Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbbe384c41da8a53…

MALICIOUS

PDF

45.5 KB Created: 2020-07-31 07:33:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8f2640134eec16a9ba8918ebbef76ef7 SHA-1: 80f76b45fe9fb4a008d6a3d76f8749bcd6c9f1a1 SHA-256: cbbe384c41da8a531e5e8fcf7480aed59f33ba9dcee53201588123a7f9e676e2
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. One of the primary links, 'https://ttraff.ru/pify?keyword=breakthrough+basketball+rebounding+pdf', is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to 'breakthrough basketball rebounding pdf', indicating an attempt to disguise malicious content as a useful resource. The presence of a link farm further supports the malicious intent.

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=breakthrough+basketball+rebounding+pdf In PDF document text
    • http://files.wildlilacdesigns.shop/uploads/1/3/0/8/130814535/rorasedemirum_morez_tudabapelikowi_jamomefafefil.pdfIn PDF document text
    • http://files.afropanamanian.com/uploads/1/3/1/6/131606349/e7c52b788f10ed9.pdfIn PDF document text
    • http://files.brazilian-samba.com/uploads/1/3/1/4/131453536/4033033.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/1/0431/5696/3479/files/64545740748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3798/2869/files/xomoviwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gofifarigomikidapowokov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8846/8376/files/71583386728.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2574/4547/files/womuxolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4704/2728/files/petobikejogirun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6265/6165/files/juninuzibixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7133/1734/files/jusavik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/xapejivitumomulapekawus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6440/9764/files/56735251570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3892/4181/files/79414364675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7927/9527/files/zedabuxozusavudoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3942/4669/files/nukivikutenujit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5122/0120/files/limevotuvawedodefizebel.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_off000072dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72DC 5440 bytes
SHA-256: 91eaeeebcd33edff242666c822a6880eaf3de8de2be82f728328abaa392b30d6
font_01_sfnt_off0000854a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x854A 10328 bytes
SHA-256: 6e812109e829bc7efb7af1ffce43e717b3cd56635efefe0129a108d388ef4d4a

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