Overview

overview

10

Static

static

084Fxy9f.exe

windows7_x64

10

084Fxy9f.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    23-12-2020 18:48

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General

  • Target

    084Fxy9f.exe

  • Size

    182KB

  • MD5

    03f42fa4bb4551157d493df896904f6d

  • SHA1

    70fc59125cde458b573fa3394e95b50ae08c0728

  • SHA256

    782818678a45e29fa285a560b0e3cb2aa9cd766fbeb228cf97eabdb712a03008

  • SHA512

    a39669af4a3bdfc853c458272c19171f90075f9debc833a7f3b29f67604c67522f9d9bca33ff9aa0bda3d8c50c4b1db8468b4894b05c58935998d5586d8dced2

Score
10/10
njrathackedevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

154.202.3.84:5552

Mutex

c0792765cb20555a6d17a1641ac2d34e

Attributes
  • reg_key

    c0792765cb20555a6d17a1641ac2d34e

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\084Fxy9f.exe
    "C:\Users\Admin\AppData\Local\Temp\084Fxy9f.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:636
    • C:\Windows\SmileZ.exe
      "C:\Windows\SmileZ.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3336
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Windows\SmileZ.exe" "SmileZ.exe" ENABLE
        3⤵
          PID:1776

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Discovery

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Windows\SmileZ.exe
      MD5

      03f42fa4bb4551157d493df896904f6d

      SHA1

      70fc59125cde458b573fa3394e95b50ae08c0728

      SHA256

      782818678a45e29fa285a560b0e3cb2aa9cd766fbeb228cf97eabdb712a03008

      SHA512

      a39669af4a3bdfc853c458272c19171f90075f9debc833a7f3b29f67604c67522f9d9bca33ff9aa0bda3d8c50c4b1db8468b4894b05c58935998d5586d8dced2

      Download Submit
    • C:\Windows\SmileZ.exe
      MD5

      03f42fa4bb4551157d493df896904f6d

      SHA1

      70fc59125cde458b573fa3394e95b50ae08c0728

      SHA256

      782818678a45e29fa285a560b0e3cb2aa9cd766fbeb228cf97eabdb712a03008

      SHA512

      a39669af4a3bdfc853c458272c19171f90075f9debc833a7f3b29f67604c67522f9d9bca33ff9aa0bda3d8c50c4b1db8468b4894b05c58935998d5586d8dced2

      Download Submit
    • memory/1776-5-0x0000000000000000-mapping.dmp
      Download
    • memory/3336-2-0x0000000000000000-mapping.dmp
      Download