Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d5818b9edad64a8…

MALICIOUS

PDF

47.9 KB Created: 2020-08-21 18:28:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cd9336e9f05a388d910a44bc90c47060 SHA-1: ae9d17d4c9ec2d216fbf7898596fda9f9b7f4075 SHA-256: 7d5818b9edad64a83eba45581eead7e0eb3dd143eb3e1167cab783d6985834b2
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body and heuristics indicate a lure to download a worksheet, but the actual links lead to potentially harmful sites. No scripts were extracted, but the PDF structure and embedded links are indicative of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.com/pify?keyword=chapter+11+nutrition+and+diets+worksheet+answers In PDF document text
    • http://files.batrssocal.com/uploads/1/3/1/3/131384789/vipibifoxoteroxu.pdfIn PDF document text
    • http://files.lulabellestyle.com/uploads/1/3/0/8/130814534/lenupomozonor-luris.pdfIn PDF document text
    • http://pajudiz.dockconnectionllc.com/uploads/1/3/1/0/131070872/wipupavokekes_xovipad_wupugalafunexub.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9177/7949/files/noun_suffix_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/mupawivitutaxopezofuwasiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3654/0056/files/gozebixawaxamogusixijak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/fenawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/5151/0936/files/fintech_malaysia_report_2017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3353/2315/files/english_grammar_tenses_in_gujarati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9299/2410/files/blender_2._8_grease_pencil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9310/2493/files/bombay_high_court_recruitment_2020_clerk_exam_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/52527030488.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_off00007d4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D4D 5128 bytes
SHA-256: 29b9d2cf3f2588408241158b3f38412653377e72e2d88a027d126b7b01afba52
font_01_sfnt_off00008ece.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ECE 10476 bytes
SHA-256: 1c9c322b33c6304f7500f8707d2209afbe20d5e7bafa3c03b5c5214ac536d60e

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