Analysis
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max time kernel
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max time network
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platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
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submitted
03-11-2022 07:38
General
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Target
cd89fd5bf3049fad64718c190ae014b4c9c0d141e3550d63008c1c5c71d50bd7.exe
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Size
55KB
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MD5
fd0ef924c1edc067cd2298024a7057b0
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SHA1
0a32d7600869f37f0fbe2a5c996cda5111d4a4d1
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SHA256
cd89fd5bf3049fad64718c190ae014b4c9c0d141e3550d63008c1c5c71d50bd7
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SHA512
275efb2d22ceaed29c4c4563782f648663ea752a6b08d4472ba12d29dc76c57b2120c3a5984d08f5a0ebdd3abf68e6ea8af1325ff9eb24830c43c8c489ad44c0
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SSDEEP
1536:HNeRBl5PT/rx1mzwRMSTdLpJ47kmvBMRM:HQRrmzwR5JWk2+
Malware Config
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 3 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\cd89fd5bf3049fad64718c190ae014b4c9c0d141e3550d63008c1c5c71d50bd7.exe"C:\Users\Admin\AppData\Local\Temp\cd89fd5bf3049fad64718c190ae014b4c9c0d141e3550d63008c1c5c71d50bd7.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\cd89fd5bf3049fad64718c190ae014b4c9c0d141e3550d63008c1c5c71d50bd7.exe"C:\Users\Admin\AppData\Local\Temp\cd89fd5bf3049fad64718c190ae014b4c9c0d141e3550d63008c1c5c71d50bd7.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
4KB
MD5825afaa621955d99bc8b6e2438eba90b
SHA1b789453cd94a37997582906f2f570decd482064e
SHA2561972bad3544136af34460ee0fe4a8f0b1219835092434c94f63e0172034f1e02
SHA51262eb02e39810b78d96a723f2dca5f5bdec08a621311d50bc5cdb02204d2b7cc2d19ed1f23349f354ddbeb784f85d502d2f197ed9c170cc946205f51d3608c85e
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Filesize
4KB
MD5825afaa621955d99bc8b6e2438eba90b
SHA1b789453cd94a37997582906f2f570decd482064e
SHA2561972bad3544136af34460ee0fe4a8f0b1219835092434c94f63e0172034f1e02
SHA51262eb02e39810b78d96a723f2dca5f5bdec08a621311d50bc5cdb02204d2b7cc2d19ed1f23349f354ddbeb784f85d502d2f197ed9c170cc946205f51d3608c85e
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Filesize
4KB
MD5825afaa621955d99bc8b6e2438eba90b
SHA1b789453cd94a37997582906f2f570decd482064e
SHA2561972bad3544136af34460ee0fe4a8f0b1219835092434c94f63e0172034f1e02
SHA51262eb02e39810b78d96a723f2dca5f5bdec08a621311d50bc5cdb02204d2b7cc2d19ed1f23349f354ddbeb784f85d502d2f197ed9c170cc946205f51d3608c85e
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Filesize
8KB
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Filesize
8KB
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