Malicious PDF — malware analysis report

Static analysis result for SHA-256 797c32e98562ab17…

MALICIOUS

PDF

49.7 KB Created: 2020-08-25 02:44:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d744bf7e7281f61eb3a7617846fe42b SHA-1: e74156b5f49a7a2cd9eff576645f1bc342429743 SHA-256: 797c32e98562ab17f4071fa52a6dabb338374e1197f2998d3639adea32fd1793
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which point to redirectors and SEO link farms designed to obscure the final destination. The primary redirector URL, 'https://ttraff.cc/pify?keyword=hollow+knight+game+guide+pdf', is flagged as malicious. This suggests the document is part of a phishing or malware distribution scheme, using a fake game guide as a 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=hollow+knight+game+guide+pdf In PDF document text
    • http://files.2redpens.com/uploads/1/3/1/8/131871740/ximilogupik.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5747/0872/files/fufiseze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1065/2317/files/nogezavibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7296/2203/files/5108076384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7628/0729/files/2228176899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4556/0219/files/67388291262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4255/9384/files/92706207032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9739/1261/files/wubimilipudasobesop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1605/1096/files/291340430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/2357484384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0588/5090/files/juwazorusapev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7098/0247/files/96158107173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pesaveput.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 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007734.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7734 5180 bytes
SHA-256: 8f1c59441a9d049a37dc768958f3d7a6d9104b6870f1937c26825b22bc19a3e8
font_01_sfnt_off000088bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88BC 10380 bytes
SHA-256: 6f6f8596bf4312f52d637da6c76c47129f42e5cf0bc7cf52b4af9811615a9238
font_02_sfnt_off0000abfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABFA 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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