Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f22fc9fc8721b23…

MALICIOUS

PDF

41.8 KB Created: 2020-08-17 05:05:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8caf01a5c0b9f7b42f275cc574e4b0fd SHA-1: 731c0e72ecf13fa2ba79930dd24d9a24874d9b4c SHA-256: 6f22fc9fc8721b23e6a6d1e676f9e0ee7f1c8de68873cf28cba70de8303c4b5a
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 a link farm designed for SEO manipulation. The document body and heuristics indicate a lure for a 'Spider-Man 2 APK' download, which is a common phishing tactic. The presence of multiple PDF links and a redirector suggests an attempt to distribute malware or lead users to phishing sites.

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=spider+man+2+apk+free In PDF document text
    • http://files.youroasis4health.com/uploads/1/3/1/4/131406663/ziwixol-tevazafulenuxe-lirefam.pdfIn PDF document text
    • http://files.paradives.net/uploads/1/3/0/9/130969097/foparotonali.pdfIn PDF document text
    • http://files.bikerbabesoaps.com/uploads/1/3/1/3/131380916/tebilimebufi_vawesajuwov_xapenefa_xowoxa.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/1/0432/1555/2672/files/kaxafigeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8983/6697/files/hs_code_singapore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0961/3725/files/59225591013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0482/9602/files/7332709455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4077/5064/files/81271848712.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5863/3631/files/25433886380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4361/8965/files/1473136294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1392/1175/files/60952165997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8801/8594/files/rawujikifasasaperinemozef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1254/6975/files/2004_polaris_sportsman_500_service_manual.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_off000060c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C7 5276 bytes
SHA-256: 584f476dbbcf289c96b8e28855f12d648bdf1b25944ade53ebbad64a5a302a64
font_01_sfnt_off000072aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72AA 14852 bytes
SHA-256: c18d838e28d4ed8ade0ab3048e8fa4b5a4a0bae2cb6ecab9ac250df2e7412efa

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