Analysis
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max time kernel
150s -
max time network
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platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
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submitted
11-11-2022 08:27
General
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Target
b188674706de2125e487aadc14769e5e4c20f311a1abfd098441c4a8bc41ed27.exe
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Size
753KB
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MD5
4f1025c0661cc0fa578a52466fa65b71
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SHA1
591d9da3673498a3cf184637c0b83e62fa7e1e8c
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SHA256
b188674706de2125e487aadc14769e5e4c20f311a1abfd098441c4a8bc41ed27
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SHA512
9e75f94bccc8a78d2436455d58eab1fb4632b98351e0af5417a82d85a1ee541086331a1cd30611ec5782e24eb3fbf448eee5cbb605b05219131d997f1325a0a5
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SSDEEP
12288:jzKha/nj5OLpdNIrd4Dx5OLpdNIrd4Di:7FmXIrdCmXIrdf
Malware Config
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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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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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). 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 64 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\b188674706de2125e487aadc14769e5e4c20f311a1abfd098441c4a8bc41ed27.exe"C:\Users\Admin\AppData\Local\Temp\b188674706de2125e487aadc14769e5e4c20f311a1abfd098441c4a8bc41ed27.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\b188674706de2125e487aadc14769e5e4c20f311a1abfd098441c4a8bc41ed27.exe"C:\Users\Admin\AppData\Local\Temp\b188674706de2125e487aadc14769e5e4c20f311a1abfd098441c4a8bc41ed27.exe"2⤵
- 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\b188674706de2125e487aadc14769e5e4c20f311a1abfd098441c4a8bc41ed27.exe"C:\Users\Admin\AppData\Local\Temp\b188674706de2125e487aadc14769e5e4c20f311a1abfd098441c4a8bc41ed27.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\b188674706de2125e487aadc14769e5e4c20f311a1abfd098441c4a8bc41ed27.exe"C:\Users\Admin\AppData\Local\Temp\b188674706de2125e487aadc14769e5e4c20f311a1abfd098441c4a8bc41ed27.exe"4⤵
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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\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} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
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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\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 v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
5KB
MD5b72d1ab2c4beef1fc564fa15c21b4891
SHA1bfeb8abd11f0ca87c2794e756c98bfd14cd1aef5
SHA2565d2ec29f7caf92d798edbdcb94fe7dd3b4860d5090d03832876ec46eb10638eb
SHA512812c94942d45483a8023c45e1887dff20832c1daf6bb1a73e92970f1799834a98585f9c6631e6e2ec3d8cceb620f9ae338f55123f6aef79f993fa04c42654f29
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Filesize
5KB
MD5b72d1ab2c4beef1fc564fa15c21b4891
SHA1bfeb8abd11f0ca87c2794e756c98bfd14cd1aef5
SHA2565d2ec29f7caf92d798edbdcb94fe7dd3b4860d5090d03832876ec46eb10638eb
SHA512812c94942d45483a8023c45e1887dff20832c1daf6bb1a73e92970f1799834a98585f9c6631e6e2ec3d8cceb620f9ae338f55123f6aef79f993fa04c42654f29
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Filesize
5KB
MD5b72d1ab2c4beef1fc564fa15c21b4891
SHA1bfeb8abd11f0ca87c2794e756c98bfd14cd1aef5
SHA2565d2ec29f7caf92d798edbdcb94fe7dd3b4860d5090d03832876ec46eb10638eb
SHA512812c94942d45483a8023c45e1887dff20832c1daf6bb1a73e92970f1799834a98585f9c6631e6e2ec3d8cceb620f9ae338f55123f6aef79f993fa04c42654f29
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Filesize
776KB
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Filesize
76KB
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Filesize
776KB
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Filesize
8KB
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Filesize
76KB
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Filesize
8KB
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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
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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