Overview

overview

10

Static

static

bc3b5ef9b1...32.exe

windows7-x64

10

bc3b5ef9b1...32.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    151s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-12-2022 10:29

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General

  • Target

    bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732.exe

  • Size

    56KB

  • MD5

    f7352e7f837f64fb08008a0edcfe5261

  • SHA1

    d8df24afe3e378017660648d88e4fd73e2c4e16b

  • SHA256

    bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732

  • SHA512

    1bd3d41f564e1f3c44c02874df8e94e261a169b58e00a2348f3fd9ce9d3d5df44f3df39713343d02c69ebc597e041280dccb352244d8d3596301e007eec1d84e

  • SSDEEP

    1536:gNeRBl5PT/rx1mzwRMSTdLpJ5qE4ROWUur:gQRrmzwR5Jk/Uur

Score
10/10
phobosevasionpersistenceransomwarespywarestealer

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
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops desktop.ini file(s) 23 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\bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732.exe
    "C:\Users\Admin\AppData\Local\Temp\bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732.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:4744
    • C:\Users\Admin\AppData\Local\Temp\bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732.exe
      "C:\Users\Admin\AppData\Local\Temp\bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732.exe"
      2⤵
        PID:3996
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:224
        • 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:1348
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:4560
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:896
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:3804
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:220
        • C:\Windows\system32\netsh.exe
          netsh advfirewall set currentprofile state off
          3⤵
          • Modifies Windows Firewall
          PID:1360
        • C:\Windows\system32\netsh.exe
          netsh firewall set opmode mode=disable
          3⤵
          • Modifies Windows Firewall
          PID:3324
    • 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:1284
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1636
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3588
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:4556
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:3712

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/220-133-0x0000000000000000-mapping.dmp

        Download

      • memory/224-134-0x0000000000000000-mapping.dmp

        Download

      • memory/800-135-0x0000000000000000-mapping.dmp

        Download

      • memory/896-140-0x0000000000000000-mapping.dmp

        Download

      • memory/1348-138-0x0000000000000000-mapping.dmp

        Download

      • memory/1360-136-0x0000000000000000-mapping.dmp

        Download

      • memory/3324-137-0x0000000000000000-mapping.dmp

        Download

      • memory/3804-141-0x0000000000000000-mapping.dmp

        Download

      • memory/3996-132-0x0000000000000000-mapping.dmp

        Download

      • memory/4560-139-0x0000000000000000-mapping.dmp

        Download