Malicious PDF — malware analysis report

Static analysis result for SHA-256 769bf9f61ff773de…

MALICIOUS

PDF

41.8 KB Created: 2020-08-25 11:30:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bcbbc44f57ac1e9cd23cc2ce32e53ef0 SHA-1: 199e22edeac59e65e3ac1ebf17eb7dc083b520e8 SHA-256: 769bf9f61ff773ded4296bd6e68c91739c08613ff0a794c97116eb39a08d83ff
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link that redirects to known malicious infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, suggesting a phishing or scam attempt. The ML classifier also strongly flagged this PDF as malicious.

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=liszt+consolation+no+3+sheet+music+pdf In PDF document text
    • http://files.resourcesforthesoul.com/uploads/1/3/1/4/131452861/zewusanukafa.pdfIn PDF document text
    • http://tulati.capecurbappeal.com/uploads/1/3/1/4/131437119/fowifebidaxunufani.pdfIn PDF document text
    • http://files.theaustintexasteaparty.com/uploads/1/3/1/1/131164431/kilak.pdfIn PDF document text
    • http://files.cassandradenhartog.com/uploads/1/3/2/7/132712235/1894158.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/1/0430/2218/8701/files/kowekejobadezotugib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1420/1250/files/microsoft_activex_for_windows_xp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/0549/2638/files/nuwatoxifesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7985/1414/files/pabipegemigeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8362/0767/files/propiedades_del_salvado_de_trigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/15473195611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/23394697374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8042/4351/files/aladdin_2019_movie_in_tamilrockers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/7847/4917/files/grammar_and_spelling_correction_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6725/1617/files/vekog.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off00004ef9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EF9 5452 bytes
SHA-256: e979fb6601240c109bb34bbb9ffab90f4272773def6b188a602d67dfabb09a96
font_01_sfnt_off0000615c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x615C 10528 bytes
SHA-256: e74c97243b4db87f982eea01c6e7264d1575ed2f0d68ffce41d3a0edb7e02025
font_02_sfnt_off000084fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84FE 16120 bytes
SHA-256: 184efd0e138a9418359f6897f9ac56b5cd93cafbd57abf30711ac2aee7e18832

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