Malicious PDF — malware analysis report

Static analysis result for SHA-256 26e427566079bcb2…

MALICIOUS

PDF

34.7 KB Created: 2020-08-22 00:19:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5400d1afb0854fb2b465e0cbcb0a7c0c SHA-1: a169f0bb560534c4462ab1ae6f41f9856f757ea2 SHA-256: 26e427566079bcb275b8060532f30106302e3060a1b006b5595e73e3617d8d98
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to a URL that appears to be a lure for movie subtitles. The document body, though heavily obfuscated, contains references to the same URL and a large number of embedded PDF links, many hosted on Shopify, which is characteristic of a link farm used for SEO poisoning or distributing malicious content. The primary malicious URL is `https://ttraff.ru/pify?keyword=believer+korean+movie+english+subtitles`.

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=believer+korean+movie+english+subtitles In PDF document text
    • http://files.marilynreynolds.com/uploads/1/3/0/7/130738806/palimigenuruso-simavuzemukoros-tadoge.pdfIn PDF document text
    • http://files.artisan-trails.org/uploads/1/3/0/7/130738806/doxolujanobugil.pdfIn PDF document text
    • http://files.stmichaelsclovis.com/uploads/1/3/0/9/130969358/dojevav-magizopokodok.pdfIn PDF document text
    • http://files.fernfarmcottages.co.uk/uploads/1/3/1/4/131437363/3148417.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/1/0433/0687/7080/files/lurexemip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/lasigikagudanosikoxoser.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0499/1400/files/xasupilotebuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6580/2903/files/46541057398.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4209/2694/files/5743791217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8145/0147/files/paxunudutinimoleloxebejoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8617/5651/files/67923410868.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9179/5873/files/bipisakositoxewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5596/2522/files/67425687157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1525/5710/files/final_fantasy_x_blitzball_luca_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7541/2902/files/stanley_lombardo_aeneid.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_off00004937.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4937 5412 bytes
SHA-256: cd4e45074d791ebd80cf722f25570f6019e655e1290557e5b400b69808bab1f4
font_01_sfnt_off00005b7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B7B 10072 bytes
SHA-256: 0cb9d9b2594faf142d99ea6c0724c38bea59297d29346de8169f7c14f7866c2d

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