Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8bc0c84316a09e1…

MALICIOUS

PDF

44.4 KB Created: 2020-08-23 23:59:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60016c3c95a4bb8e7f4d3a6a67aa6462 SHA-1: ebc69a15c13d63cbd3f27acc26353f778c0391b6 SHA-256: e8bc0c84316a09e1f4496ce1776d197dd3dcc6723a61460469f6bdaaadb6cd64
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources, a technique often used for SEO poisoning or to obscure malicious destinations. One critical heuristic firing indicates a direct link to known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=connect+financial+accounting+chapter+3+answers'. The document body, though heavily obfuscated, contains text related to financial accounting and the malicious URL, suggesting a lure to trick users into clicking the link under the guise of finding answers. The file is generated by wkhtmltopdf, a tool that can be used to create PDFs from web content, further supporting the idea of a web-based lure.

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.cc/pify?keyword=connect+financial+accounting+chapter+3+answers In PDF document text
    • http://rivakara.businesssolutionsbydesign.com/uploads/1/3/1/1/131163635/8644589.pdfIn PDF document text
    • http://files.asttowing.com/uploads/1/3/1/4/131438379/lawin-rikixegowudi-kusunego.pdfIn PDF document text
    • http://fubavata.glfenterprisesstone.com/uploads/1/3/1/1/131164406/lasodafotis_fozodopo_tinatizozatevaj.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/1/0428/9835/8432/files/50878135704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5465/2822/files/original_1830_book_of_mormon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0545/1174/files/72560681262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/3948/9953/files/47115959415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9888/9635/files/velotaluwodikarakipexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3264/0679/files/67366530753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2297/4117/files/31018122193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6646/6216/files/fejajepipinajoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0707/4723/files/15193729192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1627/2547/files/information_literacy_definition_government.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4423/9510/files/mevuvef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5623/3638/files/41869465308.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 4

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_off00006e29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E29 5440 bytes
SHA-256: f998a7332374024a5944080c4bd8cebbca414b2fe986c3ac38bc8b85b2d8cc7a
font_01_sfnt_off000080b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80B1 10488 bytes
SHA-256: fc0847a09c0e8f39d45165409ac8cff220b935bb61a77b0fce80a8b4aac8f75f

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