Malicious PDF — malware analysis report

Static analysis result for SHA-256 85d0db10d1b8e7da…

MALICIOUS

PDF

42.0 KB Created: 2020-08-10 14:21:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 978babee6207d6018378680b474e1f8f SHA-1: e8a1de7d60b816b8e4854da0012361d201cbc011 SHA-256: 85d0db10d1b8e7da25829a6d16085be810cc797e0c011a4b9a8587e1b35174cf
194 Risk Score

Malware Insights

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

The PDF contains embedded links pointing to a known malicious redirector, ttraff.ru, which is likely used to obscure the final destination and potentially deliver a payload. The heuristic firings indicate the PDF is designed as a link farm, likely for SEO-based phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to redirect users to 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=caatsa+section+231+pdf In PDF document text
    • http://files.suemurrayphotographer.com/uploads/1/3/1/4/131437493/588f8.pdfIn PDF document text
    • http://fitota.spaceycave.com/uploads/1/3/1/6/131607062/9835825.pdfIn PDF document text
    • http://files.livybella.com/uploads/1/3/2/7/132741109/7624280.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/1/0432/2502/2621/files/12933486175.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/babape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8685957786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6463/1195/files/46358086254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4384/7328/files/calendario_2020_enero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/classifying_polynomials_quiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1218/6531/files/kuzaguxikomifitumiroxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2640/7833/files/64143855746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4126/8647/files/zesogasipelazewaberewubax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0940/0214/files/28359589980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9044/4445/files/60267022792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4062/8120/files/97497984826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/35810014568.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_off000066df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66DF 5276 bytes
SHA-256: 1a71f63b4fa50ccf736b34b12d387bb7941756b424f5ad01f6a173e1e7ac5f46
font_01_sfnt_off000078e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E6 9876 bytes
SHA-256: 6840569495838fce6145832f5136071ad2829fbaa72817c0be86b9341ab4da99

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