Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2d2fc05076ce09d…

MALICIOUS

PDF

44.8 KB Created: 2020-07-27 13:09:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0d6a47aaba4afc77c7eb23b992a1fde6 SHA-1: b6407e81538e476dcf7045e8ab3baae6005be6e7 SHA-256: a2d2fc05076ce09d13cd3bfbe9f01aa6d38a1b48e293315171c2b996dd7cb5cc
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, appears to be a lure related to 'biological theory of crime pdf'. The presence of a link farm and a malicious redirector suggests an attempt to lead the user to a malicious site, likely for further exploitation or credential harvesting.

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=biological+theory+of+crime+pdf In PDF document text
    • http://files.gnatproductions.com/uploads/1/3/1/4/131452959/591058.pdfIn PDF document text
    • http://files.goplaysport.co/uploads/1/3/0/8/130813668/fitufijusugasen_voxufela.pdfIn PDF document text
    • http://files.shopragjunkie.com/uploads/1/3/1/8/131856162/612f06f8e.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/1/0437/5475/0106/files/moligedof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1503/7351/files/finusejolazan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2013/9170/files/nopuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2929/1427/files/31441968368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/bitesotimeguzapavutureko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5351/3893/files/15283489520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1649/3976/files/totuvatenaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wifufokamavobopizevotug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7432/9499/files/rubakuwotutalonutake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6405/0332/files/pemupazunixupexogujisos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xovigaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8077/7882/files/papusakatukuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1177/6416/files/pasapemuxolamiranigaja.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_off0000726b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x726B 5224 bytes
SHA-256: 47df13cfacba66b5a7212f920f4a62ffe4e98572c2bdea28b89825d0cc1333f4
font_01_sfnt_off00008436.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8436 9844 bytes
SHA-256: b054d5e8a9f83ee5daf84df5553e9b6372006b7d57df114c4380591c5c51fbd3

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