Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff4cf471d5bcaabf…

MALICIOUS

PDF

50.4 KB Created: 2020-08-25 17:50:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5bfebd70a8717e023c210978d6625492 SHA-1: a3bc839eee110cc4b6f8601e6954699d7742475e SHA-256: ff4cf471d5bcaabfe187a7db71f65dd3dead49b7218afcbe00ffcf8511f3f0cc
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. This URL is presented to the user as a list of cars compatible with Android Auto. The PDF also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO poisoning tactic. The primary malicious URL is 'https://ttraff.ru/pify?keyword=android+auto+app+compatible+cars+list'.

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=android+auto+app+compatible+cars+list In PDF document text
    • http://wudefirof.dontbeacrashtestdummy.com/uploads/1/3/2/7/132740285/jozuj-zuguzun-jebevo-wimuvitosu.pdfIn PDF document text
    • http://files.mildlyadventurous.com/uploads/1/3/0/7/130775171/8081846.pdfIn PDF document text
    • http://wawatuwew.downtownmiami.net/uploads/1/3/0/9/130969742/35688075e85df.pdfIn PDF document text
    • http://files.uclagoingglobal.org/uploads/1/3/1/4/131452733/tutajomajaz-wenoneno.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/1/0434/8795/3062/files/16836582845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0942/6079/files/97309059316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1302/0570/files/96314034472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9199/2480/files/pipebomereda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7623/1072/files/vigabafixizubupes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/pajepisipovadoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9856/1959/files/approved_document_b_volume_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3852/3047/files/sizigababalugukudewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0079/9140/files/laziximanumoxulixomama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/ed_miracle_shake_reviews.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5706/9721/files/36714477191.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_off000086ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86EA 5348 bytes
SHA-256: 1829f36d2ef18e7da9c8f58f430d26b79bba74247ab82b78d6c0b6695dfa8810
font_01_sfnt_off000098ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98EF 10364 bytes
SHA-256: 5e278b8efc6ed1101c8a9651cabd3482c112bdb1c47ab48a3b458de7df5db6e9

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