Malicious PDF — malware analysis report

Static analysis result for SHA-256 018808c08f78fb38…

MALICIOUS

PDF

39.0 KB Created: 2020-08-23 15:21:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b353be5f163d353a1320ed68a7a562de SHA-1: a1e4b20e0d56929c042323de9d24896b9fda203d SHA-256: 018808c08f78fb38768ec23845fda79c927f8034a770e195ccc9f5889f768416
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to redirector infrastructure, designed to lead users to download software. The primary redirector URL is 'https://ttraff.ru/pify?keyword=autodesk+uninstall+tool+free', which is flagged as malicious. The document body, though heavily obfuscated, contains text related to the 'Autodesk uninstall tool free' lure, reinforcing the phishing attempt. The ML classifier strongly indicates maliciousness.

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=autodesk+uninstall+tool+free In PDF document text
    • http://poviwibi.sporkbooks.com/uploads/1/3/0/7/130740496/118692.pdfIn PDF document text
    • http://jigafutu.teannashantese.com/uploads/1/3/1/4/131454057/lulinowinefizowit.pdfIn PDF document text
    • http://files.ogilvies.scot/uploads/1/3/0/8/130873822/3082025.pdfIn PDF document text
    • http://rimupuk.feralaffairs.org/uploads/1/3/0/7/130738731/20c9801.pdfIn PDF document text
    • http://files.revelationofyeshuamessiah.com/uploads/1/3/1/6/131606262/valun.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/1/0432/6768/6558/files/temigoxugodotumixogofiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3010/1668/files/85974753571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1000/6940/files/18417348119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0459/6122/files/captain_america_civil_war_script_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7701/2373/files/lipid_lowering_guidelines_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7767/2868/files/america_s_history_8th_edition_online_textbook_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/15659410242.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 8

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_off00005ac0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC0 4952 bytes
SHA-256: 34608645287818da188ee9193ff57646513c0fe4e2b51c2dac22aeebc450867a
font_01_sfnt_off00006ba4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BA4 10496 bytes
SHA-256: e6b9c6b53d2762329c6c6940081d717bd4fef554b02c2ddfaf01e0cf6115e81f

Open this report in the interactive analyzer, or submit your own file for analysis.