Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1a923e0b50d327e…

MALICIOUS

PDF

42.3 KB Created: 2020-08-04 03:38:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c796118537c12e696b93e6e88bb0f2cb SHA-1: 59bc1871d10d171ef4a702f8e4dae6ff80d51d34 SHA-256: d1a923e0b50d327eb8168f4c5caca5920a028d739df6fc3976123798be17832b
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a redirector service (ttraff.com) known for malicious activity. The document body, though heavily obfuscated, contains text related to 'high blood pressure chart pdf' and the authoring application 'wkhtmltopdf', suggesting a lure. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm designed to distribute malicious content. The ML classifier strongly flagged this PDF as malicious.

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=high+blood+pressure+chart+pdf In PDF document text
    • http://files.solaceinstruments.co.nz/uploads/1/3/2/6/132683165/29dd1b4946.pdfIn PDF document text
    • http://files.northwoodsrafting.com/uploads/1/3/1/3/131382078/6408436.pdfIn PDF document text
    • http://files.mtcwatercooler.org/uploads/1/3/1/4/131483344/3201671.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/1/0434/8693/7253/files/ruzawadadumadum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7898/4614/files/dijanajolevunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2772/6489/files/73665926705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4700/0983/files/12769460603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0319/1193/files/sidalakesax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5662/5829/files/nuvusubexafababalab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8752/8103/files/just_breathe_telepop_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6748/7894/files/menuxilixafazasufalun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9821/9420/files/gijojigatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3246/0960/files/14541703441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6601/5395/files/16965836173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/11964485259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3309/1480/files/powapepi.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
🗂 Part of campaign: ballatsmithycottage.com 4 samples

Related samples 2

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_off00006604.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6604 5516 bytes
SHA-256: bb9e40737581f2b887a71256b465f6be528b3e58b19e6f6907582aee1baacb44
font_01_sfnt_off000078be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78BE 10452 bytes
SHA-256: 3ba85f73728ce4c618887732252ce41200b80a3a63892676757a06a06a78775e

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