Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6f267c3cf0c2a5e…

MALICIOUS

PDF

46.5 KB Created: 2020-08-17 13:11:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5446f47189c21ba29d3f9e34b0729d68 SHA-1: 742925985df284611c9008e59e856b2748fd7981 SHA-256: c6f267c3cf0c2a5e6feecba7e650a2f60795f777e42770049c3e0e611e87c090
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious infrastructure, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. The document body, though heavily obfuscated, contains the malicious redirector URL, suggesting an attempt to lure users to malicious content under the guise of 'ergonomics furniture design'. No scripts were extracted from this sample.

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=ergonomics+furniture+design+pdf In PDF document text
    • http://files.simcoshelties.net/uploads/1/3/2/6/132681992/jopekud-zobaledujelulud-zifuj.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/1/0429/9787/4851/files/elna_sewing_machine_parts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4512/5281/files/iron_maiden_wasted_years_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bodadajigewodozisidezufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4973/8650/files/15753105715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0145/4500/files/84436610348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3685/9813/files/zifolejodinimadol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4956/5853/files/20339631607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8942/0695/files/80371532719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/diagnosis_of_hemolytic_anemia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8955/8680/files/10917598724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0142/9662/files/73493822873.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_off00006537.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6537 5072 bytes
SHA-256: fc743792e37435428e46e025602e037aff85ed25495a2f70eb6559a9dfb18c88
font_01_sfnt_off0000765a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x765A 12552 bytes
SHA-256: 2c239ad5d1b2f6ce61b786759bca52e1d2ded5a54562f42d0c2e390b554514f1
font_02_sfnt_off00009f40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F40 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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