Malicious PDF — malware analysis report

Static analysis result for SHA-256 1394a418a1f882cf…

MALICIOUS

PDF

44.9 KB Created: 2020-08-28 03:13:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6b9c280331ca8f4c39818f68c1a809a5 SHA-1: a5714c20b08fcf90c4d61a10018c1b6aa15f1f32 SHA-256: 1394a418a1f882cfa264e9a5c6a65972c28afe5a19bf56b34bf821ad1104bd0e
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and references a 'review', suggesting a lure to entice users to click. The presence of many links to external PDFs, some hosted on Shopify, indicates a link farm or SEO poisoning tactic to distribute malicious content.

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=rulers+of+evil+review In PDF document text
    • http://files.guyingram.com/uploads/1/3/2/6/132681596/3295852.pdfIn PDF document text
    • http://jirem.re-imaginekernow.co.uk/uploads/1/3/2/3/132302782/lejoxo.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/1/0432/4923/8179/files/25014344249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0316/6369/files/antique_olive_roman_font_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0609/1673/files/rixuzubijowax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4525/6344/files/takezenineru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1715/8312/files/picsart_apk_old_version_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4709/9290/files/jevujow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/estrus_cycle_in_rats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6823/5682/files/zevomapito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6881/6544/files/lexidoxifonelake.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_off00007396.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7396 4712 bytes
SHA-256: 28b9fe356ad06bed3a6320110d6c4098fe23b415a778368f71d120155a8dffcc
font_01_sfnt_off000083c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83C6 10388 bytes
SHA-256: 9ee00676e5270ccc54bbfe0164c160dabb01459cb52d6f13d75cbbcda7de4b0d

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