Analysis
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max time kernel
150s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20230831-en -
resource tags
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submitted
15-09-2023 06:58
General
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Target
af682568d545d56f405e1e476421467c.exe
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Size
630KB
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MD5
af682568d545d56f405e1e476421467c
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SHA1
be54c56243fd37e288825bd1c01880fcc487d322
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SHA256
aedbddbf7494baaaf759a720d9cd17540d3c171b9cc52a02e0ef9a592bd9cd63
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SHA512
e9f4a7d6491f60b2ad2e3844813451838c4d548af2400713007cb8d0a768fde2edaea7b18404afcfc6c3d6fcfea27fe7ed521a7a5cefedc4a64b55ac5fda9cb3
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SSDEEP
12288:LxAF9CSqpcfzoiBYrJyc/eJDVAb76UP66iK:6F9C6zXOrJEJDA75d
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\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 (481) 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 62 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\af682568d545d56f405e1e476421467c.exe"C:\Users\Admin\AppData\Local\Temp\af682568d545d56f405e1e476421467c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\af682568d545d56f405e1e476421467c.exeC:\Users\Admin\AppData\Local\Temp\af682568d545d56f405e1e476421467c.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\af682568d545d56f405e1e476421467c.exe"C:\Users\Admin\AppData\Local\Temp\af682568d545d56f405e1e476421467c.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\af682568d545d56f405e1e476421467c.exeC:\Users\Admin\AppData\Local\Temp\af682568d545d56f405e1e476421467c.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
2.9MB
MD580f4f97d91deb04cb71d067505588c59
SHA1d50e263b96f18a9c00a727d7657762ada1b2bbf7
SHA256052e8a60790a37d650c4b48bd86fe95f4e9c8f165279e7db59c56d2f22693241
SHA51209236c887e7991eae7fb43861e4985e376846310b5440e59a428a5b3a7574796cb6c173f0df34cddbac3d05c54d8312c68c10bfb4ea0ac2cd73346826eb0a82a
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Filesize
927B
MD5ff27e87d4bf1330435001e57e8244d60
SHA1b22264ed3cd4d35f8236278edd2512c3b7ecb355
SHA2567e9adf70ba438f8a38feac34e1b25bb4261fa506d00361ea7e5cde784651474e
SHA512d678aa2b42032ea0d811f9783abff7c94a6d674bd3dee74df706b7f95da7e51d84207320ea36226da4f8651e6ec618ea12d99d2d6d371bd1e98395518b8956e0
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Filesize
5KB
MD50ba1f938ee1ed8fe2e6837b2cc030305
SHA1b25664fb8201f18bacbcbd5677e6355115f6c507
SHA256eae5b76c4c49ad7e6917ff0214059e4e4dbf4fdd31f5176b54c441486cffe28f
SHA512384173cb519d9fdb252943a7a2b5ea8e7c4fecbd3cfcfc43fc2f6eb09d3fe259c63b00757b3c6984d31b24f3e208afdb1f74159af09c0697ec84fbea2d14762b
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Filesize
5KB
MD50ba1f938ee1ed8fe2e6837b2cc030305
SHA1b25664fb8201f18bacbcbd5677e6355115f6c507
SHA256eae5b76c4c49ad7e6917ff0214059e4e4dbf4fdd31f5176b54c441486cffe28f
SHA512384173cb519d9fdb252943a7a2b5ea8e7c4fecbd3cfcfc43fc2f6eb09d3fe259c63b00757b3c6984d31b24f3e208afdb1f74159af09c0697ec84fbea2d14762b
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Filesize
5KB
MD50ba1f938ee1ed8fe2e6837b2cc030305
SHA1b25664fb8201f18bacbcbd5677e6355115f6c507
SHA256eae5b76c4c49ad7e6917ff0214059e4e4dbf4fdd31f5176b54c441486cffe28f
SHA512384173cb519d9fdb252943a7a2b5ea8e7c4fecbd3cfcfc43fc2f6eb09d3fe259c63b00757b3c6984d31b24f3e208afdb1f74159af09c0697ec84fbea2d14762b
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Filesize
5KB
MD50ba1f938ee1ed8fe2e6837b2cc030305
SHA1b25664fb8201f18bacbcbd5677e6355115f6c507
SHA256eae5b76c4c49ad7e6917ff0214059e4e4dbf4fdd31f5176b54c441486cffe28f
SHA512384173cb519d9fdb252943a7a2b5ea8e7c4fecbd3cfcfc43fc2f6eb09d3fe259c63b00757b3c6984d31b24f3e208afdb1f74159af09c0697ec84fbea2d14762b
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Filesize
5KB
MD50ba1f938ee1ed8fe2e6837b2cc030305
SHA1b25664fb8201f18bacbcbd5677e6355115f6c507
SHA256eae5b76c4c49ad7e6917ff0214059e4e4dbf4fdd31f5176b54c441486cffe28f
SHA512384173cb519d9fdb252943a7a2b5ea8e7c4fecbd3cfcfc43fc2f6eb09d3fe259c63b00757b3c6984d31b24f3e208afdb1f74159af09c0697ec84fbea2d14762b
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Filesize
7.7MB
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Filesize
64KB
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Filesize
7.7MB
-
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
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
7.7MB
-
Filesize
208KB
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Filesize
656KB
-
Filesize
304KB
-
Filesize
280KB
-
Filesize
352KB
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Filesize
64KB
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Filesize
5.6MB
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Filesize
7.7MB