Malicious PDF — malware analysis report

Static analysis result for SHA-256 865dd9a6ebab21b3…

MALICIOUS

PDF

45.6 KB Created: 2020-08-25 11:19:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a155d0f66a99130b9f618990aaa1f3e0 SHA-1: 2e988d6d2e3a18d796c987ad162823c4ce0d9fd0 SHA-256: 865dd9a6ebab21b3c912faaed804714f34a569b1fee8f81202aef1cf0cb05996
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service that is flagged as malicious. The document body, though obfuscated, contains a URL that is also present in the heuristics, indicating a phishing or scam attempt to redirect users to malicious content. The presence of multiple PDF links suggests a link farm or SEO manipulation tactic.

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.com/pify?keyword=cadillac+srx+2007+manual In PDF document text
    • http://fijen.lifeafternarc.com/uploads/1/3/0/9/130968979/2097f9af.pdfIn PDF document text
    • http://files.gardenspotrentals.net/uploads/1/3/2/6/132681938/finefenusavat.pdfIn PDF document text
    • http://files.backcountrywinery.com/uploads/1/3/0/7/130775062/soruwasam-pagedevokuwo-bokugiratasob-mowelabu.pdfIn PDF document text
    • http://metigikiw.adventuresatyourdoorstep.com/uploads/1/3/0/7/130740572/9585232.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/1/0429/2149/2643/files/negative_adjective_prefixes_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1789/4050/files/logakiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9658/8967/files/jufotesolajifop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6159/9656/files/41834395972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4481/3470/files/45385173698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3876/8294/files/51057585004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/36990719879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6858/8194/files/kebowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7745/2454/files/dikavepulaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6175/5560/files/61789854316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0193/6033/files/nikavazudidukutemarul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9515/5105/files/advocare_24_day_challenge_journal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0462/3010/files/kajegidusumo.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67A8 5104 bytes
SHA-256: 7249d10ce1e73f45d45a9cb998caa9940c32d6f48c34db15f4027e7a4e97463e
font_01_sfnt_off000078d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D7 10192 bytes
SHA-256: 331510d1fa2a815535edc435b12f9f94fa9b7b3517592616efc3a7ee7cf0ac27
font_02_sfnt_off00009bab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BAB 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3