Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-01-2023 20:49

General

  • Target

    cc43fc18d6d1dc662ad747652cd961152ee13dbf2cea9bf75564f3e2e8ffd2e8.exe

  • Size

    56KB

  • MD5

    6c8a41af3344dc63c4a21990f11b4e96

  • SHA1

    0cf67235a9a94f016dfd2d0b0416415f38502a6d

  • SHA256

    cc43fc18d6d1dc662ad747652cd961152ee13dbf2cea9bf75564f3e2e8ffd2e8

  • SHA512

    bd15674b2a89957b2735a2860fc211c99e494da32a46e913cf9c2d4e9e71131cd7d2894b6fa968825f8f2418d2b9427f8422e8fb498b0c83216e8436f01f9690

  • SSDEEP

    1536:3NeRBl5PT/rx1mzwRMSTdLpJdfeYm+L8i1NNw:3QRrmzwR5JXJL1D

Malware Config

Signatures

  • Phobos

    Phobos ransomware appeared at the beginning of 2019.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • 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) 15 IoCs
  • Drops file in Program Files directory 64 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 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 51 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cc43fc18d6d1dc662ad747652cd961152ee13dbf2cea9bf75564f3e2e8ffd2e8.exe
    "C:\Users\Admin\AppData\Local\Temp\cc43fc18d6d1dc662ad747652cd961152ee13dbf2cea9bf75564f3e2e8ffd2e8.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:2228
    • C:\Users\Admin\AppData\Local\Temp\cc43fc18d6d1dc662ad747652cd961152ee13dbf2cea9bf75564f3e2e8ffd2e8.exe
      "C:\Users\Admin\AppData\Local\Temp\cc43fc18d6d1dc662ad747652cd961152ee13dbf2cea9bf75564f3e2e8ffd2e8.exe"
      2⤵
        PID:1316
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4828
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:3012
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3476
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:1456
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:5088
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:240
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1656
        • C:\Windows\system32\netsh.exe
          netsh advfirewall set currentprofile state off
          3⤵
          • Modifies Windows Firewall
          PID:632
        • C:\Windows\system32\netsh.exe
          netsh firewall set opmode mode=disable
          3⤵
          • Modifies Windows Firewall
          PID:2268
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon
      1⤵
      • Suspicious use of NtCreateUserProcessOtherParentProcess
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4968
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4064
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4236
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:2520
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:3504

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/240-141-0x0000000000000000-mapping.dmp

      • memory/632-135-0x0000000000000000-mapping.dmp

      • memory/1316-132-0x0000000000000000-mapping.dmp

      • memory/1456-139-0x0000000000000000-mapping.dmp

      • memory/1656-134-0x0000000000000000-mapping.dmp

      • memory/2268-138-0x0000000000000000-mapping.dmp

      • memory/3012-136-0x0000000000000000-mapping.dmp

      • memory/3476-137-0x0000000000000000-mapping.dmp

      • memory/4828-133-0x0000000000000000-mapping.dmp

      • memory/5088-140-0x0000000000000000-mapping.dmp