Malicious PDF — malware analysis report

Static analysis result for SHA-256 14ddaec86d0a83a1…

MALICIOUS

PDF

74.0 KB Created: 2021-03-11 14:08:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 98c71a2a5b8caa8b7f369e182439697d SHA-1: 1dddc9d834e6501bcc4a4dc7e55a1a52148c6b5e SHA-256: 14ddaec86d0a83a189c451425ade76753941719202e0c00c1ea885bdc10b7e83
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file is identified as malicious by multiple heuristics and a machine learning classifier, specifically flagged as a phishing trojan. It contains a mass of external links, many of which point to other PDFs, suggesting a link farm designed to distribute further malicious content. The primary lure appears to be related to agile user story sizing, but the embedded links redirect to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://vilenefex.ru/aws?utm_term=how+do+you+size+a+user+story+in+agile PDF link annotation
    • http://blaugrana.ru/minecraft_earth_softonichwgcb.pdfIn PDF document text
    • http://bufo.online/35519872215ieqmr.pdfIn PDF document text
    • https://s3.amazonaws.com/magapeguwabe/25004300630.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/votasewamefosexigow.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/gegodibajunip.pdfIn PDF document text
    • https://cdn.sqhk.co/sikudile/xhevgfn/zutovumewebajazasiwawi.pdfIn PDF document text
    • https://s3.amazonaws.com/gonima/a_kannada_movie_hd_video_songs.pdfIn PDF document text
    • https://cdn.sqhk.co/daborofus/jjQVraw/flute_ringtone_2020_download_mp3_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/jifedefujodu/bangla_typing_master_free.pdfIn PDF document text
    • https://cdn.sqhk.co/puzadowoke/gdiaYGp/larogowasuzoxididoxin.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/75683130230.pdfIn PDF document text
    • https://cdn.sqhk.co/lilavokolet/gfPYkyE/33466321418.pdfIn PDF document text
    • http://leomannapov.com/42828603263bds7j.pdfIn PDF document text
    • https://cdn.sqhk.co/lolajelor/1yJj839/pinball_machine_suppliers.pdfIn PDF document text
    • http://newberginvestmentproperty.com/sapasulazarfd72c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://332892e0-6a2b-40ad-946e-e7c92c61c867.filesusr.com/ugd/3e5d97_92ea4d493da24e629b461bc942703ff2.pdf?index=trueIn PDF document text
    • https://bd7a0a6f-bbfd-49cc-ba41-c3f2778102d9.filesusr.com/ugd/9ea91e_74680365283745e7a1c5e9835387e544.pdf?index=trueIn PDF document text
    • https://57eba762-b826-4879-8d7a-7f480aba2934.filesusr.com/ugd/e89c2b_f0c1060f730742618d106eaf39d446a0.pdf?index=trueIn PDF document text
    • https://00c0516a-c822-4344-a779-6f74e039753d.filesusr.com/ugd/9e41f0_4b486a93e7b645a3adeef85458f9c442.pdf?index=trueIn PDF document text
    • https://a84030a7-2e48-4039-807a-383e2b7216cc.filesusr.com/ugd/c5d40f_d323ce099d894ca8a44e1c02ccc8143a.pdf?index=trueIn 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_off0000e433.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE433 5196 bytes
SHA-256: 6becb9b04a6dc20d560b7144c5524daa25831af30cbe06a07e11279d5fd9a074
font_01_sfnt_off0000f609.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF609 10856 bytes
SHA-256: 98c1d6fde97fdb60f19b585ec5601dfda2713302db651a5c5764d57cefed6639

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