Malicious PDF — malware analysis report

Static analysis result for SHA-256 8724e740678aa0cd…

MALICIOUS

PDF

79.1 KB Created: 2020-07-31 17:09:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6d41ae50ba624ffa530b905bcebd9d6 SHA-1: 58fb0865ccb69cd1a1cc901e617f104c2cf6f3cf SHA-256: 8724e740678aa0cdfd3af880bf4daa403955500c0a8f4d54818f887946561aeb
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to other PDF files, many of which are hosted on Shopify. One of these links, and an image lure, redirects to a known malicious URL, indicating a likely phishing or scam campaign. 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=velvet+sky+instagram In PDF document text
    • http://files.vipagroup.org/uploads/1/3/0/7/130775712/waboresogegopix.pdfIn PDF document text
    • http://files.ilovehomecleanhome.com/uploads/1/3/0/8/130813997/9077425.pdfIn PDF document text
    • http://files.dinkidimainecoons.net/uploads/1/3/0/7/130740442/7077561.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/1/0429/0537/0791/files/xorobifafevonowofalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6269/7894/files/vijarajazunip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0844/2020/files/95976462380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7409/3217/files/muvigarexuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8290/6789/files/2586113524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/wozotiduravatalawavero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1688/6184/files/kugokege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8406/2622/files/73498971129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3845/7504/files/26927808464.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e85f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE85F 6588 bytes
SHA-256: c6acebe3750ab55c09714fa1b34f6c70ddae3ce202e1a088ffcbc34adab53285
font_01_sfnt_off0000f8d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8D9 5196 bytes
SHA-256: f1fc5bf8006a7f463e0667e0ccc34694dd71fe6995ba27e90671f5a9788e2c6e
font_02_sfnt_off00010a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A85 10684 bytes
SHA-256: 905f2126c91440d0f7f7665f01fc98795ac4901389fab691f2d718640b67ad3d

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