Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc0924376af698ba…

MALICIOUS

PDF

32.2 KB Created: 2020-08-24 20:21:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3a5154dbed7f6ca39b02a88b5453893e SHA-1: 3d78e084f14b8316b72123af89119673f6d2cd50 SHA-256: cc0924376af698bace3731557c87ab71375729338ec9ab9275550a6712f262a9
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links pointing to various PDF files, a technique often used to create link farms for SEO manipulation or to obscure malicious destinations. One of the primary links directs to a known malicious redirector at 'https://ttraff.com/pify?keyword=fly+sheet+k2'. This suggests the document's purpose is to redirect users to potentially harmful content or phishing sites.

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.com/pify?keyword=fly+sheet+k2 In PDF document text
    • http://files.sdadata.org/uploads/1/3/0/7/130776728/vebuzarejutawe_wuzakase.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/1/0436/0568/8483/files/caesar_ii_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8956/7650/files/nijiniremobidejuzopur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7141/3155/files/39570544498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/kubibexol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5326/0700/files/coraline_full_movie_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/4895/4006/files/63897067745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2354/9094/files/golavisatajebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7931/8166/files/plano_turistico_cartagena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2518/6466/files/wiwebebufodetorajubit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/sparknotes_romeo_and_juliet_act_4.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_off00004473.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4473 4720 bytes
SHA-256: 5fe7424918e842859e04aabf0e5e1f9b542c7b8feb765efe58511dd2dc25fba6
font_01_sfnt_off0000548c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x548C 9464 bytes
SHA-256: 6901cd253f7333ba502891dcaa2c31db23c52acfcb7329f3cda0aafcb314cbd9

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