Malicious PDF — malware analysis report

Static analysis result for SHA-256 116dacc900246480…

MALICIOUS

PDF

84.4 KB Created: 2021-03-19 05:12:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 91b14eca78ad6245724c8d466373d68c SHA-1: 85afde4fb2b4bc34816128e7872533161cba1740 SHA-256: 116dacc90024648056864d9911a99b0227e3ea4561c021ad405c49701f9aa7b2
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://xajibur.ru/aws?utm_term=lg+dishwasher+not+draining+at+end+of+cycle PDF link annotation
    • http://getbuiss.online/535125994266ofro.pdfIn PDF document text
    • https://fimulumalopa.weebly.com/uploads/1/3/5/3/135326017/fizuwi.pdfIn PDF document text
    • http://biweekamnf.com/nojipupaxegesogemz9cye.pdfIn PDF document text
    • https://munijames.weebly.com/uploads/1/3/2/8/132814228/fejiwisobo-fomilo.pdfIn PDF document text
    • http://dehydratedoriginalgoodness.com/135725466695cdl9.pdfIn PDF document text
    • http://euroshopme.site/badoo_live_apkt12gp.pdfIn PDF document text
    • http://microbestdigitalmeter.xyz/advanced_english_vocabulary_wordscmm6x.pdfIn PDF document text
    • http://tihefers.online/build_your_own_breakfast_nookxvtef.pdfIn PDF document text
    • http://pifowovumuwe.medianewsonline.com/wawavizuperimosara.pdfIn PDF document text
    • http://xizerunax.scienceontheweb.net/show_your_work_austin_kleon_espaol.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nagev/riddles_for_adults_with_answers_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/rafiralexezol/54851099363.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/free_online_casino_games_no_s.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2b9f945-b742-4e46-a871-5d9204aed4d3/coby_mp620-4g_charger.pdfIn PDF document text
    • http://vubuzixefixa.onlinewebshop.net/43312102057.pdfIn PDF document text
    • https://s3.amazonaws.com/vebenok/hp_laserjet_1320n_configuration_page.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/745531da-a278-402f-a67b-44b07a253eb8/briggs_and_stratton_675_series_throttle_linkage.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/xo_tour_llif3_piano_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5d3da27-380f-46bf-9938-f90ebc9d4174/honeywell_thermostat_not_turning_on_heat_pump.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_off00010c53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C53 5416 bytes
SHA-256: 817010518e191a6d8bb46e7608c0f8ade4d08ffa7352eeb2cdde668ceba5925e
font_01_sfnt_off00011edb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EDB 11036 bytes
SHA-256: cd5b8a227138b88d6da6d11750d200f254eab8d1169985a909950d35c03f82bb

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