Malicious PDF — malware analysis report

Static analysis result for SHA-256 73f026b465e7d5f6…

MALICIOUS

PDF

43.6 KB Created: 2020-07-31 13:46:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c96c0288960611dfd25acbbf0a6dbf24 SHA-1: 3c42759e37709c8f607dc03c2496dff9f1db730f SHA-256: 73f026b465e7d5f6f94bcf87ce0cb33b2742df989ddc2e6e6953ad1a82f12eea
194 Risk Score

Malware Insights

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

The PDF contains multiple links to redirector infrastructure, specifically 'ttraff.ru', which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to 'cahier de charge creche tunisie pdf', likely a pretext for a phishing or malware download scheme. The ML classifier strongly indicated maliciousness, and the presence of numerous external links points to a link farm or SEO poisoning tactic to distribute malicious content.

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=cahier+de+charge+creche+tunisie+pdf In PDF document text
    • http://files.melissatisonart.com/uploads/1/3/0/7/130775676/narezoxunali_dusut_mamijixoz.pdfIn PDF document text
    • http://files.chriskellylandscapes.com/uploads/1/3/0/7/130775677/dumebabijeroko.pdfIn PDF document text
    • http://files.ktr-tactical.com/uploads/1/3/1/0/131070202/7821524.pdfIn PDF document text
    • http://files.gaylordefree.org/uploads/1/3/1/3/131384401/c2bf0c625d7d.pdfIn PDF document text
    • http://files.everyoneslearning.com/uploads/1/3/2/8/132815385/xajim_xitijebofetumad_tixix.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/1/0432/4933/6483/files/99418132258.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8781/4044/files/19117746927.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2834/9085/files/zolutiraxurenad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1668/2663/files/fuzalezifelazerokegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/gokupubulexixizixuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/wakikulite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2236/7390/files/15241807180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1839/3499/files/83300511734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6646/6216/files/womazozodisagano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93366398369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4145/5254/files/57637091570.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_off00006a00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A00 5180 bytes
SHA-256: 6bd8f351c3c6b9c834e6dceff7c740f161be4a717f923f7a92f1ee1c8bcfcf06
font_01_sfnt_off00007b9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B9D 11396 bytes
SHA-256: d7c86a80dfd0b6d5a146ffbdca0384dfab44eceb358d97b60ebe3c366a8fe5b8

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