Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c24beb31dcd9e1a…

MALICIOUS

PDF

54.9 KB Created: 2020-08-07 13:20:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e2487095a54aae020a82181035a4fb8c SHA-1: 3cb731609e7f62bffafc8a8f3aef89df8ab7a106 SHA-256: 6c24beb31dcd9e1a2863b02e4c32e20b156211bc8aefe78f1510bdece42ba80f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The document body, though obfuscated, contains text suggesting a lure related to "card game rules pdf" and includes the malicious redirector URL. This indicates an attempt to trick users into visiting a compromised site, likely for phishing or malware distribution.

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=oh+hell+card+game+rules+pdf In PDF document text
    • http://files.huntersvillelawyer.com/uploads/1/3/1/4/131454523/5274edf52dac71.pdfIn PDF document text
    • http://files.cienaraenelson.com/uploads/1/3/2/6/132682204/42036d41.pdfIn PDF document text
    • http://kuvogoxub.nccftw.org/uploads/1/3/2/7/132712207/67b924962.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/1/0437/8905/8206/files/tomb_of_annihilation_magic_items.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/49326806747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7695/1974/files/nadagorifofelezelopomiwev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2119/7724/files/nijuzoropujonez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3491/8568/files/linolapizuzewet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7357/6865/files/98174000064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7801/6406/files/denon_avr_x1500h_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2286/0956/files/33030343376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/33504122857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xizujebekox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0949/8536/files/pipojugiwemurikewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3333/7768/files/kamafulinuwimidar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7354/4093/files/95231305913.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_off0000988c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x988C 5596 bytes
SHA-256: 865411328dbf405eb350901b621c84eec66cac78a79e2acb21f8b7a620a21f90
font_01_sfnt_off0000ab68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB68 10416 bytes
SHA-256: c82ec1c17ddb4998f8d5775cec8297fb838d53b9e97618852e8481259e6440bb

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