Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab698bbf9a82fe86…

MALICIOUS

PDF

65.3 KB Created: 2020-08-08 16:14:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7d02e013fcefeccbae3eeb48091a3d02 SHA-1: fa04275a5b91fc1ea6b7512455e571a02bd41ee5 SHA-256: ab698bbf9a82fe86bd9e8e8b296b6e232757ddd691902dfc797073081f38a683
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=algebra+and+trigonometry+6th+edition+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. The presence of a PDF link farm heuristic further supports the malicious intent of distributing links through the document.

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=algebra+and+trigonometry+6th+edition+pdf In PDF document text
    • http://files.rapidibogainetreatment.com/uploads/1/3/0/8/130814515/41b21d.pdfIn PDF document text
    • http://files.mrpultz.com/uploads/1/3/1/1/131163832/9669725.pdfIn PDF document text
    • http://files.teastowels.com/uploads/1/3/0/7/130738771/271b9b9.pdfIn PDF document text
    • http://files.wsuchisigmaalpha.com/uploads/1/3/0/7/130775373/vodelirotovoso.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/1/0438/4584/5152/files/28785465086.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2778/4099/files/bibuvusezozofow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8480/7334/files/acdc_tnt_guitar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6803/8049/files/44736211808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5479/1846/files/32912510598.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6991/5814/files/substitution_and_ellipsis_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4316/6107/files/64419895996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7519/9391/files/34347203465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3111/7467/files/aluminium_sheet_weight_per_square_metre.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5575/2103/files/kesanajuridotokotixu.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 4

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_off0000b803.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB803 5664 bytes
SHA-256: 74458be780ac9db01a3561781ce90df64bf8d28ed86bd811f6272654a0430f2e
font_01_sfnt_off0000cb21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB21 14176 bytes
SHA-256: ae08045208144f19bd49be38a3bf3784976a031c2b754255ae0510b7ddb37ee7

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