Analysis
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max time kernel
175s -
max time network
183s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
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submitted
26-10-2023 05:52
General
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Target
91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exe
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Size
1.7MB
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MD5
2519f369f426e4d2cdd88290d1c25d3c
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SHA1
e464001902893ab6aea89b8ccfc66f9eb1d45988
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SHA256
91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4
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SHA512
bedda8d51127c186946cdb3755f9bcc049a0efc308ed645de52d58cdffa8fad85778e4a77338f1c3d68bd2b725ff68e5829a4bba8879983f7380df350754d443
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SSDEEP
24576:4E6seIAzWNS0LSaN9EBrx+dbsOCK/91/oc1EDnbLmVrkfvDUdhu3z7L/40NM+Sf2:tKpCSrEdbsOn/4sEDnB3z7E0CzzK
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 2 IoCs
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Renames multiple (141) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Deletes backup catalog 3 TTPs 1 IoCs
Uses wbadmin.exe to inhibit system recovery.
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Modifies Windows Firewall 1 TTPs 2 IoCs
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Drops startup file 1 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) 4 IoCs
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Suspicious use of SetThreadContext 2 IoCs
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Drops file in Program Files directory 64 IoCs
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Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 51 IoCs
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Suspicious use of WriteProcessMemory 44 IoCs
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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.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exe"C:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exeC:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exe2⤵
- 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\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exe"C:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exeC:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exe4⤵
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C:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exeC:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exe4⤵
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C:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exeC:\Users\Admin\AppData\Local\Temp\91abe280381d0faf55b521f51d16d8aa022f0cc14b1310334d4fffc3474459d4.exe4⤵
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off4⤵
- Modifies Windows Firewall
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C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable4⤵
- Modifies Windows Firewall
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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⤵
- 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
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.2MB
MD5c56f0064890524e10bb89116129ed30f
SHA185f82b446fdd0ebd00872c301d562821e5d9f32d
SHA2563277923e5e25917ba8810cfc23668de028508439cd5fe8180636e951b742beca
SHA51208e87599ad93581556145d1449f8494435d586c68a148a2b7378c88a2fb7702559d6c91879f0475fb9827af8ab6e81186d79a7f15059f4b7edd87ccd0fe1feeb
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Filesize
1016B
MD54353288293ab8929e492327245a7ccb2
SHA189b365f2f5e14faaf17715e5764b60d344250d67
SHA25661954fc5184dd88a959f803ee98ca9af53eb0c942dbb00b98ba4f8a46081b587
SHA51248c07ca1b769cf02af6ec938aad8b5a03133e82a451bdff5a03bf4ba47cfd7add0ab28ee6622c22fb54e127472a7cf68dd7d05da15ec439cc18aed2ca76cd08a
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
-
Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
5.6MB
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Filesize
312KB
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Filesize
7.7MB
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Filesize
584KB
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Filesize
64KB
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Filesize
7.7MB
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Filesize
1.8MB
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Filesize
304KB
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Filesize
208KB
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Filesize
216KB
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Filesize
1.2MB
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Filesize
7.7MB
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Filesize
64KB
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Filesize
7.7MB
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Filesize
76KB