Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ab2b9af61803eb8…

MALICIOUS

PDF

38.9 KB Created: 2020-08-05 01:11:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2fbfe299f9647612c5bc2cf1321d1346 SHA-1: 6240842a7478512cfdfbfc02b78eb4baa3628800 SHA-256: 7ab2b9af61803eb8ff9a83a742d97fa718e8714c14d979148d55b3b2b637ae59
194 Risk Score

Malware Insights

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

The PDF contains multiple links, including one to a known malicious redirector at 'https://ttraff.ru/pify?keyword=sherlock+holmes+arthur+conan+doyle+pdf+download'. The document body and embedded links suggest a lure to download PDFs, likely as a pretext for phishing or malware distribution. The presence of numerous Shopify links, some flagged as benign and others unknown, indicates a link farm strategy to obscure the malicious redirector.

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=sherlock+holmes+arthur+conan+doyle+pdf+download In PDF document text
    • http://files.christianmeditationrookies.com/uploads/1/3/1/8/131859993/jixopop.pdfIn PDF document text
    • http://files.gearupu.com/uploads/1/3/0/7/130776661/noxekezisoxofogogo.pdfIn PDF document text
    • http://files.artreflex.com/uploads/1/3/1/3/131398025/f2d6db3c9b59a.pdfIn PDF document text
    • http://files.199boxingwrestling.com/uploads/1/3/0/7/130738993/xodikako_baduvuleg_petexoj.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/1/0429/0645/2131/files/88071793431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jisabisagubimebusogapasof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/trumpet_classical_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4329/9234/files/52624549930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0763/1783/files/26681996183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5831/4912/files/65530303208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9423/7589/files/rikofavojubomeni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7265/1413/files/87926538149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gabagijujusudizal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7708/2019/files/51330522546.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 4

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_off0000572f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x572F 5756 bytes
SHA-256: 768c19deebecd378888be0419bc11d1edee33e0331d641f02dd55c4b991a3ebe
font_01_sfnt_off00006ab8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB8 10612 bytes
SHA-256: a07064a8284ff67e3a19266f747e399550ffc68a043f663ebfa39c31d47414a7

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