Malicious PDF — malware analysis report

Static analysis result for SHA-256 05cec256a36109c9…

MALICIOUS

PDF

41.1 KB Created: 2020-08-09 11:25:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7eccebe736f48c430a0f0d1033c9cbda SHA-1: bcf590d87f14252e2b1d0828ce2da5023bbc01b7 SHA-256: 05cec256a36109c95635e2d6b8fabd1c47ba5640bebe6de5fdb492f18889dba3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links, including one to a known malicious redirector at 'https://ttraff.cc/pify?keyword=frutas+antioxidantes+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users to malicious infrastructure. The presence of a large number of external PDF links further indicates a link farm or phishing attempt.

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=frutas+antioxidantes+pdf In PDF document text
    • http://files.alexbuehler.com/uploads/1/3/2/6/132681910/f11987.pdfIn PDF document text
    • http://files.amyandomidphotography.com/uploads/1/3/0/8/130813757/cd788a4e.pdfIn PDF document text
    • http://files.shantivillainstitute.com/uploads/1/3/0/7/130739525/c625784399bb0.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/1/0428/6906/3836/files/pusovumukewigaraxutoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9228/5342/files/85242822808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0808/9499/files/3669407281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2309/6216/files/xevuwexurifewukopidebivut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9254/8515/files/the_rodeo_song_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9749/6488/files/thyroid_nodules_ultrasound.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5326/0706/files/gurezowofemisano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8394/6397/files/marazuzafudire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/sijemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8320/9631/files/zitiwofidatib.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 7

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_off000061a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A3 5024 bytes
SHA-256: 4cca555128396ec8be3a8ab43e94d88ca9b7e05b4e83a3ad64c0a8916ec5b608
font_01_sfnt_off000072cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72CF 10992 bytes
SHA-256: 89a57388719311af065ad7d7dae54de1189154cc2649ea53f5fa11f9b1939782

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