Malicious PDF — malware analysis report

Static analysis result for SHA-256 e68a49aff090f289…

MALICIOUS

PDF

46.1 KB Created: 2020-08-06 13:50:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c93d7943a1510d41cf6dd80b6cab0d42 SHA-1: 962ae3bee4421a72485d328599688da6f8548888 SHA-256: e68a49aff090f2895d6315e1b0baa85a7e91dab68c8bff3786c3fe83bb3a9ce5
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is an ebook, which is a common lure. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm designed to improve SEO for malicious content. The ML classifier also 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.ru/pify?keyword=a+guide+to+descriptive+writing+practice+ebook+pdf In PDF document text
    • http://files.thefifacorruptionscandal.com/uploads/1/3/0/8/130814353/bulixamigi.pdfIn PDF document text
    • http://files.tynesidebookclub.com/uploads/1/3/0/8/130813582/6424547.pdfIn PDF document text
    • http://files.gilchristwhatnot.com/uploads/1/3/1/8/131856991/wepesebenemitaf.pdfIn PDF document text
    • http://files.danishclubnanaimo.com/uploads/1/3/2/6/132681342/jitededokiso.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/1/0436/7400/9753/files/socialismo_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6497/5765/files/fidatenikukiduvumaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98029452840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9672/7957/files/latukira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4429/6088/files/32509170471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2289/8584/files/8386752980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2168/1315/files/tuzado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2408/9242/files/27061542497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52325197595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0936/7454/files/8104826601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7194/7423/files/49694942240.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_off0000740c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x740C 5636 bytes
SHA-256: 2d292b60c73f21ccf950f7c2aa08f0a210306f548989d08fff12fba91318d349
font_01_sfnt_off0000875f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x875F 10452 bytes
SHA-256: db56f26b354d1e0364d7099c26c015b6da628b74330dc8ea479e49fd99e4db89

Open this report in the interactive analyzer, or submit your own file for analysis.