Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fefcb13f73cd283…

MALICIOUS

PDF

43.8 KB Created: 2020-08-19 04:20:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9fcc8fb0641109e78fea7337b83dd883 SHA-1: 27e1c360e0deebbc879ebda15632a6fac1742c60 SHA-256: 0fefcb13f73cd283d63216045aee1324ab539b02d4bf4b57d092c24a400b6ff5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm designed to appear as search engine results, directing users to a malicious redirector. The primary lure is 'Kitchen accessories 3ds max model free', suggesting a phishing or malware download attempt. The ML classifier strongly indicates maliciousness, and the presence of multiple links to redirectors and benign-looking PDFs points to a campaign distributing 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.cc/pify?keyword=kitchen+accessories+3ds+max+model+free In PDF document text
    • http://files.vermontsingingdrum.com/uploads/1/3/1/4/131452958/d27a91cdb0.pdfIn PDF document text
    • http://files.mrmaglocci.com/uploads/1/3/0/7/130776167/maguv-lalovuzig.pdfIn PDF document text
    • http://files.tastefulvoyages.com/uploads/1/3/0/7/130775506/putijegijekur.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/1/0432/7066/8448/files/fewapilaverexos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6117/4684/files/jokiwikusotunewuran.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0678/files/gibaxam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2684/0738/files/meloxetisudejega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1104/7575/files/88943771833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9363/8822/files/lazewatagebupowuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7952/2722/files/39134180340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3406/7615/files/qigong_breathing_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5312/9640/files/63522951500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0003/7527/files/grammar_translation_method_articles.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA1 5248 bytes
SHA-256: aca0cafea21a672c248d4f5b97ef09615a325fa34162b1d50cea671582342a2f
font_01_sfnt_off00007138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7138 10280 bytes
SHA-256: ed4994e3ea5f1f866c3787589566709e927dd8c4ac06aaad9badd8fb14ef50d5
font_02_sfnt_off0000945f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x945F 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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