Malicious PDF — malware analysis report

Static analysis result for SHA-256 04c6dda55ac0e84f…

MALICIOUS

PDF

47.8 KB Created: 2020-08-13 00:03:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9e27797a4045cabdb32621ca2a8508b1 SHA-1: 90fbd1465bfa508c28bd5234bb1d576a5b0e3e06 SHA-256: 04c6dda55ac0e84f1e8adb9f1a802147c16196df7a30b32132c39fa711a6459c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically a redirector at 'ttraff.cc'. The document body, though heavily obfuscated, contains text suggesting it is a 'chemistry compound formula pdf' lure. The presence of numerous external PDF links, many pointing to Shopify, indicates a link farm designed to attract search engine traffic and potentially distribute further malicious 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.cc/pify?keyword=chemistry+compound+formula+pdf In PDF document text
    • http://monot.alwaysashleyemiko.com/uploads/1/3/2/3/132302720/e60f47e.pdfIn PDF document text
    • http://files.realfeelings.net/uploads/1/3/0/8/130873840/kovinidaza.pdfIn PDF document text
    • http://files.embodyheart.net/uploads/1/3/1/3/131381288/d40ddae3f4.pdfIn PDF document text
    • http://files.graysvarsitygreek.com/uploads/1/3/2/6/132695372/5280770.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/1/0431/7731/2411/files/zakumaxonudaratudavenegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4896/7063/files/38661131275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0028/2783/files/mimowupib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4759/8742/files/40089827757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1464/2069/files/blockchain_course_content.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9729/1942/files/understanding_comics_chapter_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5652/9565/files/kotor_2_nar_shaddaa_walkthrough.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5883/9198/files/2174373215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2349/0457/files/fiketivumenuxeji.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_off0000708e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x708E 5404 bytes
SHA-256: 45df8190fc7b08a9b1a3042b223e597a5d3319942336360729d9e0088e0078b4
font_01_sfnt_off000082ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82CA 14804 bytes
SHA-256: a380115abc8cbb45f396b67a1346c3aa1b996c3ff0ed0ae60669cee20d32d753

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