Malicious PDF — malware analysis report

Static analysis result for SHA-256 96981f320ab3a49e…

MALICIOUS

PDF

72.4 KB Created: 2021-02-27 04:32:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 3e3c86846c9209da6ad621e834309ef0 SHA-1: 492ea52fc57dc7b249d55ebe454cfb425a422d44 SHA-256: 96981f320ab3a49e71299672d1291a83ecc37f9f3bdadec98e21536c3ce3b6c4
126 Risk Score

Malware Insights

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

The PDF contains numerous external URLs, many hosted on disposable domains, and is flagged by heuristics as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. Although no scripts were extracted, the PDF structure and URL patterns are consistent with a malicious document designed to redirect users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://botokaw.ru/123?utm_term=energizer+universal+battery+charger+uk PDF link annotation
    • http://xojuxelase.medianewsonline.com/90801483894.pdfIn PDF document text
    • https://cdn.sqhk.co/farafakilof/beMphdJ/rival_knights_apk_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/xagaxubibiz/ibpejac/us_cinema_box_office_top_10.pdfIn PDF document text
    • http://lulopoboxefon.scienceontheweb.net/introduction_to_management_accounting_16th_edition_solutions_chapter_3.pdfIn PDF document text
    • https://cdn.sqhk.co/pogezasamu/eQN7nhe/2521923910.pdfIn PDF document text
    • http://navevukosuso.mypressonline.com/susufut.pdfIn PDF document text
    • http://rowowesofazov.medianewsonline.com/guy_debord_society_of_the_spectacle_film.pdfIn PDF document text
    • https://cdn.sqhk.co/xoradofexul/IBDghgi/hoplite_key_manager.pdfIn PDF document text
    • https://cdn.sqhk.co/wemowubire/mijiigh/82105982878.pdfIn PDF document text
    • https://cdn.sqhk.co/tiviluluje/UgdLKWl/robotics_notes_elite_switch_gameplay.pdfIn PDF document text
    • http://fukuzowi.sportsontheweb.net/lista_de_verbos_irregulares_en_espaol_y_ingls.pdfIn PDF document text
    • http://zuregazezoral.mygamesonline.org/panasonic_cordless_phones.pdfIn PDF document text
    • http://dawexefif.getenjoyment.net/bojack_horseman_season_5_episode_1_script.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://resilasijajatil.myartsonline.com/lg_g_vista_price_in_ghana.pdfIn PDF document text
    • http://popofisofol.myartsonline.com/probability_practice_problems_and_solutions.pdfIn PDF document text
    • http://xijewixevav.onlinewebshop.net/72514395364.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD00 5436 bytes
SHA-256: 42468a6d4c02b9365023625c9d35efeb3dd8d9d3906bfae1ba0ac26af5569ac7
font_01_sfnt_off0000ef94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF94 10792 bytes
SHA-256: 40b15b923aa1ae6dc9412ea15e88b57599ec0bb92281dd6baa6416ac02ee20b1

Open this report in the interactive analyzer, or submit your own file for analysis.