Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e7f6709d239cb1d…

MALICIOUS

PDF

47.5 KB Created: 2020-08-09 03:19:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e608fc8ef966980b5c44293953416ed5 SHA-1: 9b1d887c492ac070535e9b9857ba070c98b0b6dc SHA-256: 6e7f6709d239cb1d16d137a19c0e8203a27e4be1bc643055e25ad1affaf30fce
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links designed to appear as free downloads, but they redirect to malicious infrastructure. The primary redirector URL is identified as malicious, and the document body itself contains this URL, indicating a clear intent to lead the user to a harmful site. The ML classifier also strongly indicated maliciousness.

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=que+es+calidad+de+vida+en+el+trabajo+pdf In PDF document text
    • http://files.artisansatlarge.com/uploads/1/3/0/7/130775934/255a2.pdfIn PDF document text
    • http://files.rightchoicesurrogacy.com/uploads/1/3/0/8/130813668/a20d4.pdfIn PDF document text
    • http://kijitem.claireblackall.com/uploads/1/3/0/9/130969723/vowufekan.pdfIn PDF document text
    • http://files.herbertpauls.com/uploads/1/3/2/7/132712129/2c2e158.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tozonolemudafolafoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2466/2173/files/68199796472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8600/4899/files/visixobifirepepebozejabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9405/6861/files/les_animaux_fantastiques_les_crimes_de_grindelwald_livre_gratuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1567/5815/files/gunstar_heroes_rom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4709/9287/files/57723939913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8268/6367/files/rodrigo_silva_o_ceticismo_da_f.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5243/2537/files/grohe_angle_valve_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9354/1532/files/goniludusefogojuvitifeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/78330883491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1615/9381/files/amplificateur_de_puissance_exercices_corrigs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/samilunudivero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/jowowexevorirefonigasadep.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69FF 5368 bytes
SHA-256: 7e79d8b80140b823a94e6cd61532417fd0c57183e18ab8fb6b4b345639c34d44
font_01_sfnt_off00007c4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C4F 11276 bytes
SHA-256: 591943df26bdced1544dfd2dfe8986ff4be71ba46fdff1e81f6ca22476bc3289
font_02_sfnt_off0000a0f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0F3 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378