Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d48d103f11fe228…

MALICIOUS

PDF

71.7 KB Created: 2021-01-08 15:57:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2f0587725d0d87da7d7b67e16d8e2fad SHA-1: d59a7b0496efa8c7e50e933b54cb2cde5dc0ce52 SHA-256: 9d48d103f11fe228b756982389bb97018e8dcbf2d26e01c16ab6a26372f7f4f1
196 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains numerous external links, including one that acts as an SEO redirector to 'https://trafficel.ru/aws?utm_term=hawaiian+birthday+party+invitations+templates+free'. The PDF structure and the presence of many external links suggest it is part of a link farm or phishing campaign designed to drive traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafficel.ru/aws?utm_term=hawaiian+birthday+party+invitations+templates+free PDF link annotation
    • https://s3.amazonaws.com/sukedil/47530587842.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/mugafuxobidi.pdfIn PDF document text
    • https://cdn.sqhk.co/xezojutatow/cgc8sjd/gotomeeting_view_attendee_webcam.pdfIn PDF document text
    • https://s3.amazonaws.com/pulujolatepuv/gavuvofexuzoxu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367667/normal_5f918d5b88b32.pdfIn PDF document text
    • https://cdn.sqhk.co/jakufomego/Yjilia0/costume_stores_open_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/duburijudi/khajdif/pikowejod.pdfIn PDF document text
    • https://s3.amazonaws.com/gitipelut/tafsir_al_quran_melayu.pdfIn PDF document text
    • https://cdn.sqhk.co/nezerozara/giCijgf/vumupafadofuxi.pdfIn PDF document text
    • https://cdn.sqhk.co/javeduner/ifhiagi/nufarezobomofatoxapaz.pdfIn PDF document text
    • https://rapelolizoxofi.weebly.com/uploads/1/3/1/3/131381924/2bd8935b0cef4b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369310/normal_5fbf6265cfbed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389599/normal_5fd3bb741e5ab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463808/normal_5fcf510381800.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367656/normal_5f9307415bfef.pdfIn PDF document text
    • https://cdn.sqhk.co/jabosuve/xqifgex/benopaxovav.pdfIn PDF document text
    • https://jedexapotup.weebly.com/uploads/1/3/4/4/134472831/wotiwosolo_gatedupuza_bodumasofol.pdfIn PDF document text
    • https://cdn.sqhk.co/fipexuwebo/jiv29hf/can_you_escape_1_level_6_walkthrough.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000da88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA88 5636 bytes
SHA-256: de26417ff5c1ecd98e9d44ad745711610f85f9c39ab03c393b6ce07479320e71
font_01_sfnt_off0000ed98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED98 10388 bytes
SHA-256: 59fc6a239af0699e97681c988dc11a507bee6f2cb93908637d7271546e2ee7a8

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