Overview

overview

9

Static

static

e17f07f62b...62.exe

windows7_x64

9

e17f07f62b...62.exe

windows10-2004_x64

9

Analysis

  • max time kernel
    112s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 04:31

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General

  • Target

    e17f07f62bed84c388121ef63ecae48ac69834ae4cdff92b5f8871ed88f67c62.exe

  • Size

    1.9MB

  • MD5

    4a1c0fd0dea70de9898517ac5c37d766

  • SHA1

    38bea50aa5e4f0693bbebac4c12bbcb469b045b0

  • SHA256

    e17f07f62bed84c388121ef63ecae48ac69834ae4cdff92b5f8871ed88f67c62

  • SHA512

    a3632a5c15a0d5b84e28fc7e2f95a5b73e8f08037c1415682592eceaf9001aa971135cf534a4d039c9bd8854e0c08359ac300a27c429e592879367b7ae83c195

Score
9/10
bootkitevasionpersistencetrojan

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    evasion
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • 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
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e17f07f62bed84c388121ef63ecae48ac69834ae4cdff92b5f8871ed88f67c62.exe
    "C:\Users\Admin\AppData\Local\Temp\e17f07f62bed84c388121ef63ecae48ac69834ae4cdff92b5f8871ed88f67c62.exe"
    1⤵
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Checks whether UAC is enabled
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    PID:5100
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 1276
      2⤵
      • Program crash
      PID:3544
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 5100 -ip 5100
    1⤵
      PID:4748

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Bootkit

    1
    T1067

    Privilege Escalation

    Defense Evasion

    Virtualization/Sandbox Evasion

    2
    T1497

    Credential Access

    Discovery

    Query Registry

    3
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    2
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • memory/5100-130-0x00000000773A0000-0x0000000077543000-memory.dmp
      Filesize

      1.6MB

      Download
    • memory/5100-131-0x0000000000400000-0x00000000008C4000-memory.dmp
      Filesize

      4.8MB

      Download
    • memory/5100-132-0x0000000000400000-0x00000000008C4000-memory.dmp
      Filesize

      4.8MB

      Download