Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2e7e5925f3936d3…

MALICIOUS

PDF

45.4 KB Created: 2020-08-08 01:32:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c83c32ea98868ac9433351450eb2dab1 SHA-1: e51056bdf7ae02e024a287fb361b67508255c60b SHA-256: b2e7e5925f3936d3cb25a05ce74ced9b48e339e960c66c2f3d8f7a6e6ec69610
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm and a specific redirector URL, indicating a lure to malicious content. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the redirection to known malicious infrastructure. The presence of a 'download' button lure further supports the social engineering aspect of this attack. The document body, though heavily obfuscated, contains the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=caries+detection+dyes+pdf In PDF document text
    • http://files.joelemireart.com/uploads/1/3/1/6/131607027/lurinedidirej-mikadaz.pdfIn PDF document text
    • http://files.selahtechnology.com/uploads/1/3/1/1/131164556/40ad1465.pdfIn PDF document text
    • http://vinevidad.poderpac.com/uploads/1/3/1/0/131070450/5356752.pdfIn PDF document text
    • http://files.ewiechart.com/uploads/1/3/2/3/132302913/gomokiwu-dapewijutufose-jofumuvusu.pdfIn PDF document text
    • http://files.helenjonesart.com/uploads/1/3/1/4/131438788/lisasitod.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/1/0429/2821/0073/files/69843928273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9125/5713/files/70604132029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5305/5128/files/familia_cathartidae.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7165/8392/files/65417283396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6827/5353/files/fujalur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1493/0084/files/nicolas_boileau_art_potique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3485/3021/files/furixusodugefex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2961/0141/files/making_acrobat_default_reader_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3863/0300/files/40838037661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/25929320479.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_off000073e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73E8 5124 bytes
SHA-256: eefa9f75d67ad6820d8bc83fecd7b341c6930f6b8eb2d369324c8d081a4e1b06
font_01_sfnt_off0000856a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x856A 10436 bytes
SHA-256: e37514e3a3c2db0bad154e2741d6dfbc65c8641a4e67166430f133075e5e1ca1

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