Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaa4d6994c4d1f48…

MALICIOUS

PDF

43.7 KB Created: 2020-08-09 07:05:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a0f7a09686f0e95105dfbf345bb7415c SHA-1: dc37858ec6da84b6eb3714b7da32070495109941 SHA-256: aaa4d6994c4d1f48e2245d9f173e477e20cce33a24fdd1085aa34d0245de9fcd
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to ttraff.ru, which is associated with malicious activity. Additionally, the document exhibits characteristics of a PDF link farm, with numerous embedded links to other PDFs hosted on Shopify, likely for SEO manipulation to increase visibility and traffic to malicious sites. The ML classifier strongly supports the malicious verdict.

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=yellow+submarine+ukulele+tab+pdf In PDF document text
    • http://files.yosoysantialva.com/uploads/1/3/0/9/130969306/rofapanajozadipamis.pdfIn PDF document text
    • http://wakoleg.laplatabaptistchurch.org/uploads/1/3/0/7/130776791/647339.pdfIn PDF document text
    • http://files.qacustomvans.com/uploads/1/3/0/7/130740211/5122821.pdfIn PDF document text
    • http://files.thevictoriafreehouse.com/uploads/1/3/1/4/131407459/kanetuberadode.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/1/0437/3400/7973/files/kuxazokezerirafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5110/5947/files/xiserimepavodanijutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3892/4181/files/jamegebozoxol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6243/5739/files/44094796253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4777/9494/files/realm_of_the_elderlings.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1751/7731/files/cells_and_their_organelles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6012/6118/files/ruburolirazanevowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1574/0314/files/zelazuradezasesonizimak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1761/6034/files/79030401421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0734/3772/files/nat_geo_magazine_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9482/7418/files/wofezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5555/4458/files/2055842983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8418/4728/files/85065294415.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 5

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_off0000613f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x613F 5444 bytes
SHA-256: 87f06070a460c811b9fc8fde8283c79acff1d176a7e896a1b154282c8f3c4d87
font_01_sfnt_off000073b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73B8 14632 bytes
SHA-256: 0a954821b8c5b2515d0f9950aa3040bc222fc79279669175c95765f377d2f881

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