Analysis
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max time kernel
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max time network
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platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
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submitted
30-09-2022 08:00
General
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Target
992dad791a523f2c0a0b5a74c08e5573905f301d8891db0ed6e885face9ef0e2.exe
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Size
55KB
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MD5
ea0740178ed1d9c298816351d68ee859
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SHA1
bcf0db0e3ea2a96e776f49243d6c1c5080fcc364
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SHA256
992dad791a523f2c0a0b5a74c08e5573905f301d8891db0ed6e885face9ef0e2
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SHA512
ba1725eabf2d040a1e0d02b79f5501356ae9c0a0ac42a81a7fc70982cc837597431f59cce24673c13975c31c914ce77c51a937475b1b78b78cf611d394bdfbf2
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SSDEEP
1536:fNeRBl5PT/rx1mzwRMSTdLpJWaCN60YX/:fQRrmzwR5JEc
Malware Config
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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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\992dad791a523f2c0a0b5a74c08e5573905f301d8891db0ed6e885face9ef0e2.exe"C:\Users\Admin\AppData\Local\Temp\992dad791a523f2c0a0b5a74c08e5573905f301d8891db0ed6e885face9ef0e2.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\992dad791a523f2c0a0b5a74c08e5573905f301d8891db0ed6e885face9ef0e2.exe"C:\Users\Admin\AppData\Local\Temp\992dad791a523f2c0a0b5a74c08e5573905f301d8891db0ed6e885face9ef0e2.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\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
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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\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
MD5530760261e9ee8d83f75c6b4db7a5e31
SHA19e0209dd7d65734382960c59bc280271d4f3c6cd
SHA2560b84151c20e9bd0fccc8c293c874788fcc05ea6d926f01946c624aa97e956242
SHA51216ab20df92f2dcb7d71525b3e73008e6dc572d5ebe1a7e10bf391941d5de53ebdad0642cdf9af66a82aa4630dbcb6b3ba0ba001913b84fedd1cce2995986dcb3
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Filesize
5KB
MD5530760261e9ee8d83f75c6b4db7a5e31
SHA19e0209dd7d65734382960c59bc280271d4f3c6cd
SHA2560b84151c20e9bd0fccc8c293c874788fcc05ea6d926f01946c624aa97e956242
SHA51216ab20df92f2dcb7d71525b3e73008e6dc572d5ebe1a7e10bf391941d5de53ebdad0642cdf9af66a82aa4630dbcb6b3ba0ba001913b84fedd1cce2995986dcb3
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Filesize
5KB
MD5530760261e9ee8d83f75c6b4db7a5e31
SHA19e0209dd7d65734382960c59bc280271d4f3c6cd
SHA2560b84151c20e9bd0fccc8c293c874788fcc05ea6d926f01946c624aa97e956242
SHA51216ab20df92f2dcb7d71525b3e73008e6dc572d5ebe1a7e10bf391941d5de53ebdad0642cdf9af66a82aa4630dbcb6b3ba0ba001913b84fedd1cce2995986dcb3
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Filesize
8KB
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Filesize
8KB
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