Overview

overview

6

Static

static

Speccy64.exe

windows10_x64

6

Analysis

  • max time kernel
    300s
  • max time network
    269s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    22-07-2021 20:54

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General

  • Target

    Speccy64.exe

  • Size

    6.8MB

  • MD5

    a6a655d719159feb5a472ce1d387a366

  • SHA1

    e62769f77cae8b30fbcb58f490f42cd07a24aef6

  • SHA256

    80e5d5327d1376c6a2fa142e8ed7772622f5d2ec29411e000e072e7aa716f004

  • SHA512

    d086bca22c6d1505be8a2c7e1cf0c3747738fccba1af3bf143f84b67b88f888a23f58e751bc58a5d47dee40a6cfe6d9106222776e58b57963474175dfadab57f

Score
6/10
bootkitevasionpersistencetrojan

Malware Config

Signatures

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Drops file in System32 directory 4 IoCs
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Speccy64.exe
    "C:\Users\Admin\AppData\Local\Temp\Speccy64.exe"
    1⤵
    • Checks whether UAC is enabled
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3236
    • C:\Program Files\Java\jre1.8.0_66\bin\java.exe
      "C:\Program Files\Java\jre1.8.0_66\bin\java" -version
      2⤵
        PID:3368
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 3368 -s 364
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          PID:636
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s NetSetupSvc
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2556
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /4
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3796
    • C:\Windows\system32\wbem\WmiApSrv.exe
      C:\Windows\system32\wbem\WmiApSrv.exe
      1⤵
        PID:1248
      • C:\Windows\system32\wbem\WmiApSrv.exe
        C:\Windows\system32\wbem\WmiApSrv.exe
        1⤵
          PID:1132
        • C:\Windows\system32\wbem\WmiApSrv.exe
          C:\Windows\system32\wbem\WmiApSrv.exe
          1⤵
            PID:3164

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Initial Access

          Execution

          Persistence

          Bootkit

          1
          T1067

          Privilege Escalation

          Defense Evasion

          Credential Access

          Discovery

          System Information Discovery

          3
          T1082

          Query Registry

          2
          T1012

          Peripheral Device Discovery

          2
          T1120

          Lateral Movement

          Collection

          Exfiltration

          Command and Control

          Impact

          Replay Monitor

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          Downloads

          • memory/3368-114-0x0000000000000000-mapping.dmp
            Download