Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a8572cdfa4e6ab3…

MALICIOUS

PDF

40.2 KB Created: 2020-07-31 21:40:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d591266a3d95bde1488986d2d79de9ab SHA-1: f03964d119157387079c5df7ada5e7521ee4361d SHA-256: 6a8572cdfa4e6ab3136c42229177ee43493f61731358de17dfda5fc08865d7d5
194 Risk Score

Malware Insights

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

This PDF document contains multiple embedded links, many of which point to a redirector service that is known to host malicious content. The document body, though obfuscated, contains a URL that is also used in the redirector, suggesting a lure for downloading potentially unwanted or malicious files. The ML classifier strongly indicated maliciousness, and the presence of a redirector link confirms a malicious intent to obscure the final payload destination.

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=adobe+illustrator+cs2 In PDF document text
    • http://files.vinecourtphoto.com/uploads/1/3/0/7/130740483/mided.pdfIn PDF document text
    • http://files.mountainstatetextile.com/uploads/1/3/0/7/130776381/korebepikigajog.pdfIn PDF document text
    • http://files.ibbeautiful.org/uploads/1/3/0/9/130970016/fasujanu-sinirifaj-zefakajupa.pdfIn PDF document text
    • http://files.gloriamindock.com/uploads/1/3/1/8/131871625/00c5aed92c795.pdfIn PDF document text
    • http://files.coastaldryhome.com/uploads/1/3/0/7/130739212/fedig_famita.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/1/0435/2193/3466/files/2381888091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8131/0114/files/69557944683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1995/1513/files/85737827565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7865/5903/files/saxejojesisowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0939/1261/files/27246531259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5852/7397/files/pineze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0147/8300/files/poxojopexoxirub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/tosumakujesibisolovif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1274/3591/files/bamesexowujevatawoza.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_off0000602b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x602B 5196 bytes
SHA-256: 063cff3bcbcfe6425042f83e9803c23dc79de0e0685966ef67a79b70eb5ae694
font_01_sfnt_off000071de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71DE 10100 bytes
SHA-256: 2a545ec2bf2a25ab8a0092ff7ab5d3c86513fa4d9b645f61a9b0fb7c51a26268

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