Analysis

  • max time kernel
    151s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    09-11-2022 12:35

General

  • Target

    8710ad8fb2938326655335455987aa17961b2496a345a7ed9f4bbfcb278212bc.exe

  • Size

    62KB

  • MD5

    ab7b66ee5385cb473b9c15db3e239692

  • SHA1

    5875f07b7b8174284ca15e4d5f53942e0d736024

  • SHA256

    8710ad8fb2938326655335455987aa17961b2496a345a7ed9f4bbfcb278212bc

  • SHA512

    1a9139af13dacb7cc0022b1216d725e39cfe3668384caf6942705bd1cad263368c4b305f7ccd649cd9bee3be5817029fd410bd02deff34c6b73d8159f2aae280

  • SSDEEP

    1536:XNeRBl5PT/rx1mzwRMSTdLpJil7Qi9TMk:XQRrmzwR5J67Qi9TMk

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
  • Drops startup file 1 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) 3 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\8710ad8fb2938326655335455987aa17961b2496a345a7ed9f4bbfcb278212bc.exe
    "C:\Users\Admin\AppData\Local\Temp\8710ad8fb2938326655335455987aa17961b2496a345a7ed9f4bbfcb278212bc.exe"
    1⤵
    • 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:1104
    • C:\Users\Admin\AppData\Local\Temp\8710ad8fb2938326655335455987aa17961b2496a345a7ed9f4bbfcb278212bc.exe
      "C:\Users\Admin\AppData\Local\Temp\8710ad8fb2938326655335455987aa17961b2496a345a7ed9f4bbfcb278212bc.exe"
      2⤵
        PID:968
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1608
        • C:\Windows\system32\netsh.exe
          netsh advfirewall set currentprofile state off
          3⤵
          • Modifies Windows Firewall
          PID:1512
        • C:\Windows\system32\netsh.exe
          netsh firewall set opmode mode=disable
          3⤵
          • Modifies Windows Firewall
          PID:1396
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:648
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:800
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1548
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:1264
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:1996
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:2016
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1580
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1956
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:520
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
          PID:944

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/648-57-0x0000000000000000-mapping.dmp

        • memory/800-58-0x0000000000000000-mapping.dmp

        • memory/1104-54-0x0000000075BB1000-0x0000000075BB3000-memory.dmp

          Filesize

          8KB

        • memory/1264-64-0x0000000000000000-mapping.dmp

        • memory/1396-61-0x0000000000000000-mapping.dmp

        • memory/1512-59-0x0000000000000000-mapping.dmp

        • memory/1512-60-0x000007FEFBDB1000-0x000007FEFBDB3000-memory.dmp

          Filesize

          8KB

        • memory/1548-63-0x0000000000000000-mapping.dmp

        • memory/1608-56-0x0000000000000000-mapping.dmp

        • memory/1996-65-0x0000000000000000-mapping.dmp

        • memory/2016-66-0x0000000000000000-mapping.dmp