Malicious PDF — malware analysis report

Static analysis result for SHA-256 67538a160933307e…

MALICIOUS

PDF

51.7 KB Created: 2020-07-30 03:14:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 28365e736b6618dd4e23853ef8616481 SHA-1: 39fcb750d046bd76c9a3b54098786d63f69162a1 SHA-256: 67538a160933307e54df3e5cc128202e3bb595d1a530bbf3e1aa14b6f4b0d3cf
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as an Amway product catalog, with a critical heuristic firing indicating a redirector to malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious. The embedded links likely serve to redirect users to a phishing site or to download a second-stage payload.

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.cc/pify?keyword=amway+products+catalogue+pdf+2020 In PDF document text
    • http://files.blindinggray.com/uploads/1/3/1/4/131407138/f2c988d2.pdfIn PDF document text
    • http://files.transformation4you.com/uploads/1/3/1/3/131380985/viwetowaperi_runixen.pdfIn PDF document text
    • http://files.tinykidzofparadiseca.com/uploads/1/3/0/9/130969768/wozunitanitegurat.pdfIn PDF document text
    • http://files.diabetesrelatedretinopathy.org/uploads/1/3/0/7/130776152/e619931c06c.pdfIn PDF document text
    • http://files.photographsbycarolmccullough.com/uploads/1/3/1/4/131452883/femeriwujo-vozukubupoba.pdfIn PDF document text
    • https://amway-site.ru/products/gubka-dlya-obuviIn 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/1/0431/6105/9477/files/fubow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/jovoxugadobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1856/6306/files/falufulozevawiduxiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0386/2440/files/87619625862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1644/4311/files/13406038400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4410/1544/files/47980738971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9886/4804/files/51355364350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9798/1082/files/jamamoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/polonafebomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4013/files/bifajojetedoxiteran.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2902/0317/files/rofirolefefunezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/duzawubemamomavokam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3467/2285/files/36942679808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51098187394.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_off0000888e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x888E 5660 bytes
SHA-256: 29c40c00f71ad09002d0d2fdb76dc64d88e27d5a45d46bb3424268af28b3897f
font_01_sfnt_off00009bef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BEF 10960 bytes
SHA-256: 68f5b5540f06c2235af45d103c8b55254d840ca7411bc51d3078e9b12732d712