Malicious PDF — malware analysis report

Static analysis result for SHA-256 192c9e7c7cf99d81…

MALICIOUS

PDF

51.1 KB Created: 2020-08-02 19:53:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 307e3675c0970c740713847cbadb1ceb SHA-1: 2fb19451f659f4f0fe11f57fdd88a7d40d28bf01 SHA-256: 192c9e7c7cf99d81cd8ebe7153c4cf7058e3cbe2b1e23627cefc0a75fdfaf8fd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=ashly+dupre+playboy', which is flagged as malicious. It also hosts a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly indicates maliciousness, and the overall structure points to a phishing or malware distribution lure.

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.ru/pify?keyword=ashly+dupre+playboy In PDF document text
    • http://files.messyhairmountain.com/uploads/1/3/1/0/131070362/reruf.pdfIn PDF document text
    • http://files.pickfordlibrary.org/uploads/1/3/0/9/130969580/85e737821.pdfIn PDF document text
    • http://files.corinewood-donnelly.com/uploads/1/3/0/9/130969298/d1051.pdfIn PDF document text
    • http://files.kelseyskeys.com/uploads/1/3/0/7/130738657/futifi_mobanadawaf.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/1/0434/6285/2773/files/juveludapulanamojirovur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1825/5510/files/70264674283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0342/8510/files/33382932757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2969/1558/files/nukewukijotekebux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7935/1976/files/52215373030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0930/8829/files/24705769232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5891/3689/files/54024531686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1379/9066/files/metukowotefefuxesapunep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9508/1625/files/saxitazawirividuxufufik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/5409/1675/files/tweaking_windows_repair.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 7

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_off00008a88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A88 5276 bytes
SHA-256: ccfa9ec1f1f9aebc3075a6c59c4c9e5c3627181f2833092d376d564fb7f1aabb
font_01_sfnt_off00009c70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C70 10316 bytes
SHA-256: 341b46cafcc4a81610fb1bb07f5906e9a37af1d1d45207ca44eafea6280aec94

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