Overview

overview

10

Static

static

a7506f1c99...dc.exe

windows7-x64

10

a7506f1c99...dc.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    156s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-11-2022 07:03

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General

  • Target

    a7506f1c992044746b81bd99535fee967a9994bfd39800a4ef44dfc64aa1cadc.exe

  • Size

    56KB

  • MD5

    b0ff244e354382a1ba6ccc22fc7b88d0

  • SHA1

    f1e9ff55206103b3b70d6ebd7cde83411ac16f02

  • SHA256

    a7506f1c992044746b81bd99535fee967a9994bfd39800a4ef44dfc64aa1cadc

  • SHA512

    bd9bb2164f927a39e7bb2a23a74ef0febad55b15999d43867d53bf335f35e799ea348edd0fd6ee778ff30a7ac09657ed6caeed125b86ab88d991227c110d10f6

  • SSDEEP

    1536:BNeRBl5PT/rx1mzwRMSTdLpJSAP7BWlD:BQRrmzwR5JZVC

Score
10/10
phobosevasionpersistenceransomware

Malware Config

Signatures

  • Phobos

    Phobos ransomware appeared at the beginning of 2019.

    ransomwarephobos
  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Modifies Windows Firewall 1 TTPs 2 IoCs
    evasion
  • Drops startup file 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops desktop.ini file(s) 2 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\a7506f1c992044746b81bd99535fee967a9994bfd39800a4ef44dfc64aa1cadc.exe
    "C:\Users\Admin\AppData\Local\Temp\a7506f1c992044746b81bd99535fee967a9994bfd39800a4ef44dfc64aa1cadc.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:4860
    • C:\Users\Admin\AppData\Local\Temp\a7506f1c992044746b81bd99535fee967a9994bfd39800a4ef44dfc64aa1cadc.exe
      "C:\Users\Admin\AppData\Local\Temp\a7506f1c992044746b81bd99535fee967a9994bfd39800a4ef44dfc64aa1cadc.exe"
      2⤵
        PID:1304
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2928
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1368
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4884
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:1984
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:3004
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:3680
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:380
        • C:\Windows\system32\netsh.exe
          netsh advfirewall set currentprofile state off
          3⤵
          • Modifies Windows Firewall
          PID:1220
        • C:\Windows\system32\netsh.exe
          netsh firewall set opmode mode=disable
          3⤵
          • Modifies Windows Firewall
          PID:316
    • 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:2856
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1452
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3808
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:772
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:4248

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/316-137-0x0000000000000000-mapping.dmp

        Download

      • memory/380-134-0x0000000000000000-mapping.dmp

        Download

      • memory/1220-135-0x0000000000000000-mapping.dmp

        Download

      • memory/1304-132-0x0000000000000000-mapping.dmp

        Download

      • memory/1368-136-0x0000000000000000-mapping.dmp

        Download

      • memory/1984-139-0x0000000000000000-mapping.dmp

        Download

      • memory/2928-133-0x0000000000000000-mapping.dmp

        Download

      • memory/3004-140-0x0000000000000000-mapping.dmp

        Download

      • memory/3680-141-0x0000000000000000-mapping.dmp

        Download

      • memory/4884-138-0x0000000000000000-mapping.dmp

        Download