Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b26edf7b61e6411…

MALICIOUS

PDF

54.5 KB Created: 2020-08-07 07:34:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ddeae96e2ef9efe3bfea442de3d581c5 SHA-1: 3c397e57fa86e275073aad409743ad6d7a412e09 SHA-256: 7b26edf7b61e6411c191938338aa7af52dd680d0f5eecf2003ee5a1420236bac
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to appear as legitimate downloads but redirect to malicious infrastructure, specifically the 'ttraff.cc' domain. This indicates a phishing or scam attempt to lure users to a compromised or malicious site. The ML classifier strongly supports the malicious nature of this PDF.

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=avifauna+colombiana+ayerbe+pdf In PDF document text
    • http://files.semmuna.org/uploads/1/3/1/6/131606454/b6366972e8d4173.pdfIn PDF document text
    • http://files.gardenmda.info/uploads/1/3/2/6/132682293/9606263.pdfIn PDF document text
    • http://xufilo.isamurats.co.uk/uploads/1/3/1/4/131406717/a5aacdc0.pdfIn PDF document text
    • http://files.katherinemanaan.com/uploads/1/3/1/0/131070080/tewufal-satenuvode-jofixakamugi.pdfIn PDF document text
    • http://files.heartofasiatravels.com/uploads/1/3/0/8/130813111/2174998.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/1/0431/3815/4653/files/second_conditional_exercises_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8984/5671/files/75044732636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7107/6520/files/49082243829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/81967155738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xopafomapezujiwowab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2066/5510/files/82802995223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4968/0028/files/4223905149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6784/2459/files/double_column_cash_book_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7342/8888/files/mixededezanugawufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9073/8328/files/medicinal_plants_articles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4573/8903/files/youtube_to_mp3_unblocked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0989/9670/files/pases.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_off000093b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93B7 5412 bytes
SHA-256: 9ba8f558d070a98dc1592611392bafeed99ec167425c3aab611e7663cc029fc4
font_01_sfnt_off0000a615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA615 11464 bytes
SHA-256: 65101552c9e5d7e3239ba6b986fc0e77f2a85f083572d388793f9d3c49df97ae

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