Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3a584e07241b5f4…

MALICIOUS

PDF

52.2 KB Created: 2020-08-02 14:06:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b8a4d27151470a57a5cce83d3df82bd5 SHA-1: 675c0042668add0042907304fdb897b333c35212 SHA-256: b3a584e07241b5f4f65e1d7b414075c68baa0ca59fc8d09c7cf0c538d27494ac
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, with one pointing to a known malicious redirector. The document body text, though partially corrupted, includes the same URL, suggesting a lure to a malicious site. The presence of numerous other links, many hosted on Shopify, indicates a link farm designed to obscure the true destination or spread 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.com/pify?keyword=alaska+state+abbreviation In PDF document text
    • http://files.teamacorntriathlonclub.org/uploads/1/3/1/1/131163859/7829059.pdfIn PDF document text
    • http://files.millimanquarterhorses.com/uploads/1/3/0/7/130738765/rujefimodedizi.pdfIn PDF document text
    • http://files.michaelazoe.com/uploads/1/3/0/7/130775292/804390.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/1/0428/5353/1807/files/faxoxaxizawomolirudoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/dapuzagopifixotefiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2735/6056/files/49938108263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5018/0514/files/73231044938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8333/3785/files/40573109138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4424/7451/files/vazidisebebawinukaxositos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5820/7651/files/95857575863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8127/7352/files/kenejezezojuxoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8792/9252/files/63176695821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/foxy_roxxie_ssbbw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9103/3250/files/36231162360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9978/2309/files/53064336921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1486/5575/files/40822526249.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: millimanquarterhorses.com 3 samples

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_off00008522.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8522 4932 bytes
SHA-256: 0d45d82a678fb2ed6e69c0398125df426559d8194e4dd013e62ef6fe43182399
font_01_sfnt_off000095fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95FC 14972 bytes
SHA-256: 501174110036a2ae94f9d3a9f19a2d8ac9baf368edf98a841683565fcf324dd2

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