Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0e73d00f41dc2a6…

MALICIOUS

PDF

49.4 KB Created: 2020-08-08 07:31:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 889aaf35b0c89306dd2561a65ee6a4c6 SHA-1: 247f15df50097bd9477da1fba3eb3da089cce810 SHA-256: c0e73d00f41dc2a65add465334fb683bf3bf74b09c2e671f0cfb5524c4c82b53
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL, 'https://ttraff.ru/pify?keyword=livro+sobre+o+meio+ambiente+pdf', is designed to redirect users. Another heuristic indicates a link farm, with many links pointing to Shopify domains, one of which is also present in the document body. The document body itself contains obfuscated text and the malicious URL, suggesting a lure to download a malicious file or visit a phishing site.

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.ru/pify?keyword=livro+sobre+o+meio+ambiente+pdf In PDF document text
    • http://files.encorecarpetcare.com/uploads/1/3/0/7/130739542/kepajiduziva.pdfIn PDF document text
    • http://files.mintaddition.co.uk/uploads/1/3/1/6/131636903/7175770.pdfIn PDF document text
    • http://files.circleoflightmassage.com/uploads/1/3/0/7/130775441/zimusigobuxid-koropof-gevabez-bozesebosuz.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/1/0433/1290/6405/files/nuwitetemalidebivor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9664/6556/files/how_to_marry_serana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9877/6487/files/powabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6006/7480/files/wizujumun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9378/4728/files/guxemovawuxim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wawufomujemozinabewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7275/7670/files/44383153715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/24622392042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8494/8380/files/41154162780.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7679/4021/files/rudesetapafuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0975/9640/files/fifuduropuvasixi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71D6 5084 bytes
SHA-256: 906cb2313301438eec2df3a09a1aa7165acc3258f54ef0e336550d9df6833b0e
font_01_sfnt_off00008303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8303 12528 bytes
SHA-256: 149bb4919c350e0da99b8565f47a955291bff963bfbdc141b241e5bd534bcfde
font_02_sfnt_off0000a904.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA904 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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