Analysis
-
max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
-
submitted
14-10-2024 18:25
General
-
Target
91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exe
-
Size
1.7MB
-
MD5
2519f369f426e4d2cdd88290d1c25d3c
-
SHA1
e464001902893ab6aea89b8ccfc66f9eb1d45988
-
SHA256
91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4
-
SHA512
bedda8d51127c186946cdb3755f9bcc049a0efc308ed645de52d58cdffa8fad85778e4a77338f1c3d68bd2b725ff68e5829a4bba8879983f7380df350754d443
-
SSDEEP
24576:4E6seIAzWNS0LSaN9EBrx+dbsOCK/91/oc1EDnbLmVrkfvDUdhu3z7L/40NM+Sf2:tKpCSrEdbsOn/4sEDnB3z7E0CzzK
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Signatures
-
Phobos
Phobos ransomware appeared at the beginning of 2019.
-
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Modifies boot configuration data using bcdedit 1 TTPs 4 IoCs
-
Renames multiple (514) 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 2 TTPs 2 IoCs
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
-
Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
-
Drops startup file 3 IoCs
-
Reads user/profile data of web browsers 3 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
-
Suspicious use of SetThreadContext 2 IoCs
-
Drops file in Program Files directory 64 IoCs
-
Browser Information Discovery 1 TTPs
Enumerate browser information.
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
-
System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
-
Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
-
Interacts with shadow copies 3 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 62 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\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exe"C:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exeC:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exe2⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exe"C:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exe"3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exeC:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exe4⤵
-
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
-
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
-
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
-
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off4⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
-
C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable4⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
-
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}3⤵
- System Location Discovery: System Language Discovery
-
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}3⤵
- System Location Discovery: System Language Discovery
-
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}3⤵
- System Location Discovery: System Language Discovery
-
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}3⤵
- System Location Discovery: System Language Discovery
-
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
-
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
-
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
-
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 v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Direct Volume Access
1Impair Defenses
1Disable or Modify System Firewall
1Indicator Removal
3File Deletion
3Modify Registry
1Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
2.7MB
MD5d5bca6c2a1603edb44d29ce87a4784d0
SHA102413b7028577da599a51ab36e610f0d8dc491d9
SHA25665c7755bc71e66fb1b7f114adcf75c5ab0f7b97e76afa6f56998338c77322217
SHA512017bc6e853f9f80d449974bc839856b64c092ffaadbcdffe9b83ff2c7d2e3ebcb5ec47d2174e0e5792fd67daeb9287c7915c2da1065e4735ae6b272b950e1680
-
Filesize
1016B
MD54353288293ab8929e492327245a7ccb2
SHA189b365f2f5e14faaf17715e5764b60d344250d67
SHA25661954fc5184dd88a959f803ee98ca9af53eb0c942dbb00b98ba4f8a46081b587
SHA51248c07ca1b769cf02af6ec938aad8b5a03133e82a451bdff5a03bf4ba47cfd7add0ab28ee6622c22fb54e127472a7cf68dd7d05da15ec439cc18aed2ca76cd08a
-
Filesize
5KB
MD556086e376017559aecdc778c3db1632e
SHA1ac92b32290e5000215114009bd18c7461edf8086
SHA2567c9980b669b4ed48e1183df89211fb220f23c00669845f5399d1bd5ab9fab952
SHA512b2d4f9d8a8bb35c9c572efa7ec5d66171bae37cc76e4b2812b4d273eb29d3c0d13cb5af7ee85745ac89a75e2f566fb44294982287dfd14e6a1e36a9c6aaf757d
-
Filesize
4KB
-
Filesize
7.7MB
-
Filesize
7.7MB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
584KB
-
Filesize
208KB
-
Filesize
4KB
-
Filesize
7.7MB
-
Filesize
1.2MB
-
Filesize
312KB
-
Filesize
216KB
-
Filesize
7.7MB
-
Filesize
5.6MB
-
Filesize
304KB
-
Filesize
1.8MB
-
Filesize
76KB