Malicious PDF — malware analysis report

Static analysis result for SHA-256 44426bff814c2660…

MALICIOUS

PDF

39.3 KB Created: 2020-08-21 05:56:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b832fbddb828aa7d29bbbbdfbaa94202 SHA-1: 009942700e04f955e3072482e43e7536ad77da0a SHA-256: 44426bff814c26604edc4b48a5bb6f36ae1514a7501454a79af570981acf4eb1
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, designed to appear as legitimate documents. One of these links, https://ttraff.com/pify?keyword=employment+hero+app, is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and the employment lure. This suggests the PDF is part of a link farm or SEO poisoning campaign to drive traffic to malicious sites.

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/pify?keyword=employment+hero+app In PDF document text
    • http://files.porvenirmassacre.org/uploads/1/3/1/8/131871568/81ab386b0422.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/1/0431/2170/5124/files/xerogifidebibunasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2340/8032/files/rerixuxoxoxezasowor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1174/2628/files/65625986121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9131/2288/files/suwavimefip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0491/1006/files/noaa_weather_stevens_pass.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1618/2184/files/toshiba_television_remote_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/division_del_abdomen_en_9_cuadrantes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6747/2037/files/jawetobijozegikeparisuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4027/6642/files/7538524176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2874/1272/files/nedaximiritejunal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8960/0414/files/towujurumuxokez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3134/6856/files/vupefikidafatujif.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 3

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_off00005d4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D4E 4940 bytes
SHA-256: b3ef577397bdbbe16f1fb40796eb7401298de6681f804ff9f3cde4b7be0b7aad
font_01_sfnt_off00006dec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DEC 10204 bytes
SHA-256: 659eb0321076d4ed403ef46ba040afec67f27d7c74c1d32f2523c9fb0dbec68a

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