Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a4d342dd7a24dd8…

MALICIOUS

PDF

44.5 KB Created: 2020-08-21 13:46:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1cb80185c26b4c4dd2da43b1f0b3845e SHA-1: 1d8b75a1cec730872832e2af48681c7fe6f70e00 SHA-256: 0a4d342dd7a24dd809b8c2f0ccaeed5fd1edb30f116562e7d50e7c78c3c8ea85
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains hosting PDF files, but one prominent link redirects through 'ttraff.com', a known malicious redirector. This suggests a phishing or malware distribution scheme disguised as a free book download. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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.com/pify?keyword=magisterium+series+book+3+pdf In PDF document text
    • http://gipuxuxi.socialdistancingwiththeriggs.com/uploads/1/3/2/6/132681352/e2f8dcc.pdfIn PDF document text
    • http://files.musicin233.com/uploads/1/3/0/8/130874667/1775454.pdfIn PDF document text
    • http://files.prideontheplains.com/uploads/1/3/1/4/131452982/8457773.pdfIn PDF document text
    • http://files.foxtalesfiji.com/uploads/1/3/1/3/131383398/2162681.pdfIn PDF document text
    • http://wosavabe.barefoottraveler.com/uploads/1/3/1/3/131384362/4062385.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/1/0434/7117/5846/files/61216180721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4794/2294/files/15346024258.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8543/0945/files/64791586707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7863/1072/files/rijadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9431/9009/files/rosapegesezivula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/12719442443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4099/5490/files/87457231543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1622/8761/files/24760921427.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_off00007093.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7093 5700 bytes
SHA-256: 2e316993d87fc0c4f9f2fc3830ef535bc131fbd12b2c2d9764f09561e0c20a82
font_01_sfnt_off000083ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83EA 9816 bytes
SHA-256: 971777b351622a42cb60ec593bff2527e97131dd2eab14a03eb30a6564ba6b95

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