Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc4fb0f1e3c49dff…

MALICIOUS

PDF

43.4 KB Created: 2020-08-01 20:20:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f897f8d57153fc376a951e3804af4926 SHA-1: b8ecd0cd169b76b4c75dfb50dbd94f5d2ba0af11 SHA-256: bc4fb0f1e3c49dff7dc9af24ad5d0193a88280dbf7b0f6a6ec235015e50b5074
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many of which are part of a link farm hosted on Shopify. One critical heuristic identified a direct link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=python+file+exists'. This suggests the document is designed to lure users to malicious websites, likely for phishing or malware distribution.

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=python+file+exists In PDF document text
    • http://files.deefacepaint.com/uploads/1/3/1/8/131856134/sijenekuzo-kenos-vivam-sivumaxa.pdfIn PDF document text
    • http://files.tiffinjourney.com/uploads/1/3/0/7/130775215/5171468.pdfIn PDF document text
    • http://files.whynotpromoshop.com/uploads/1/3/1/1/131164350/foboxokemugol.pdfIn PDF document text
    • http://files.monicasscarfs.com/uploads/1/3/1/4/131437702/4260854.pdfIn PDF document text
    • http://files.azeetanielsen.co.uk/uploads/1/3/0/8/130874501/peraxaso.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/1/0433/6196/0091/files/simabukabemugaduzavuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1195/5098/files/92348036329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7963/8942/files/80273122932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1070/9915/files/77934997136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2466/2173/files/54220543827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9819/3566/files/3322253705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4433/8838/files/65083525260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8638/0189/files/tebobirapum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4459/2021/files/23762241498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6961/0907/files/34976025434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6116/5723/files/jemojajitikasirazujatus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6208/4262/files/wekelanuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/vujubedodokemunogiz.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 8

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_off00006e45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E45 4720 bytes
SHA-256: 837b97ef978c04474b4a2ccf7dac3ee1b149b11998f4f9d2994b82cc92c47cb5
font_01_sfnt_off00007e69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E69 10008 bytes
SHA-256: 3b084d1c362e20db0acd1b972f12491482eabe05332c92282c02065608481b34

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