Analysis
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max time kernel
150s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
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submitted
17-09-2023 09:15
General
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Target
8f60d17bbaefd66fe94d34ea3262a1e94b0f8f0702c437d19d3e292c72f1cedc_JC.exe
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Size
874KB
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MD5
0abe93aa0528480a732e292b655caafc
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SHA1
8662da2642d79c6ccf8ccdcd833a20be9cf155a1
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SHA256
8f60d17bbaefd66fe94d34ea3262a1e94b0f8f0702c437d19d3e292c72f1cedc
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SHA512
7cfad76517f23403005dba5f3bf49f9ea2710aa3f1569c0b909ef929ca79a729c2844b7bf0648dd5e55463e1d5b3d53ebec16c6b2a17621e9bdabd21126bb20e
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SSDEEP
24576:gZXb7RwGQLDuare8OsKkZBr5tPB6VvpYkDnpA6:gXc6INBrbPBypNpA
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 (313) 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\8f60d17bbaefd66fe94d34ea3262a1e94b0f8f0702c437d19d3e292c72f1cedc_JC.exe"C:\Users\Admin\AppData\Local\Temp\8f60d17bbaefd66fe94d34ea3262a1e94b0f8f0702c437d19d3e292c72f1cedc_JC.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\8f60d17bbaefd66fe94d34ea3262a1e94b0f8f0702c437d19d3e292c72f1cedc_JC.exeC:\Users\Admin\AppData\Local\Temp\8f60d17bbaefd66fe94d34ea3262a1e94b0f8f0702c437d19d3e292c72f1cedc_JC.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\8f60d17bbaefd66fe94d34ea3262a1e94b0f8f0702c437d19d3e292c72f1cedc_JC.exe"C:\Users\Admin\AppData\Local\Temp\8f60d17bbaefd66fe94d34ea3262a1e94b0f8f0702c437d19d3e292c72f1cedc_JC.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\8f60d17bbaefd66fe94d34ea3262a1e94b0f8f0702c437d19d3e292c72f1cedc_JC.exeC:\Users\Admin\AppData\Local\Temp\8f60d17bbaefd66fe94d34ea3262a1e94b0f8f0702c437d19d3e292c72f1cedc_JC.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
MD50fdda53eb75da98a985992c4981e367a
SHA119838aee1be413bcdef65468ab40039b031ff00f
SHA256e0048fda5c8481d1fbee3087b9e574651dca8e95828380e3c6af366201979cda
SHA51203c24e58ca0df3790ab82e81d2dd370d1a2d95c5560dce4795970c1ca873d864df353aeff188be68ad54152abc2c2412de6789ca6fbb14014c8565b21d822af0
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Filesize
5KB
MD5709c09eff3846a3716135abf95511d17
SHA18b7184e9132675d0ebd222a1413fc85ac3eb08f8
SHA256d2887bd38c4c81c33ce3e9405a789852e8622bd201f3d65861b5218897bd95c6
SHA5127943a0bac3dffe22678b10afa8167fbf7c243b70f652e0c671a98bd6c38ff3d950afc2b1a9bd2cd0aaadbfad0ade8fb32eaddae86cd91bd78b3358cb81d535e7
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Filesize
5KB
MD5709c09eff3846a3716135abf95511d17
SHA18b7184e9132675d0ebd222a1413fc85ac3eb08f8
SHA256d2887bd38c4c81c33ce3e9405a789852e8622bd201f3d65861b5218897bd95c6
SHA5127943a0bac3dffe22678b10afa8167fbf7c243b70f652e0c671a98bd6c38ff3d950afc2b1a9bd2cd0aaadbfad0ade8fb32eaddae86cd91bd78b3358cb81d535e7
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Filesize
5KB
MD5709c09eff3846a3716135abf95511d17
SHA18b7184e9132675d0ebd222a1413fc85ac3eb08f8
SHA256d2887bd38c4c81c33ce3e9405a789852e8622bd201f3d65861b5218897bd95c6
SHA5127943a0bac3dffe22678b10afa8167fbf7c243b70f652e0c671a98bd6c38ff3d950afc2b1a9bd2cd0aaadbfad0ade8fb32eaddae86cd91bd78b3358cb81d535e7
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Filesize
5KB
MD5709c09eff3846a3716135abf95511d17
SHA18b7184e9132675d0ebd222a1413fc85ac3eb08f8
SHA256d2887bd38c4c81c33ce3e9405a789852e8622bd201f3d65861b5218897bd95c6
SHA5127943a0bac3dffe22678b10afa8167fbf7c243b70f652e0c671a98bd6c38ff3d950afc2b1a9bd2cd0aaadbfad0ade8fb32eaddae86cd91bd78b3358cb81d535e7
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Filesize
5KB
MD5709c09eff3846a3716135abf95511d17
SHA18b7184e9132675d0ebd222a1413fc85ac3eb08f8
SHA256d2887bd38c4c81c33ce3e9405a789852e8622bd201f3d65861b5218897bd95c6
SHA5127943a0bac3dffe22678b10afa8167fbf7c243b70f652e0c671a98bd6c38ff3d950afc2b1a9bd2cd0aaadbfad0ade8fb32eaddae86cd91bd78b3358cb81d535e7
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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
76KB
-
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
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Filesize
6.9MB
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Filesize
896KB
-
Filesize
280KB
-
Filesize
256KB
-
Filesize
208KB
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Filesize
304KB
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Filesize
6.9MB
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Filesize
896KB
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Filesize
6.9MB
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Filesize
256KB
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Filesize
6.9MB
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Filesize
4KB
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Filesize
76KB