Malicious PDF — malware analysis report

Static analysis result for SHA-256 69ac6bfa7c7fbbe9…

MALICIOUS

PDF

36.6 KB Created: 2020-08-17 07:39:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4974f21c8ed1fb063c67f12dd81ee79b SHA-1: 8c251a146ea3a2c47c0b897d674ae45779f3d9e7 SHA-256: 69ac6bfa7c7fbbe948a57b37dff31e592b03ec11753d46fe614f46b681341998
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service designed to obscure the final destination. The primary redirector URL is associated with known malicious infrastructure, suggesting a phishing or scam attempt. While no scripts were directly extracted, the PDF structure and link farm heuristic indicate a malicious intent to redirect users to potentially harmful 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=standards+guidelines+electroplated+plastics In PDF document text
    • http://files.antiquecues.com/uploads/1/3/1/0/131070230/zunutuwip.pdfIn PDF document text
    • http://lurigina.dowbydesign.com/uploads/1/3/0/7/130739723/kefipuwasemulin.pdfIn PDF document text
    • http://files.goodtimesatlanta.com/uploads/1/3/2/6/132695662/1912e73c17ee4de.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/1/0447/2268/4058/files/structural_isomers_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8266/1526/files/gefifokajubowebitefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/rapidex_english_speaking_course_bangla.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1652/6752/files/business_english_grammar_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6982/files/gejarulofamivex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7881/1797/files/libros_de_ansiedad_en_nios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1403/7397/files/wunagigutuwifafiwozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/song_obak_chader_aloy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5253/1869/files/vodifono.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_off00004fc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FC5 5344 bytes
SHA-256: caf12d711c53fcf3cf514838691d2c1d641b055423f95f02d7daf95e942816fd
font_01_sfnt_off000061f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F0 10572 bytes
SHA-256: 795f72bef4eceba4b3688b061003a8426ef5888afe3089c0e3d0a7f499dddcc9

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