Malicious PDF — malware analysis report

Static analysis result for SHA-256 448b227e706cb523…

MALICIOUS

PDF

37.0 KB Created: 2020-08-14 17:08:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 573d8126c3c3ed46e285ba0cb3b11dd3 SHA-1: fcb06987c721c12d0342749b3b8c8a82f3559362 SHA-256: 448b227e706cb523b4775b405498799f7395e98cade8b719901f5f0d76a5fccb
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a 'soundtrack zip' file, which is likely a social engineering tactic to entice users to click the malicious link. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content widely.

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=fooly+cooly+soundtrack+zip In PDF document text
    • http://vizanedow.mariaevagorou.com/uploads/1/3/0/9/130968921/9575208e51793.pdfIn PDF document text
    • http://files.goldencrownrealty.com/uploads/1/3/1/4/131438180/6c1e4b8b3.pdfIn PDF document text
    • http://volokivu.daytonis.org/uploads/1/3/0/7/130738894/d13d3.pdfIn PDF document text
    • http://files.abidingwordct.org/uploads/1/3/0/9/130969390/fb544debd5f4551.pdfIn PDF document text
    • http://files.josephhouckmusic.com/uploads/1/3/1/4/131483830/6911527.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/1/0433/0687/7080/files/wixedazatujiguxup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dokole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/14550759222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4754/2175/files/fumakafafemanibiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/jopofok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7062/7735/files/cerebral_venous_thrombosis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1086/7871/files/wibasaletoxemajizedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5211/2804/files/22842349671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0304/3230/files/kimifuvemixixuxoradatajuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5108/8034/files/kusisidefusodomewib.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 1

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_off00005320.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5320 5240 bytes
SHA-256: 39c8844f34c4afc24b9a9c376d6734621df13348b266afff97af2ed9c6a8a44a
font_01_sfnt_off00006511.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6511 10084 bytes
SHA-256: eb38202563e6e76852edc9f2ed6a1e3187b8ce6c772130e9ccd0b2b8704e44f7

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