Malicious PDF — malware analysis report

Static analysis result for SHA-256 d73435b3da1104b4…

MALICIOUS

PDF

41.5 KB Created: 2020-08-22 09:15:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7acc980791024a4d61894b6e6deaca41 SHA-1: dea10abbcd941f775acd55fa4f676cf2894079d9 SHA-256: d73435b3da1104b42b85ef4e645a2807e63ca2657d8b45a4e12729ea7fa5600b
194 Risk Score

Malware Insights

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

The PDF contains a lure related to video game cheats, directing users to a malicious redirector URL. This URL is part of a link farm designed to distribute malicious content, likely leading to phishing or malware. The ML classifier strongly indicated maliciousness, and the presence of numerous external links supports a malicious intent.

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=gta+vice+city+cheats+codes+for+android In PDF document text
    • http://files.ronwozny.com/uploads/1/3/2/6/132682646/narigokek_vofusawaponofan_vilixelu.pdfIn PDF document text
    • http://files.planningprotocol2.com/uploads/1/3/0/7/130775197/vusuralesulus.pdfIn PDF document text
    • http://tojide.dangshades.com/uploads/1/3/0/9/130969265/4658084.pdfIn PDF document text
    • http://files.vintagerhythmandbluesensemble.com/uploads/1/3/2/7/132712615/7080597.pdfIn PDF document text
    • http://files.danceexpressstudio.com/uploads/1/3/1/4/131409794/niritokojusarete.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/1/0431/5791/3749/files/yang_mills_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8960/7321/files/vozaredamujatemibad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4836/9309/files/puradevesagijatoluv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/5034/9223/files/atkins_quimica_inorganica_4_ed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7997453156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3894/6981/files/parametric_design_in_architecture_fundamentals_methods_applications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0846/6845/files/wave_equation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0889/0792/files/copy_paper_a4_80gsm_white_500_sheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5912/5160/files/40715813705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0392/8991/files/apc_back_ups_xs_1000_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2317/8656/files/labobukafudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3240/7198/files/gunnebo_speedstile_datasheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9237/6741/files/20016899896.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_off000063a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A3 5268 bytes
SHA-256: 4a0959d7d0918978352ae36f76856fa613a590438d645a32041684713f36c31c
font_01_sfnt_off00007595.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7595 10300 bytes
SHA-256: 16623c7b973b3123270627aced13ffa95ef0423f81802ef6530f9c056ba3793e

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