Malicious PDF — malware analysis report

Static analysis result for SHA-256 6774770f6b0b7c8d…

MALICIOUS

PDF

66.3 KB Created: 2020-07-31 07:54:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d3d185c29e69997f2931b5ac59095c78 SHA-1: df763abc1b4809e6b7d7fe3c12e88e1bf44c75ef SHA-256: 6774770f6b0b7c8d99b74794f0157cef6eb71da1c29beec33252da2896c475da
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics. The document body, though heavily obfuscated, suggests a lure related to 'business growth definition pdf'. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be spearphishing, with the PDF acting as an attachment designed to redirect users to a malicious site.

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.com/pify?keyword=business+growth+definition+pdf In PDF document text
    • http://files.squareonegoodsco.com/uploads/1/3/2/8/132815154/tasawaz.pdfIn PDF document text
    • http://files.dndforwomen.com/uploads/1/3/2/7/132710627/xulisaxisilijibovidi.pdfIn PDF document text
    • http://files.psi-loveu.com/uploads/1/3/1/8/131856392/xawijasupi_zesugol.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/1/0430/9316/4181/files/tozafusiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5933/9679/files/79200221588.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2671/6584/files/84011873204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6806/2872/files/nanorokoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1245/4560/files/26273824408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2834/9085/files/3528286813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/79894841610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1274/3580/files/42682432685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/67260986474.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7818/9205/files/92477397460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13879903487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4619/9711/files/fidinumonafepomeraka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1239/6968/files/20166021040.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_off0000c6b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6B6 5084 bytes
SHA-256: 875edffe6d0c17d0242d55fe80aca519f3409f4068aa0d807a11131757f0f0e2
font_01_sfnt_off0000d80b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD80B 10452 bytes
SHA-256: 7bd8c7841c43423b20b05d16f63ec2f896788ca698207a8e9f9e0994f5df20dd

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