Analysis

  • max time kernel
    150s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-10-2022 11:41

General

  • Target

    94e5a07113b228991a294f9b972d2727695ecd68520f56741ae4ad649d5d529b.exe

  • Size

    57KB

  • MD5

    79c5bc57a1dd023ac5b372c0ca815cb5

  • SHA1

    fab561d2b12cabc999b927f07cbf0de7afc07d7f

  • SHA256

    94e5a07113b228991a294f9b972d2727695ecd68520f56741ae4ad649d5d529b

  • SHA512

    90effdf8f6dc1b9d631aafadcd292287399455e53c76cdec12c0aeaf1bb324dc544b0a3b27ae2583f5567bf1988e66e59b57f858ddac88ec8a91ed6ec04674bd

  • SSDEEP

    1536:wNeRBl5PT/rx1mzwRMSTdLpJRt6NeIJYs7:wQRrmzwR5JCNeST

Malware Config

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 2 IoCs
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Modifies Windows Firewall 1 TTPs 2 IoCs
  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

  • 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
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\94e5a07113b228991a294f9b972d2727695ecd68520f56741ae4ad649d5d529b.exe
    "C:\Users\Admin\AppData\Local\Temp\94e5a07113b228991a294f9b972d2727695ecd68520f56741ae4ad649d5d529b.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
    PID:1576
    • C:\Users\Admin\AppData\Local\Temp\94e5a07113b228991a294f9b972d2727695ecd68520f56741ae4ad649d5d529b.exe
      "C:\Users\Admin\AppData\Local\Temp\94e5a07113b228991a294f9b972d2727695ecd68520f56741ae4ad649d5d529b.exe"
      2⤵
        PID:1160
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:880
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2040
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:844
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:936
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:1664
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:1916
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1708
        • C:\Windows\system32\netsh.exe
          netsh advfirewall set currentprofile state off
          3⤵
          • Modifies Windows Firewall
          PID:1180
        • C:\Windows\system32\netsh.exe
          netsh firewall set opmode mode=disable
          3⤵
          • Modifies Windows Firewall
          PID:1028
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:320
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:288
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:1572
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
          PID:796

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/844-63-0x0000000000000000-mapping.dmp

        • memory/880-56-0x0000000000000000-mapping.dmp

        • memory/936-64-0x0000000000000000-mapping.dmp

        • memory/1028-61-0x0000000000000000-mapping.dmp

        • memory/1180-58-0x0000000000000000-mapping.dmp

        • memory/1180-60-0x000007FEFBC61000-0x000007FEFBC63000-memory.dmp

          Filesize

          8KB

        • memory/1576-54-0x0000000075B11000-0x0000000075B13000-memory.dmp

          Filesize

          8KB

        • memory/1664-65-0x0000000000000000-mapping.dmp

        • memory/1708-57-0x0000000000000000-mapping.dmp

        • memory/1916-66-0x0000000000000000-mapping.dmp

        • memory/2040-59-0x0000000000000000-mapping.dmp