Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b263eef490f3383…

MALICIOUS

PDF

41.0 KB Created: 2020-08-24 18:26:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01fbb516f188bf028961b777b1685e7e SHA-1: b1bc30ba72e45dfe8d131c34f34cbac31448d94e SHA-256: 0b263eef490f3383011f782a84056de35c59ecf45efae972048392634fcf2b4c
194 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting it is related to a 'film storyboard format', likely a lure to entice users to click the malicious link. The presence of multiple SEO-optimized PDF links further supports the idea of a link farm or phishing campaign.

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=film+storyboard+format In PDF document text
    • http://files.luxfabusa.com/uploads/1/3/0/8/130873708/5781117.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/1/0429/6402/5493/files/95359731086.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7956/5465/files/google_sheets_for_loop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4829/6857/files/69768101506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9276/2006/files/lizanajuzaxiginujituse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42820491308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/american_girl_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7046/3895/files/56598399105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6820/3942/files/lewugoritowopasekijakasen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4597/6224/files/jimukufona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2014/7095/files/angina_pektoris_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1009/7313/files/38207540285.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 1

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_off00006359.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6359 5248 bytes
SHA-256: 5cfdfef51a3075714ba24812953e068a710e4bc97a912147fd332d0f83da0d8e
font_01_sfnt_off0000751e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x751E 10024 bytes
SHA-256: 26cb4ab7dd496eb6ff30075736a871c1c221d37f6c80133967f24cf3ed672dd7

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