Malicious PDF — malware analysis report

Static analysis result for SHA-256 af97794ee5f4ccf4…

MALICIOUS

PDF

42.8 KB Created: 2020-08-19 07:55:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 508bdcd63c5da55cce3bb4441acaba4f SHA-1: 4957b869a63038661a26a65e6907b9bcaf9bfd0a SHA-256: af97794ee5f4ccf4eed49c2ec959bfc7c4007918d857ae21b1e6d5487dd83db6
194 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=antares+autotune+vst+free++with+crack'. This URL is likely used to lure users into downloading potentially unwanted or malicious software. The document also exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify domains, suggesting an attempt to manipulate search engine results or distribute content broadly. No scripts were extracted from this sample.

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=antares+autotune+vst+free++with+crack In PDF document text
    • http://files.hempothecary.com/uploads/1/3/0/8/130813588/ronufupuradaxo.pdfIn PDF document text
    • http://files.andreab4me.com/uploads/1/3/2/6/132681832/tuluvefatirole.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/1/0429/4000/6559/files/fevuzozara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6856/9238/files/camera_moto_x_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9806/2501/files/29054572052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5469/2512/files/google_sheets_create_drop_down.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7278/2489/files/capsules_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8918/3398/files/pobuxujazogepug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8025/3593/files/zunajabileb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5660/9957/files/aws_practice_exam_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9268/7513/files/canara_bank_credit_card_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5555/7282/files/60705068031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4921/3349/files/15136784456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0657/4238/files/nixopazetebuled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/5151/0936/files/doles.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_off00006a3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A3B 5140 bytes
SHA-256: cadd6599b7083b3ddce2750d800edf112fdce0b70a984e62d085c874f56509a1
font_01_sfnt_off00007bc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BC8 10052 bytes
SHA-256: 02716e75d889b08e3619ad3d16e603fb510096d86209125b9eefec4190b9502a

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