Malicious PDF — malware analysis report

Static analysis result for SHA-256 4306b2c19833c771…

MALICIOUS

PDF

43.1 KB Created: 2020-08-25 16:50:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2de2dc08f58a6dcca24e07dd90b510d7 SHA-1: f3f32fc0b54f3218bb938e582e756633c92ae880 SHA-256: 4306b2c19833c7717fb2ee11ed0a5e40112c98dd4bd7736598b24e9cf342085b
194 Risk Score

Malware Insights

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

The PDF contains a prominent link to `https://ttraff.com/pify?keyword=current+week+number+google+sheets`, which is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and numerous other links to PDF files hosted on `cdn.shopify.com` and other domains, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly indicated maliciousness, supporting the conclusion that this PDF is designed to redirect users to harmful 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.com/pify?keyword=current+week+number+google+sheets In PDF document text
    • http://files.clucasart.com/uploads/1/3/0/9/130969655/susadugojaposegax.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0802/3966/files/libro_anderson_estadistica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0035/2167/files/worry_free_money_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6951/2607/files/kambal_katinig_worksheets_for_kindergarten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5025/3979/files/devejugumilukupelino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2216/1832/files/dibujarte_coleccion_completa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2478/5319/files/bar_keepers_friend_msds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1829/6228/files/4205123198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7617/2441/files/amoeba_sisters_video_recap_of_osmosis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9015/7473/files/46116074663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2290/7549/files/182938954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2440/8991/files/newufikafusijabod.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D1E 5040 bytes
SHA-256: b42f7be2529f2b098253ce67085a853648bbf9743bfb1f7ce385e522b4b5ba98
font_01_sfnt_off00006e30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E30 10364 bytes
SHA-256: ae3862405cf4ec522bd90caeca8b69ec29a888373aad09a55ca99131b9961dbc
font_02_sfnt_off000091b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91B1 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

Open this report in the interactive analyzer, or submit your own file for analysis.