Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bdae4b3730beedb…

MALICIOUS

PDF

45.3 KB Created: 2020-08-22 19:06:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5f39e56aaa345b64cba7f27da18ab9dd SHA-1: 7222c1f955aa97ea7416f725645233ef051f04fd SHA-256: 3bdae4b3730beedb087b7f8f4fd495793560b565eaf232146b610ffc197d8465
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though partially corrupted, contains text related to 'Aluminium alloy sheet thickness' and the malicious URL, suggesting a lure for users interested in such topics. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further 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=aluminium+alloy+sheet+thickness In PDF document text
    • http://files.lingsgardenstore.com/uploads/1/3/1/6/131637419/siliju.pdfIn PDF document text
    • http://gexubavo.allthingsginamarie.com/uploads/1/3/1/0/131071157/vibugazukafaji-komedixu-ligimogi.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/1/0432/2702/1480/files/64445211193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8038/3653/files/turovajipolupakipozepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2010/6404/files/interview_questions_and_answers_for_structural_engineer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2119/7735/files/74778054748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bivunamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3353/2315/files/unwell_matchbox_20.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3441/8075/files/federal_itemized_deductions_worksheet_2017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6866/0643/files/83611497484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4179/1900/files/wukix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2592/4249/files/export_without_bleed_indesign.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0734/3779/files/92061404983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2857/8467/files/86763995657.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8110/4541/files/repoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/4054/1593/files/41864220197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5222/6974/files/uruvam_full_movie_tamilrockers.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 2

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_off000072e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72E1 5100 bytes
SHA-256: a918e4de02807ad1899b0aac7b14282b4710b37bd74caed1b817fe4bc339cfff
font_01_sfnt_off00008412.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8412 10896 bytes
SHA-256: cf1b4eca122d91b639152fdd07dd81adf960d99a411ffbcc9a38b44fa2faeac7

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