Analysis
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max time kernel
150s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20231020-en -
resource tags
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submitted
26-10-2023 09:12
General
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Target
2519f369f426e4d2cdd88290d1c25d3c.exe
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Size
1.7MB
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MD5
2519f369f426e4d2cdd88290d1c25d3c
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SHA1
e464001902893ab6aea89b8ccfc66f9eb1d45988
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SHA256
91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4
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SHA512
bedda8d51127c186946cdb3755f9bcc049a0efc308ed645de52d58cdffa8fad85778e4a77338f1c3d68bd2b725ff68e5829a4bba8879983f7380df350754d443
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SSDEEP
24576:4E6seIAzWNS0LSaN9EBrx+dbsOCK/91/oc1EDnbLmVrkfvDUdhu3z7L/40NM+Sf2:tKpCSrEdbsOn/4sEDnB3z7E0CzzK
Malware Config
Extracted
C:\Users\Public\Desktop\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 (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\2519f369f426e4d2cdd88290d1c25d3c.exe"C:\Users\Admin\AppData\Local\Temp\2519f369f426e4d2cdd88290d1c25d3c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\2519f369f426e4d2cdd88290d1c25d3c.exeC:\Users\Admin\AppData\Local\Temp\2519f369f426e4d2cdd88290d1c25d3c.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\2519f369f426e4d2cdd88290d1c25d3c.exe"C:\Users\Admin\AppData\Local\Temp\2519f369f426e4d2cdd88290d1c25d3c.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\2519f369f426e4d2cdd88290d1c25d3c.exeC:\Users\Admin\AppData\Local\Temp\2519f369f426e4d2cdd88290d1c25d3c.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
3.6MB
MD564a99f8cb9a64d6f48ee03cbc84934a1
SHA1d0bb38f96b9efee331036d59c7ff81143fe58b9a
SHA256ba9f37bd3bebe65cebc7444d515db5ef0e235b92d02c7ad9e84dd1443e218ffd
SHA512595845945cfbcf812f75c1495b4e3c3ff87944da1c14630b71e97b9f6ffedec2aaba9df60445f70077196c3f46b82f5d815dea88c967016f28f3811cda6880dc
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Filesize
5KB
MD52c0f0eba2c193f0071ff68996ca94cdd
SHA1d9ab9cd1525362243dfaaf34430aa19980faa47f
SHA2568c79a6b52be3461ff965240b9d80798b303e795a3747c9623a0a9e26773a1ab0
SHA5125eac4257eb68afdc3491bd158f45bc94653e60bfd3e9ea4440798e32d41508d1d4be4a9b1fb458e0ca8c90d905a7541b44eeaa55e9ec5138da4ed6784b500793
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Filesize
5KB
MD52c0f0eba2c193f0071ff68996ca94cdd
SHA1d9ab9cd1525362243dfaaf34430aa19980faa47f
SHA2568c79a6b52be3461ff965240b9d80798b303e795a3747c9623a0a9e26773a1ab0
SHA5125eac4257eb68afdc3491bd158f45bc94653e60bfd3e9ea4440798e32d41508d1d4be4a9b1fb458e0ca8c90d905a7541b44eeaa55e9ec5138da4ed6784b500793
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Filesize
5KB
MD52c0f0eba2c193f0071ff68996ca94cdd
SHA1d9ab9cd1525362243dfaaf34430aa19980faa47f
SHA2568c79a6b52be3461ff965240b9d80798b303e795a3747c9623a0a9e26773a1ab0
SHA5125eac4257eb68afdc3491bd158f45bc94653e60bfd3e9ea4440798e32d41508d1d4be4a9b1fb458e0ca8c90d905a7541b44eeaa55e9ec5138da4ed6784b500793
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Filesize
5KB
MD52c0f0eba2c193f0071ff68996ca94cdd
SHA1d9ab9cd1525362243dfaaf34430aa19980faa47f
SHA2568c79a6b52be3461ff965240b9d80798b303e795a3747c9623a0a9e26773a1ab0
SHA5125eac4257eb68afdc3491bd158f45bc94653e60bfd3e9ea4440798e32d41508d1d4be4a9b1fb458e0ca8c90d905a7541b44eeaa55e9ec5138da4ed6784b500793
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Filesize
5KB
MD52c0f0eba2c193f0071ff68996ca94cdd
SHA1d9ab9cd1525362243dfaaf34430aa19980faa47f
SHA2568c79a6b52be3461ff965240b9d80798b303e795a3747c9623a0a9e26773a1ab0
SHA5125eac4257eb68afdc3491bd158f45bc94653e60bfd3e9ea4440798e32d41508d1d4be4a9b1fb458e0ca8c90d905a7541b44eeaa55e9ec5138da4ed6784b500793
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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
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Filesize
76KB
-
Filesize
76KB
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Filesize
76KB
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Filesize
4KB
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Filesize
76KB
-
Filesize
76KB
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Filesize
76KB
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Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
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Filesize
76KB
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Filesize
76KB
-
Filesize
76KB
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Filesize
76KB
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Filesize
6.9MB
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Filesize
216KB
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Filesize
6.9MB
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Filesize
256KB
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Filesize
208KB
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Filesize
1.8MB
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Filesize
1.2MB
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Filesize
312KB
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Filesize
304KB
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Filesize
6.9MB
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Filesize
1.8MB
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Filesize
6.9MB
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Filesize
256KB
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Filesize
76KB
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Filesize
4KB