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Overview

overview

8

Static

static

92b17f262e...25.exe

windows7-x64

6

92b17f262e...25.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    153s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2022, 07:13

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General

  • Target

    92b17f262e84e4ff08846fe2340332bb64b08eb8592573669a1ce2cbe35e1025.exe

  • Size

    867KB

  • MD5

    6579e85fc171da2e1db9b70fe648a717

  • SHA1

    204e42e04b7ccb5899064e0deaaf00f88b9a1903

  • SHA256

    92b17f262e84e4ff08846fe2340332bb64b08eb8592573669a1ce2cbe35e1025

  • SHA512

    345ae6434da427e3a71f7679ee475df6200f29eeeddd99425c1af07bdb04343e5487afee18c1a2b8f02fcfbb4abef259c3b9116a5915fbad9665efb79039adf2

  • SSDEEP

    24576:c0GWaQe4ReEiSEF71Ug2lrBdQLYet+2V4y9:c0GWaQLtiPh1Rw4w2V4y

Score
8/10
bootkitpersistence

Malware Config

Signatures

  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 23 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks SCSI registry key(s) 3 TTPs 58 IoCs

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

  • Modifies data under HKEY_USERS 60 IoCs
  • Modifies registry class 14 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 34 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 43 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\92b17f262e84e4ff08846fe2340332bb64b08eb8592573669a1ce2cbe35e1025.exe
    "C:\Users\Admin\AppData\Local\Temp\92b17f262e84e4ff08846fe2340332bb64b08eb8592573669a1ce2cbe35e1025.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    PID:2084
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    PID:2340
  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:2640
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:32
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
        PID:3876
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4176
      • C:\Windows\explorer.exe
        explorer.exe /LOADSAVEDWINDOWS
        2⤵
          PID:4924
      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
        1⤵
          PID:3672
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
          • Suspicious use of WriteProcessMemory
          PID:4120
          • C:\Windows\explorer.exe
            explorer.exe /LOADSAVEDWINDOWS
            2⤵
              PID:4692
          • C:\Windows\system32\sihost.exe
            sihost.exe
            1⤵
            • Suspicious use of WriteProcessMemory
            PID:1968
            • C:\Windows\explorer.exe
              explorer.exe /LOADSAVEDWINDOWS
              2⤵
                PID:1044
            • C:\Windows\system32\sihost.exe
              sihost.exe
              1⤵
              • Suspicious use of WriteProcessMemory
              PID:816
              • C:\Windows\explorer.exe
                explorer.exe /LOADSAVEDWINDOWS
                2⤵
                • Modifies Installed Components in the registry
                • Enumerates connected drives
                • Checks SCSI registry key(s)
                • Modifies registry class
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of SendNotifyMessage
                • Suspicious use of SetWindowsHookEx
                PID:3260

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/2084-132-0x0000000000400000-0x0000000000A2E000-memory.dmp

              Filesize

              6.2MB

              Download

            • memory/2084-134-0x0000000000B50000-0x0000000000B58000-memory.dmp

              Filesize

              32KB

              Download

            • memory/2084-135-0x0000000000400000-0x0000000000A2E000-memory.dmp

              Filesize

              6.2MB

              Download