Malicious PDF — malware analysis report

Static analysis result for SHA-256 84ea6ba0b3d0fe45…

MALICIOUS

PDF

40.0 KB Created: 2020-08-19 00:48:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3aa12149b28a0ee456f15cf89f3e624d SHA-1: 7c5c2c7fdddb29f37cdd294d38e19a5e02beb30e SHA-256: 84ea6ba0b3d0fe45d952e7e7aeaa72daa4a1cef5868c0ca11e4339ad798ee83c
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it's a malicious redirector, specifically designed to lure users to a malicious link. The embedded URLs and the document body text point towards a phishing attempt disguised as a technical document. The ML classifier strongly supports the malicious verdict.

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=a1244+transistor+pdf In PDF document text
    • http://files.tonycovena.com/uploads/1/3/0/7/130739131/062a96.pdfIn PDF document text
    • http://nimutilaj.envirohealthuk.com/uploads/1/3/1/6/131606354/2378461.pdfIn PDF document text
    • http://files.meanqueensitka.com/uploads/1/3/0/7/130776363/godizadabi.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/1/0437/6880/7578/files/recuperare_chat_whatsapp_cancellate_android_senza_backup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3220/4696/files/46565152391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9748/9572/files/jejunarinujafeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9120/5021/files/xekegumafelikuvelogex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39843759369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/2007_yamaha_v_star_650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3004/5084/files/39209139981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9469/5329/files/37656516781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5621/7750/files/82234028644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4210/2679/files/dowakirexexalazix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/kixulesare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7389/6615/files/os_axiomas_de_zurique_completo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3789128943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kupenase.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 1

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_off00005425.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5425 5264 bytes
SHA-256: 7e56755d61030a4b755cd6138c30dc7a5332d7f4988580721e312a9160ce7e87
font_01_sfnt_off00006619.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6619 14744 bytes
SHA-256: 918c9de18437b7ea460bb71e367da922ff95337ce22cbb84bb4fad4d5d83e380

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