Malicious PDF — malware analysis report

Static analysis result for SHA-256 63fcebc73d315639…

MALICIOUS

PDF

43.0 KB Created: 2020-08-20 10:49:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b27cbfbe0b72c05ade38d04de9d5ab57 SHA-1: a0865381bdb3a1682e8dc2633398e627c6f17de0 SHA-256: 63fcebc73d315639c93118c24b697d0128ffcaef1904967483d3ca3001cd23aa
194 Risk Score

Malware Insights

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

This PDF file contains multiple embedded links, with one prominently featuring a redirector URL. The document body, though partially corrupted, suggests a lure for a manual download. The primary malicious link, 'https://ttraff.ru/pify?keyword=avometer+8+mk+7+manual', is identified as a malicious redirector, likely leading to a phishing or malware distribution site. The presence of numerous external PDF links further indicates a link farm or SEO manipulation tactic.

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.ru/pify?keyword=avometer+8+mk+7+manual In PDF document text
    • http://files.fatutoanutrition.com/uploads/1/3/1/3/131378953/diriruwovufolul_bokala.pdfIn PDF document text
    • http://files.masonkelso.com/uploads/1/3/0/7/130738720/lovew_jasov.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/1/0437/7139/6257/files/vokuvafotolixivugopuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6976/6808/files/bootable_windows_10_usb_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7797/4678/files/jefunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9452/3552/files/plus_two_film_songs_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3817/0526/files/84530663858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6992/1688/files/page_417_of_the_big_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2739/7797/files/pan_card_acknowledgement_slip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9209/8724/files/23778762390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1766/5701/files/bulking_up_workout_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3028/9311/files/busazijoniruxusisorif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5865/8454/files/bixajavufowapudisem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0374/8263/files/tarukonedozo.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 3

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_off00006c2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2E 5040 bytes
SHA-256: 56d6f04901322faff28acde0350a5bee98807a4017727a3ea49293f13ac1c0c5
font_01_sfnt_off00007d48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D48 10060 bytes
SHA-256: ecda901ffd3f771076d2394298344aa56ac76578c1377b813293382f7faf0e87

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