Malicious PDF — malware analysis report

Static analysis result for SHA-256 a138a81095e590b9…

MALICIOUS

PDF

38.1 KB Created: 2020-08-13 18:46:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f08c797645f5ac8c716a0720ba3057a1 SHA-1: 481711b254a686968328a591653926f9a04b978b SHA-256: a138a81095e590b97093524ed04eaf30fe019df03a74a41daacbdb6e6914b636
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous external links, with the primary one leading to a Shopify domain. The document body, though partially corrupted, contains text suggesting a 'General cable catalogue pdf' lure, and the embedded URL 'https://ttraff.com/pify?keyword=general+cable+catalogue+pdf' confirms this redirection 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.com/pify?keyword=general+cable+catalogue+pdf In PDF document text
    • http://files.rcgsociety.org/uploads/1/3/0/8/130813601/fudan_timebagitokenu_zozusikunapuku.pdfIn PDF document text
    • http://files.wpbchiropractor.com/uploads/1/3/1/4/131406390/lafos.pdfIn PDF document text
    • http://files.merarifernandez.com/uploads/1/3/1/3/131380767/tafuxul-zewopabide-lisaweto.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/1/0428/9835/8432/files/damegadunuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2333/4565/files/10530204568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4884/3934/files/79711260182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5526/8519/files/70217516669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6203/4589/files/8111764038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/domamusuvusuzexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4176/7072/files/bailey_and_love_surgery_24th_edition_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2041/7181/files/marketing_strategies_for_agricultural_products.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8261/0843/files/hell_biker_persona_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9495/0556/files/72265800686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9505/5777/files/77731197661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/lavekix.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_off0000573f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x573F 5316 bytes
SHA-256: f99932b5c1740a88ed7a2fb943304a2637f18629e8c443c6f5fb64f4774aa459
font_01_sfnt_off00006961.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6961 10192 bytes
SHA-256: 9bb3eb6ecd8f96b571f4336e8f0b30a442092025b11ebdc6a2d16b5a6ab2b555

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