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
27-01-2023 14:23
General
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Target
b54d6dc708eade0818fcf91e59c7dbe37267abbe43a1672fb5f1c126e021ad7d.exe
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Size
56KB
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MD5
dc09c3148ba09028fe0a43efd287917b
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SHA1
fea5a0668ddd1a7278c934276c2efada3ee2287a
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SHA256
b54d6dc708eade0818fcf91e59c7dbe37267abbe43a1672fb5f1c126e021ad7d
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SHA512
ee411ef051eb03bdb1f9bbddda987ec08bc80ab0c431b78abb52926794530db29e4a01ccbb325c15225d530e579b8f5678a948a378ebf70e8aa071d528505c36
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SSDEEP
1536:sNeRBl5PT/rx1mzwRMSTdLpJjYizrtZF:sQRrmzwR5J9zrZ
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 1 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\b54d6dc708eade0818fcf91e59c7dbe37267abbe43a1672fb5f1c126e021ad7d.exe"C:\Users\Admin\AppData\Local\Temp\b54d6dc708eade0818fcf91e59c7dbe37267abbe43a1672fb5f1c126e021ad7d.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\b54d6dc708eade0818fcf91e59c7dbe37267abbe43a1672fb5f1c126e021ad7d.exe"C:\Users\Admin\AppData\Local\Temp\b54d6dc708eade0818fcf91e59c7dbe37267abbe43a1672fb5f1c126e021ad7d.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\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\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\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
MD537269b498ffe3d29c87d86719eab4469
SHA1d1a3ce6a754a734ff4f00e936733570520760502
SHA256e20dc7ef216e5563bc1643f5c98f2a391c81594e0fc17a9023d534972fad59c1
SHA5127b80c3eadbab8acb99789cae189dbe2df2019a5778b64c3eb9e2da164bab29d1be2f6d7f0e75b9f867a31492abf2ff9f3c9b5e6f06d284fb9bdd2d6effd4d24d
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Filesize
5KB
MD537269b498ffe3d29c87d86719eab4469
SHA1d1a3ce6a754a734ff4f00e936733570520760502
SHA256e20dc7ef216e5563bc1643f5c98f2a391c81594e0fc17a9023d534972fad59c1
SHA5127b80c3eadbab8acb99789cae189dbe2df2019a5778b64c3eb9e2da164bab29d1be2f6d7f0e75b9f867a31492abf2ff9f3c9b5e6f06d284fb9bdd2d6effd4d24d
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Filesize
5KB
MD537269b498ffe3d29c87d86719eab4469
SHA1d1a3ce6a754a734ff4f00e936733570520760502
SHA256e20dc7ef216e5563bc1643f5c98f2a391c81594e0fc17a9023d534972fad59c1
SHA5127b80c3eadbab8acb99789cae189dbe2df2019a5778b64c3eb9e2da164bab29d1be2f6d7f0e75b9f867a31492abf2ff9f3c9b5e6f06d284fb9bdd2d6effd4d24d
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Filesize
8KB
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Filesize
8KB
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