Overview

overview

10

Static

static

df6e1e7226...97.exe

windows7_x64

10

df6e1e7226...97.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    134s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    07-07-2020 08:32

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General

  • Target

    df6e1e72261d4741c7ab841b098ab497.exe

  • Size

    151KB

  • MD5

    df6e1e72261d4741c7ab841b098ab497

  • SHA1

    f3f84f9a10315f95a73871a53452cf38ef32d9ac

  • SHA256

    2026e97bd58d8848dbd55664417790d5ee804bc2fe86ad054cb6a304d2d39a6b

  • SHA512

    70f9e5e2492bdb33ca85274455093d1bc8331b47e31dfdaec9cd47298d7834281c5f93b1b25379ee2aa51d68be320282e36f28ce6004fd9caae4905fc101078b

Score
10/10
buerloaderpersistence

Malware Config

Signatures

  • Buer

    Buer is a new modular loader first seen in August 2019.

    loaderbuer
  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
    persistence
  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\df6e1e72261d4741c7ab841b098ab497.exe
    "C:\Users\Admin\AppData\Local\Temp\df6e1e72261d4741c7ab841b098ab497.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2460
    • C:\ProgramData\60c85a4d4ecb90012faa\gennt.exe
      C:\ProgramData\60c85a4d4ecb90012faa\gennt.exe "C:\Users\Admin\AppData\Local\Temp\df6e1e72261d4741c7ab841b098ab497.exe" ensgJJ
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Deletes itself
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2116
      • C:\Windows\SysWOW64\secinit.exe
        C:\ProgramData\60c85a4d4ecb90012faa\gennt.exe
        3⤵
        • Modifies WinLogon for persistence
        • Enumerates connected drives
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:764
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" powershell.exe -Command "& {Add-MpPreference -ExclusionPath C:\ProgramData\60c85a4d4ecb90012faa}"
          4⤵
            PID:484
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" powershell.exe -Command "& {Add-MpPreference -ExclusionPath C:\ProgramData\60c85a4d4ecb90012faa}"
          3⤵
            PID:3720

      Network

      MITRE ATT&CK Enterprise v6

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      Downloads