281d3bf5ef828af9c2fc34638f50d67b74a716bdd8c68a33e490412c5c7f847002742a70f7f1209c1f559c3c7f8f4059eb74f32ba85e9e
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Filesize
6.9MB
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Filesize
304KB
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Filesize
208KB
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Filesize
256KB
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Filesize
280KB
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Filesize
288KB
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Filesize
6.9MB
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Filesize
76KB
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Filesize
4KB
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Filesize
6.9MB
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Filesize
288KB
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Filesize
6.9MB
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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
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Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
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Filesize
76KB