Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb093a1e5f3c5bde…

MALICIOUS

PDF

40.1 KB Created: 2020-08-02 21:51:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 11cc58c66d4f2b6e89bec09b11541954 SHA-1: e497efc271f73227079a0a8eafdb9cde12f8ca7d SHA-256: eb093a1e5f3c5bde69d413876fd4d60a8b4e47ee4112ab29388ea80ef244e200
194 Risk Score

Malware Insights

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

This PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=rang+and+dale%2527+s+pharmacology+pdf'. The file also exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be luring users to click on the malicious redirector URL embedded within the document.

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=rang+and+dale%2527+s+pharmacology+pdf In PDF document text
    • http://files.grahamwilliams.net/uploads/1/3/2/7/132741389/2510993.pdfIn PDF document text
    • http://files.thepartitionarchives.com/uploads/1/3/0/7/130738615/tuwowawan_zumuv_figokopediwa_ralilek.pdfIn PDF document text
    • http://files.nbyrdhall.com/uploads/1/3/1/3/131384025/9222277.pdfIn PDF document text
    • http://files.dramaturgiesofparticipation.com/uploads/1/3/2/6/132681901/misinadov_redekisaxukodev.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/1/0435/2176/9627/files/nikon_p510_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4677/3660/files/19497824521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6545/8336/files/pafafuripukevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39086675177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2962/4992/files/238955014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1325/7885/files/seropuxavunese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3331/1904/files/salodojukemupofigeladegir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4732/9702/files/30949318614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0638/5568/files/kutejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6676/9051/files/jepotelelazuxuram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9009713252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9275/5111/files/nifadufuvudigowiz.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_off00005cdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CDD 5712 bytes
SHA-256: 5e7326be3bead7afcd40d353e978fd6d8ffd888a3d71306b67129886ed51bb66
font_01_sfnt_off00007045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7045 10240 bytes
SHA-256: e8bb7c4f99b78231b6305c00acc775dc2226a1119f1b25203db578469432d8c2

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