Malicious PDF — malware analysis report

Static analysis result for SHA-256 058902d57a7cbc25…

MALICIOUS

PDF

40.3 KB Created: 2020-08-16 20:42:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e3f94754c85621d5fba5f4bb7a7ce759 SHA-1: 3ad1eec90dd44b805f3178eab155d3aaadf70cff SHA-256: 058902d57a7cbc250afc3d0fcb0736a1811102fd74c561abf137fc86587a986f
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting it's a 'guide book' lure. The presence of many external PDF links suggests a link farm or SEO poisoning tactic to distribute malicious content.

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=bfdi+official+character+guide+book In PDF document text
    • http://files.gardenbaptistchurch.net/uploads/1/3/0/7/130738993/napati_nexugak.pdfIn PDF document text
    • http://votodo.louisefassart.com/uploads/1/3/0/8/130814674/puvojaxeku-rowux-fimuvepigexaz.pdfIn PDF document text
    • http://files.artofdisappearing.com/uploads/1/3/0/7/130739443/jerorukuxoxusonogupo.pdfIn PDF document text
    • http://files.eftcatherine.com/uploads/1/3/1/4/131438784/mazonufisoniw_gazal_wikodipaxebuvel.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/1/0428/5631/7091/files/buzewutugebirol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5970/7037/files/xijafomudaxarijexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2231/0811/files/zavevojosufilitevum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2857/8467/files/let_love_in_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3275/5875/files/cerwin_vega_vpas12st_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3514/0007/files/24011138662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2794/6904/files/jukulokemobol.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 6

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_off00005f36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F36 5360 bytes
SHA-256: a7f750baf1b8c8e2ad0bb8e8cf41390688870dc00efaf3419a1dd8515985533a
font_01_sfnt_off00007164.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7164 10328 bytes
SHA-256: 478d94d90124574730348db9ccbe820d41c8c565e14c41ccbdefc02bca038a8f

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