Malicious PDF — malware analysis report

Static analysis result for SHA-256 6105f7d4619214c5…

MALICIOUS

PDF

48.9 KB Created: 2020-08-09 01:37:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f8b59f3e44ce11c2564a188829ce677c SHA-1: 3467f1a29dbfd319811d2d5ab43595c5ec5675f0 SHA-256: 6105f7d4619214c54001c85c723a6fd0b693dca7ea33d51bc567605c37fbd6ba
194 Risk Score

Malware Insights

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

This PDF file contains numerous links to external resources, many of which are part of a link farm designed to appear as legitimate PDF downloads. The primary redirector URL, https://ttraff.ru/pify?keyword=basic+russian+conversation+pdf, is flagged as malicious. The document body, though heavily obfuscated, contains this same malicious URL, indicating an attempt to direct users to potentially harmful content. No scripts were extracted, but the extensive use of redirector links suggests 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.ru/pify?keyword=basic+russian+conversation+pdf In PDF document text
    • http://files.academyonegoalkeeping.com/uploads/1/3/1/3/131381722/5881792.pdfIn PDF document text
    • http://files.bestdogintheuniverse.com/uploads/1/3/1/1/131164462/topib_tokaw_zopel_xakenebubavimep.pdfIn PDF document text
    • http://files.gracebubeck.com/uploads/1/3/0/7/130740586/6617594.pdfIn PDF document text
    • http://files.cathymacraeauthor.com/uploads/1/3/0/7/130740097/juledoma.pdfIn PDF document text
    • http://files.freshrescue.com/uploads/1/3/1/3/131398357/2325814.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/1/0428/5667/7543/files/tutinapomikakasojakava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3259/8938/files/breakthrough_plus_level_1_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6713/0534/files/resaneseloniti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8305/4757/files/git_drop_changes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/zajarituwexexomenoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9118/9157/files/82538932911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2728/1558/files/51899343813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7092/2655/files/59412348763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2062/3765/files/bahishti_zewar_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3862/9270/files/xitisex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vinujavezo.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_off0000801f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x801F 5228 bytes
SHA-256: 7cba778d580c5b9da48a8ae08d00e08849ca1c0590a36b89bc0b6159de2c78ff
font_01_sfnt_off00009203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9203 10688 bytes
SHA-256: d71409f7bc05b2e857ce1a1defe84b3f232e179adaed9bf839cc9db9b6f551a7

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