Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bfc843adbf44e7e…

MALICIOUS

PDF

36.2 KB Created: 2020-08-21 22:09:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 79b471934c55879f73758064887d064b SHA-1: a3d1a5cad3bfb64a7a6250b0547096c84579ca88 SHA-256: 7bfc843adbf44e7e01bb9ba8797f0f848b2000a4681dcd52056b70cd7c603e0f
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to redirector infrastructure. The primary malicious link, 'https://ttraff.com/pify?keyword=2011+buick+enclave+haynes+manual', is presented as a lure for a '2011 buick enclave haynes manual'. This suggests a phishing or scam attempt, likely to deliver a secondary payload or lead the user to a malicious website. The ML classifier strongly supports the malicious verdict.

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=2011+buick+enclave+haynes+manual In PDF document text
    • http://files.soulsai.studio/uploads/1/3/1/6/131606550/46d94.pdfIn PDF document text
    • http://files.markspencercook.com/uploads/1/3/1/1/131164202/xaxawasipewavamo.pdfIn PDF document text
    • http://najifizim.isawboston.org/uploads/1/3/1/3/131382133/loguwubapumedoj-mufasupiziw-bokovetabu.pdfIn PDF document text
    • http://bamifoki.trvenorthreviews.com/uploads/1/3/1/1/131164312/xoritamezejafex.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/1/0439/2694/5947/files/minecraft_pe_0._15_0_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0067/6003/files/wemubinuselegomosebavamus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20659662050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1634/8057/files/contemporary_strategy_analysis_9th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6370/4729/files/clinical_microbiology_and_infectious_diseases_john_spicer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2911/8627/files/poulan_wild_thing_2375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13908697451.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 5

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_off00004f1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F1A 5540 bytes
SHA-256: 514a6d03508a05b13037c89611f27fc6993406f99ff43706b49bec7e73f00f2f
font_01_sfnt_off000061d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D6 10080 bytes
SHA-256: 195c6d6a11f2c224b8589a973ce8740d7f1c6c99fc7cdcc449544578bc574392

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