Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf95ee7687017d35…

MALICIOUS

PDF

44.6 KB Created: 2020-08-04 05:52:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3a552b02b64deb23f83de38a08f04261 SHA-1: 207984676ccdae1e2d26171cddd65a1fbc383963 SHA-256: bf95ee7687017d354af0b5d546b6f776a9e7c8f372846f25ffd3ed2c9184e32b
202 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to a 'battery charger schematic diagram pdf' and a call-to-action phrase, suggesting a lure. The PDF_SEO_LINK_FARM heuristic indicates a large number of external PDF links, likely for SEO manipulation or to host further malicious content. The primary malicious IOC is the redirector 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.ru/pify?keyword=battery+charger+schematic+diagram+pdf In PDF document text
    • http://files.veescape-info.com/uploads/1/3/1/4/131407424/e991ec14.pdfIn PDF document text
    • http://files.karynpearson.ca/uploads/1/3/0/7/130775659/rogetewifowixeji.pdfIn PDF document text
    • http://files.dorebowen.com/uploads/1/3/1/6/131607174/3994866.pdfIn PDF document text
    • http://files.hancockfamilyfarm.com/uploads/1/3/0/9/130969045/8402023.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/1/0430/9676/8665/files/barurusakawesufaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2200/0029/files/61454851874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5326/0700/files/ravusoruw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9334/3899/files/venebitoviluvenuzipigide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5575/0049/files/24517952109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/pudulok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/7759073145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2099/9064/files/61122768650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2853/7753/files/53003242835.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8308/8547/files/dokixemoliboxusiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1860/0103/files/39434256639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8583/2096/files/vemeviw.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_off00006edd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EDD 5688 bytes
SHA-256: 3060144efe28f9ad3dbb77c606f7f1872283131e186330ae70142cd64274d8f9
font_01_sfnt_off00008218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8218 10352 bytes
SHA-256: c66f9d1a51a476a9ddbad17061eba723935d6139e890c9b41b75306a5e7653c1

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