Analysis
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max time kernel
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max time network
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platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
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submitted
27-12-2022 10:51
General
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Target
54f377a78e1533d59ca1d6b0f7fc92bcdd9987586a002b166368a6d6d5ac6baa.exe
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Size
56KB
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MD5
377aa2486224f59074c39512f6d5bf08
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SHA1
5a881b873f82e94634377b65b8126c603e4da7de
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SHA256
54f377a78e1533d59ca1d6b0f7fc92bcdd9987586a002b166368a6d6d5ac6baa
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SHA512
e3c8a09037fe257b4a08342ae1d3e4089a4b5f42276582fc13f239e036b00d9f5a22aa0f2108608e3d11a49003dda36de6e4a5a1cd540527ec7a69adaca9dcdd
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SSDEEP
1536:6NeRBl5PT/rx1mzwRMSTdLpJcAkeMuko06M:6QRrmzwR5J3w0M
Malware Config
Extracted
C:\Users\Admin\Desktop\info.hta
https://tox.chat/
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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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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Modifies extensions of user files 2 IoCs
Ransomware generally changes the extension on encrypted files.
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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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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). Likely ransomware behaviour.
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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 3 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 60 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\54f377a78e1533d59ca1d6b0f7fc92bcdd9987586a002b166368a6d6d5ac6baa.exe"C:\Users\Admin\AppData\Local\Temp\54f377a78e1533d59ca1d6b0f7fc92bcdd9987586a002b166368a6d6d5ac6baa.exe"1⤵
- Modifies extensions of user files
- 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\54f377a78e1533d59ca1d6b0f7fc92bcdd9987586a002b166368a6d6d5ac6baa.exe"C:\Users\Admin\AppData\Local\Temp\54f377a78e1533d59ca1d6b0f7fc92bcdd9987586a002b166368a6d6d5ac6baa.exe"2⤵
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off3⤵
- Modifies Windows Firewall
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C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable3⤵
- Modifies Windows Firewall
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta"2⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta"2⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta"2⤵
- Modifies Internet Explorer settings
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- 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 v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
5KB
MD5da372f4d1c061734ef95e9dfe3ebc209
SHA15f8e34f630f91f1e92ea02d02f44f63962dece1c
SHA2569d3fdf26af33cad7860a03abb613626f4248e5d2c07176a0fb4073d461072645
SHA5127db8f334eb0674170943b78435372dd72cd85b9fb89af21b0de7f0c8ce1a8cca1cf42c950f1692868d6736894b463acbb3efb0cfee46a949f05d8efbc75d3ed4
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Filesize
5KB
MD5da372f4d1c061734ef95e9dfe3ebc209
SHA15f8e34f630f91f1e92ea02d02f44f63962dece1c
SHA2569d3fdf26af33cad7860a03abb613626f4248e5d2c07176a0fb4073d461072645
SHA5127db8f334eb0674170943b78435372dd72cd85b9fb89af21b0de7f0c8ce1a8cca1cf42c950f1692868d6736894b463acbb3efb0cfee46a949f05d8efbc75d3ed4
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Filesize
5KB
MD5da372f4d1c061734ef95e9dfe3ebc209
SHA15f8e34f630f91f1e92ea02d02f44f63962dece1c
SHA2569d3fdf26af33cad7860a03abb613626f4248e5d2c07176a0fb4073d461072645
SHA5127db8f334eb0674170943b78435372dd72cd85b9fb89af21b0de7f0c8ce1a8cca1cf42c950f1692868d6736894b463acbb3efb0cfee46a949f05d8efbc75d3ed4
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Filesize
8KB
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Filesize
8KB