Malicious PDF — malware analysis report

Static analysis result for SHA-256 24651562cc9d6ad0…

MALICIOUS

PDF

50.6 KB Created: 2020-07-29 23:11:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03285930bcffe243f8447ab574e71a8e SHA-1: b0fc9c66f42d84e8c6e65367c34f87bb822ec112 SHA-256: 24651562cc9d6ad03581697357cda476923c5936ca0995e1cdbae4918596fc0a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, which points to 'ttraff.ru'. This indicates the document is designed to redirect users to malicious infrastructure. Additionally, a PDF link farm heuristic suggests the document is part of a larger SEO poisoning effort to distribute malicious files. The ML classifier also strongly flagged this PDF as malicious.

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=arenas+movedizas+libro+pdf+gratis In PDF document text
    • http://files.belaccommunications.com/uploads/1/3/1/4/131437158/9955582.pdfIn PDF document text
    • http://files.portlandcommunityfund.org/uploads/1/3/1/8/131871569/kevuseten.pdfIn PDF document text
    • http://files.azpeorialodge31.org/uploads/1/3/2/7/132740978/9540137.pdfIn PDF document text
    • http://files.shoprebelheart.com/uploads/1/3/0/7/130776265/voranizavoxilav.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/1/0431/2891/4074/files/ledukokakazodas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/buxigol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1510/0826/files/68210927480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6550/6966/files/86762934162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7829/5450/files/befusevatarunuvuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4077/6090/files/68546135351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2900/2390/files/87362576004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9805/3535/files/85012268094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0210/8836/files/bisilimirorutofozunimedif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6340/2905/files/moduzoduwev.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_off000084e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84E2 5388 bytes
SHA-256: 878a0f00664134aee12f45ca67f50083b40c619ba17f0b23a61dd6022108d8b3
font_01_sfnt_off00009723.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9723 11268 bytes
SHA-256: 9f4260c0c24bd3695c06ec4cfd911da7557700b56afb99ccbc67d68c272fa9ef

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