Malicious PDF — malware analysis report

Static analysis result for SHA-256 af463bf3021eda3b…

MALICIOUS

PDF

44.5 KB Created: 2020-07-28 02:15:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1a4a4fcd5fecf901fdce844fa3dc1f13 SHA-1: 015c0ecece6383157f37b972d02486ecb77ccc97 SHA-256: af463bf3021eda3b052bfa64d69c1ccabdf30dad40794054874659b294a64615
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'corporate identity template online'. The presence of multiple external links, many hosted on Shopify, indicates a link farm strategy to obscure the ultimate destination. The ML classifier strongly flagged this PDF as malicious.

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=corporate+identity+template+online In PDF document text
    • http://files.the100dayproject.org/uploads/1/3/1/4/131407284/nuzurejoz.pdfIn PDF document text
    • http://files.patrickmcculley.com/uploads/1/3/1/3/131398573/a831397dc.pdfIn PDF document text
    • http://files.bbqpete.com/uploads/1/3/1/4/131482968/fades-bedoremijikidol-ronufit-saripigi.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/1/0431/2026/3322/files/19165456633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4026/0775/files/68221229106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6643/3435/files/derabinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0130/6526/files/40775755987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9238/5700/files/89291786708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/dafuzalogarojirukadajen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8801/1673/files/bomodiguzara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5674/3079/files/48074135844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0364/2007/files/33945515929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7061/1861/files/60932243825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7401/9740/files/nikexiworalosukud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5436/6877/files/59416015703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tokon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1978/7675/files/97854416629.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 4

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_off00007250.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7250 4840 bytes
SHA-256: 4db1ad611b11ab8133222cf36e4a72c16b6fa225a6da556a18dc5e1a4ac1110b
font_01_sfnt_off000082ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82AD 10028 bytes
SHA-256: 5c5f9f9ed14d6df2f6252368643a179d11136ff84aaabe683d5af591d5010809

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