Analysis
-
max time kernel
150s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
-
submitted
07-07-2023 05:59
General
-
Target
518544e56e8ccee401ffa1b0a01a10ce23e49ec21ec441c6c7c3951b01c1b19c.exe
-
Size
281KB
-
MD5
2809e15a3a54484e042fe65fffd17409
-
SHA1
4a8f0331abaf8f629b3c8220f0d55339cfa30223
-
SHA256
518544e56e8ccee401ffa1b0a01a10ce23e49ec21ec441c6c7c3951b01c1b19c
-
SHA512
698e16fd67861377e2ccaace4d0e1a619a8b7c68e8aefc4090e9d1cbbcdfb8d8aede76f9e63f81479f5a035e8008699a4d7175da6248e6e49eb7c81b3dba30c3
-
SSDEEP
3072:D5IwIMZKkczttW5ivhjqKO1I9Goh6F4mAqeormMkpCWlunhNGA5yjszVIEe9:NIMsztZZ+KQqGo5QfmLpCoun6W
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\users\public\desktop\info.hta
Signatures
-
Phobos
Phobos ransomware appeared at the beginning of 2019.
-
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Modifies boot configuration data using bcdedit 1 TTPs 4 IoCs
-
Renames multiple (483) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Deletes backup catalog 3 TTPs 2 IoCs
Uses wbadmin.exe to inhibit system recovery.
-
Modifies Windows Firewall 1 TTPs 2 IoCs
-
Modifies extensions of user files 3 IoCs
Ransomware generally changes the extension on encrypted files.
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
-
Drops startup file 3 IoCs
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Adds Run key to start application 2 TTPs 2 IoCs
-
Drops desktop.ini file(s) 64 IoCs
-
Drops file in Program Files directory 64 IoCs
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Program crash 1 IoCs
-
Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
-
Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
-
Modifies registry class 1 IoCs
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
-
Suspicious use of AdjustPrivilegeToken 64 IoCs
-
Suspicious use of WriteProcessMemory 42 IoCs
-
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
-
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\518544e56e8ccee401ffa1b0a01a10ce23e49ec21ec441c6c7c3951b01c1b19c.exe"C:\Users\Admin\AppData\Local\Temp\518544e56e8ccee401ffa1b0a01a10ce23e49ec21ec441c6c7c3951b01c1b19c.exe"1⤵
- Modifies extensions of user files
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\518544e56e8ccee401ffa1b0a01a10ce23e49ec21ec441c6c7c3951b01c1b19c.exe"C:\Users\Admin\AppData\Local\Temp\518544e56e8ccee401ffa1b0a01a10ce23e49ec21ec441c6c7c3951b01c1b19c.exe"2⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 4643⤵
- Program crash
-
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off3⤵
- Modifies Windows Firewall
-
C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable3⤵
- Modifies Windows Firewall
-
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
-
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
-
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
-
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
-
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
-
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
-
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
-
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
-
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
-
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2384 -ip 23841⤵
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵
-
C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
3.2MB
MD5eca201bc8244abd8ec9678a7d27b8fd0
SHA1832977aae5c1a0a937c5c654fd446e48d1ae738d
SHA256ee322e7fd7d4a19cbc9ff1a8278d0fa5db40a69f9807f27ae1ed70b621c80219
SHA5121960c5af3d8046cbf3847185cbc2ba6c620b9c363c032badb743b20539251c3ab45b89bfa46da35c014393925c0ab2b81225ea30b1f2321948a1a73b01cf28bd
-
Filesize
5KB
MD5ef63195d3e2b3052eee15a58d1302bfc
SHA156196c450ff4a52aabe82e2ca4b310e290836d4c
SHA256c7cb3b77c2e676276724f2fad0b3a4f4e32195d9d9dfdd6401d26d39fa3adbc3
SHA512c0539fc36bb31dfbd10bd772ecf26a005f9dedf52183e3d4e4f17ef47f2c80977147a14a9f086c599f950295df60d3ab729d7a200bf4ddfd1e10c9a8e47cd44e
-
Filesize
5KB
MD5ef63195d3e2b3052eee15a58d1302bfc
SHA156196c450ff4a52aabe82e2ca4b310e290836d4c
SHA256c7cb3b77c2e676276724f2fad0b3a4f4e32195d9d9dfdd6401d26d39fa3adbc3
SHA512c0539fc36bb31dfbd10bd772ecf26a005f9dedf52183e3d4e4f17ef47f2c80977147a14a9f086c599f950295df60d3ab729d7a200bf4ddfd1e10c9a8e47cd44e
-
Filesize
5KB
MD5ef63195d3e2b3052eee15a58d1302bfc
SHA156196c450ff4a52aabe82e2ca4b310e290836d4c
SHA256c7cb3b77c2e676276724f2fad0b3a4f4e32195d9d9dfdd6401d26d39fa3adbc3
SHA512c0539fc36bb31dfbd10bd772ecf26a005f9dedf52183e3d4e4f17ef47f2c80977147a14a9f086c599f950295df60d3ab729d7a200bf4ddfd1e10c9a8e47cd44e
-
Filesize
5KB
MD5ef63195d3e2b3052eee15a58d1302bfc
SHA156196c450ff4a52aabe82e2ca4b310e290836d4c
SHA256c7cb3b77c2e676276724f2fad0b3a4f4e32195d9d9dfdd6401d26d39fa3adbc3
SHA512c0539fc36bb31dfbd10bd772ecf26a005f9dedf52183e3d4e4f17ef47f2c80977147a14a9f086c599f950295df60d3ab729d7a200bf4ddfd1e10c9a8e47cd44e
-
Filesize
5KB
MD5ef63195d3e2b3052eee15a58d1302bfc
SHA156196c450ff4a52aabe82e2ca4b310e290836d4c
SHA256c7cb3b77c2e676276724f2fad0b3a4f4e32195d9d9dfdd6401d26d39fa3adbc3
SHA512c0539fc36bb31dfbd10bd772ecf26a005f9dedf52183e3d4e4f17ef47f2c80977147a14a9f086c599f950295df60d3ab729d7a200bf4ddfd1e10c9a8e47cd44e
-
Filesize
5.2MB
-
Filesize
5.2MB
-
Filesize
5.2MB
-
Filesize
5.2MB
-
Filesize
5.2MB
-
Filesize
5.2MB
-
Filesize
84KB
-
Filesize
60KB
-
Filesize
5.2MB