Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcc2e690101e02b6…

MALICIOUS

PDF

40.8 KB Created: 2020-08-12 18:26:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f4e6e00d28f8280a9febf37fdf914637 SHA-1: 30b685b533b8a17a72758e17589ee437943f498f SHA-256: dcc2e690101e02b6e2e207626d512a8ba62e00bcfc4352299214cce4ac05a0fa
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.com. This suggests a phishing or malware distribution attempt disguised as educational content. 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/wb?keyword=heating%20effect%20of%20electric%20current%20class%2010%20pdf In PDF document text
    • http://files.cslenergy.com/uploads/1/3/1/4/131484133/eab14e4b27.pdfIn PDF document text
    • http://files.southwestpassages.org/uploads/1/3/0/8/130874213/lezuradeviko-gukivawokevugo-fuzuwopuris.pdfIn PDF document text
    • http://pufoz.porkpalace.com/uploads/1/3/0/8/130874493/vipudalotemopa.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/1/0432/3039/6574/files/gixijokuluwanudulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0933/4696/files/kawowakitasafelupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/73019668934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/64989875230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6807/0824/files/salowenarafanuvovedapopex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3594/1274/files/xexazunupobati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0415/8364/files/simple_wave_drawing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9886/4804/files/dodezerutujadobejitadeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2014/1223/files/vujibokubedarim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8029/4298/files/muwamulijewisekex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5652/8537/files/anatomy_of_retina.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 2

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_off00006006.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6006 5476 bytes
SHA-256: e8577b86431281a8287f3988a7149029e00833c964e7e9a671b8c7e629a04de4
font_01_sfnt_off000072b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72B0 10504 bytes
SHA-256: 47ca92553d547b5f4be9507df3c02e4e5c1d8accd79d3db84f17a675693875cb

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