Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d6e1b6abf1c7058…

MALICIOUS

PDF

49.4 KB Created: 2020-08-09 07:32:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3012eff4dd5caebb34f3445283f8dd04 SHA-1: 09e0c5c25025f9ed43a51f529d7ef3ca00e21a07 SHA-256: 1d6e1b6abf1c7058426274b88f2f813502fa4d8b2b593be7decb497e33117835
194 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and heuristics indicate it contains a malicious redirector link and a large number of embedded links. The primary malicious URL identified is 'https://ttraff.ru/pify?keyword=cours+anglais+livre+pdf', which is likely used to redirect users to further malicious content. The document body is heavily obfuscated and contains some embedded URLs, but does not provide clear textual lures.

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=cours+anglais+livre+pdf In PDF document text
    • http://files.ranchocommunity.com/uploads/1/3/0/7/130738621/rolakeponemuwumu.pdfIn PDF document text
    • http://zizinero.expo4seniors.com/uploads/1/3/1/0/131070450/kifudutojasa.pdfIn PDF document text
    • http://files.bayleerose.com/uploads/1/3/0/7/130739457/4933030.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/1/0428/9835/8432/files/47184882359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4829/6857/files/92036787649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3242/0264/files/21189850289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4285/5319/files/jozotefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8425/1285/files/45017509318.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6737/4758/files/5468150061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0402/6280/files/79596389657.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2699/6633/files/49749413494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0725/4439/files/john_deere_gt235_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8171/2287/files/29487503173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bugasodaliza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9961/9492/files/46826616837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8875/6374/files/shrimad_bhagwat_geeta_in_english.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_off00007f33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F33 5176 bytes
SHA-256: 7b7f4d0ce2214a6efcaa0c5bd5a5cb39dfb4b222895a52eaf636894c0dd0b433
font_01_sfnt_off000090e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90E3 12240 bytes
SHA-256: 8c86446dafaa42f6d9d14bc0aa4c30104aa4304e745d1010a892a06cb99f12af

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