Malicious PDF — malware analysis report

Static analysis result for SHA-256 e741ee808bc85786…

MALICIOUS

PDF

74.2 KB Created: 2021-03-14 22:18:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 631df73b96fe874ef9697a9ecf76a982 SHA-1: 7f08073888e56dbbe95fd8718a4c1fb852f2ed1a SHA-256: e741ee808bc857862ace440f96dd25739ccdb42bdf7b8832c8e6dba641426367
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that leads to a phishing domain, as indicated by the 'ML_NYX_PDF_MALICIOUS' and 'CLAMAV_DETECTION' heuristics. The document body, though partially corrupted, suggests a lure related to a common search query, likely to trick users into clicking the malicious link. No scripts were extracted, but the presence of external URIs and the ML classification strongly suggest a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://bologen.ru/strik?utm_term=why+does+my+bluetooth+keep+turning+off+iphone+11
    • http://julubavixukab.66ghz.com/87904460185.pdf
    • http://rovanenafet.getenjoyment.net/beneficios_de_la_miel_de_agave.pdf
    • http://bovibuvebus.getenjoyment.net/brinkmann_gourmet_charcoal_smoker_modifications.pdf
    • http://loxapul.iblogger.org/rufona.pdf
    • http://lajibodomemebev.66ghz.com/33808932014.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/0c83f7b2-1af7-4a77-af62-706950259f16/zoom_g1x_four_vs_g3xn.pdf
    • https://s3.amazonaws.com/purufiz/wubebogetiba.pdf
    • https://uploads.strikinglycdn.com/files/96e27d92-f17c-427f-b9b8-44080def9388/76760777451.pdf
    • https://s3.amazonaws.com/satedafadusizo/gangstar_crime_city_java_game.pdf
    • http://gakamaxoluzes.atwebpages.com/excellence_playa_mujeres_travel_agent.pdf
    • https://s3.amazonaws.com/nawuvud/nest_thermostat_installation_guide.pdf
    • https://s3.amazonaws.com/fizaxo/98545244721.pdf
    • https://uploads.strikinglycdn.com/files/50565c44-5555-437e-aa59-ade1bb3d6470/unequal_childhoods_class_race_and_family_life_by_annette_lareau.pdf
    • https://s3.amazonaws.com/tiniruru/julabaxamazizazapewuvu.pdf
    • http://pepagulax.epizy.com/garapi.pdf
    • https://s3.amazonaws.com/tujeviwakirawu/avast_secureline_vpn_full_free.pdf
    • http://guridej.epizy.com/how_to_restore_brother_printer_to_factory_settings.pdf
    • http://daporev.epizy.com/46204254715.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3e7.bin
f47e9c9df569b381800e6b620a06235564225b5efd7599aa53609fddcf2054fc
pdf-font-stream PDF embedded font (sfnt) at offset 0xE3E7 5616 bytes
font_01_sfnt_off0000f6f0.bin
d4b505775e542018c4f9d7cbe7a98097e50f3079754acd74839292d1e96a6f04
pdf-font-stream PDF embedded font (sfnt) at offset 0xF6F0 10736 bytes