Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7066d38ae390a97…

MALICIOUS

PDF

46.1 KB Created: 2020-07-31 03:32:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 95e2e001da940d5b5ff85c4263f6d890 SHA-1: 389c9523cd98f31e678ddd97831ab99d5e0d8eee SHA-256: e7066d38ae390a977a6653ab95a6c5ae164b910655f3189e479adba1e20fbd09
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a technique often used in SEO link farms to manipulate search engine rankings or to distribute malicious content. One of the embedded URLs points to a known malicious redirector, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text that suggests a lure related to 'Almanac book pdf'.

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=almanac+book+pdf In PDF document text
    • http://files.kathleenmarchetti.com/uploads/1/3/0/7/130739275/8454044.pdfIn PDF document text
    • http://files.apriljonesms.com/uploads/1/3/1/4/131407112/mixakabadafasati.pdfIn PDF document text
    • http://files.clintweiler.com/uploads/1/3/0/8/130813694/3f3f9e98f8c1ceb.pdfIn PDF document text
    • http://files.falconfamiliesofky.afaparents.org/uploads/1/3/1/4/131453267/465011.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/1/0429/0537/0787/files/94194990711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7079/8489/files/bufikoxepawajisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8959/0427/files/4087369637.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5622/5688/files/99250808521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4877/2508/files/2341413866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/makazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6338/6016/files/1241075492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0215/7466/files/xoxoxosujizarunemof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/dobitobogovapaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3153/5524/files/zojunabefoxoxototajutaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8187/3048/files/wepekusotod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2702/7352/files/94406959342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2807/0052/files/2712230256.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000077af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77AF 4764 bytes
SHA-256: 3534da0e46e14de8bde045af16de7ac1b08659059b660080326e039ada7d8a50
font_01_sfnt_off000087ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87AD 10736 bytes
SHA-256: b345bc1827f661d80f1c40f838c132e100becb748ac8d090f4b878e356af41a3