Malicious PDF — malware analysis report

Static analysis result for SHA-256 badf38b946c9b3a8…

MALICIOUS

PDF

48.4 KB Created: 2020-08-06 10:19:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0471d02c5c05fe227be212ef68fb84e4 SHA-1: e37f6979053d8b22662ca5a857918740558cc315 SHA-256: badf38b946c9b3a8e4929b11a100fe5f90de9c7b18bfaf5c4e8d96e1f0cec0c8
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, suggests a lure related to a "Cg police 2020 syllabus pdf". The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many of which are hosted on Shopify, likely to obscure the malicious redirector. No scripts were extracted from this sample.

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.ru/pify?keyword=cg+police+2020+syllabus+pdf In PDF document text
    • http://files.inachildsname.com/uploads/1/3/1/4/131406811/ff1a386aed0c0c2.pdfIn PDF document text
    • http://files.azkillerbeessoftball.com/uploads/1/3/0/8/130874518/jemizip.pdfIn PDF document text
    • http://tikom.thecompoundgrs.com/uploads/1/3/0/8/130873804/5794187.pdfIn PDF document text
    • http://belupe.shivalingumdialogues.com/uploads/1/3/0/9/130969465/zunitiwel.pdfIn PDF document text
    • http://files.diamondlfeedandtransport.com/uploads/1/3/1/1/131163564/a4be42dd8.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/1/0437/6697/2577/files/vipavaxinoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6936/5654/files/minecraft_0._12._0_servers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3151/7605/files/94125892240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0766/2490/files/hot_wire_anemometer_working_principle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9953/6040/files/95014895977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4541/9165/files/prentice_hall_biology_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1266/1146/files/spanish_english_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84302935330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7898/4614/files/lubumezokijolijusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9277/8901/files/40047619699.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_off00007f48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F48 5648 bytes
SHA-256: 6d096df99e2016c6f816b85e93822b0dc44857775bfa8d25c9d34f7a621e9f03
font_01_sfnt_off000092a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92A0 10016 bytes
SHA-256: 846670b0e39e014f32d08e69589401d5c958498492b8bba436867f896a6682f9

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