Malicious PDF — malware analysis report

Static analysis result for SHA-256 026e65506df17cf3…

MALICIOUS

PDF

42.3 KB Created: 2020-08-27 21:03:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 59b30dc3794b4d263ac0342eda1e775b SHA-1: fc2b328fe0d1d2becac21761084e5f998e244ecb SHA-256: 026e65506df17cf3e4f17bac6c8b4347de9ddc2514cdc0fcb04e98b98c724814
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body and heuristics suggest a lure for free downloads, likely leading to phishing or malware. The presence of a link farm and redirector indicates an attempt to obfuscate the final malicious destination.

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=design+thinking+powerpoint In PDF document text
    • http://files.frostphysics.org/uploads/1/3/1/3/131378779/9520446.pdfIn PDF document text
    • http://files.tataoriate.com/uploads/1/3/1/3/131398140/fivuwomukoveges-jaropokudavu.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/1/0428/9835/8432/files/wonazonuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5465/2822/files/87878340583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9372/1255/files/rubank_elementary_method_clarinet_pd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9055/8622/files/75441964634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3791/7345/files/bowolumiwesasugadujumeto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9885/5837/files/gekumobeledavomagimika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tivaluzisezulumavolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3567/2219/files/gefaposage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0794/2549/files/disuxeruniruweravov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5161/4359/files/coldplay_clocks_acapella.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7084/7131/files/gujoteka.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F0 4992 bytes
SHA-256: 34956a71933e7cb86dd051c75fc02fb53b2170ba5b16a7e2b12692e97096db0c
font_01_sfnt_off00007904.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7904 10488 bytes
SHA-256: 492e5f2a6a5e174656ad0b47208c54cbb2dfd3dc277ca668871bb644975c096b

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