Analysis

  • max time kernel
    124s
  • max time network
    127s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    06/07/2020, 06:42

General

  • Target
    bcb69244dc69a152af4dca3849bb4f3ca634ad785926304c672dbf8a3c38e7bc.exe
  • Size 881KB
  • Sample200706-798pp5xzex
  • SHA256 bcb69244dc69a152af4dca3849bb4f3ca634ad785926304c672dbf8a3c38e7bc
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Modifies service 2 TTPs 4 IoCs
  • System policy modification 1 TTPs 1 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • Enumerates connected drives 3 TTPs
  • Interacts with shadow copies 2 TTPs 3 IoCs

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

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Program crash 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 83 IoCs
  • Suspicious behavior: EnumeratesProcesses 875 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • UAC bypass 3 TTPs 2 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Adds Run entry to start application 2 TTPs 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bcb69244dc69a152af4dca3849bb4f3ca634ad785926304c672dbf8a3c38e7bc.exe
    "C:\Users\Admin\AppData\Local\Temp\bcb69244dc69a152af4dca3849bb4f3ca634ad785926304c672dbf8a3c38e7bc.exe"
    1⤵
    • System policy modification
    • Drops desktop.ini file(s)
    • Suspicious use of WriteProcessMemory
    • Checks whether UAC is enabled
    • UAC bypass
    • Adds Run entry to start application
    PID:2920
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 952
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      PID:3796
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 1008
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      PID:3780
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 1152
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      PID:3860
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 1156
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      PID:3220
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 1144
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      PID:3908
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 1256
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3436
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 1152
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3972
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 1260
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2776
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 1504
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:692
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 1632
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:416
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 1620
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3696
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 1512
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3036
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 1700
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:1960
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3868
    • C:\Windows\SysWOW64\vssadmin.exe
      vssadmin.exe Delete Shadows /All /Quiet
      2⤵
      • Interacts with shadow copies
      PID:740
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3032
    • C:\Windows\SysWOW64\vssadmin.exe
      vssadmin.exe Delete Shadows /All /Quiet
      2⤵
      • Interacts with shadow copies
      PID:3804
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1960
    • C:\Windows\SysWOW64\vssadmin.exe
      vssadmin.exe Delete Shadows /All /Quiet
      2⤵
      • Interacts with shadow copies
      PID:800
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 1148
      2⤵
      • Program crash
      PID:424
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 2052
      2⤵
      • Program crash
      PID:3168
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Modifies service
    • Suspicious use of AdjustPrivilegeToken
    PID:3688

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/416-38-0x0000000004480000-0x0000000004481000-memory.dmp

        memory/424-63-0x0000000005440000-0x0000000005441000-memory.dmp

        memory/424-60-0x0000000004A90000-0x0000000004A91000-memory.dmp

        memory/692-34-0x0000000004BF0000-0x0000000004BF1000-memory.dmp

        memory/692-37-0x0000000005520000-0x0000000005521000-memory.dmp

        memory/1960-50-0x0000000004410000-0x0000000004411000-memory.dmp

        memory/1960-53-0x0000000004DC0000-0x0000000004DC1000-memory.dmp

        memory/2776-33-0x0000000005590000-0x0000000005591000-memory.dmp

        memory/2776-30-0x0000000004BE0000-0x0000000004BE1000-memory.dmp

        memory/2920-157-0x0000000004BE0000-0x0000000004BE1000-memory.dmp

        memory/2920-1-0x0000000001E10000-0x0000000001E11000-memory.dmp

        memory/3036-49-0x00000000055A0000-0x00000000055A1000-memory.dmp

        memory/3036-46-0x0000000004E60000-0x0000000004E61000-memory.dmp

        memory/3168-68-0x0000000004240000-0x0000000004241000-memory.dmp

        memory/3168-72-0x0000000004B70000-0x0000000004B71000-memory.dmp

        memory/3220-17-0x0000000004C90000-0x0000000004C91000-memory.dmp

        memory/3220-14-0x0000000004460000-0x0000000004461000-memory.dmp

        memory/3436-25-0x0000000005450000-0x0000000005451000-memory.dmp

        memory/3436-22-0x0000000004B20000-0x0000000004B21000-memory.dmp

        memory/3696-42-0x0000000004980000-0x0000000004981000-memory.dmp

        memory/3696-45-0x0000000005330000-0x0000000005331000-memory.dmp

        memory/3780-9-0x0000000004C90000-0x0000000004C91000-memory.dmp

        memory/3780-6-0x0000000004360000-0x0000000004361000-memory.dmp

        memory/3796-5-0x0000000005010000-0x0000000005011000-memory.dmp

        memory/3796-3-0x00000000049E0000-0x00000000049E1000-memory.dmp

        memory/3796-2-0x00000000049E0000-0x00000000049E1000-memory.dmp

        memory/3860-10-0x0000000004120000-0x0000000004121000-memory.dmp

        memory/3908-21-0x0000000004D30000-0x0000000004D31000-memory.dmp

        memory/3908-18-0x0000000004500000-0x0000000004501000-memory.dmp

        memory/3972-29-0x0000000004DE0000-0x0000000004DE1000-memory.dmp

        memory/3972-26-0x00000000044B0000-0x00000000044B1000-memory.dmp