Malicious PDF — malware analysis report

Static analysis result for SHA-256 9616e8785067f4cc…

MALICIOUS

PDF

32.6 KB Created: 2020-08-23 23:33:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9bf19ecd4dd98e1ac8255cd6f347a070 SHA-1: 0e839b731f8741245daf13211087235eb845f3eb SHA-256: 9616e8785067f4ccc47bdd6b451a24ca58083c14ddc9a840d55c401159b46e6c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=because+beatles+acapella+sheet+music'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious redirector URL indicates an attempt to lead the user to a harmful destination, likely for further exploitation or credential harvesting.

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=because+beatles+acapella+sheet+music In PDF document text
    • http://files.anahatahealing.net/uploads/1/3/0/9/130969761/vevejizo_mubekabuf_vesed.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/1/0440/3272/1046/files/41354623650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3173/3159/files/ravovixogifefisimunelinaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0168/2843/files/organelles_and_their_functions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5685/5190/files/72565177276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/binoluso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/purubed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7751/6955/files/abecedario_minusculas_para_imprimir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/57133756779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8136/6685/files/girebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5056/4773/files/dnd_5e_player_s_handbook_color.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9635/8565/files/miraxokonirikureru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7353/6161/files/28351680818.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_off00004158.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4158 5268 bytes
SHA-256: 728787c4fe74683c122d9d7282d7144d6451302c403aaa963e4e4315b6937d89
font_01_sfnt_off00005316.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5316 10152 bytes
SHA-256: f5eef0c8ac5a1bb554854c633079c93d4d07c3c6c6c8d36c3ad7f856484f2bde

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