Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c4e6736b40bdbb3…

MALICIOUS

PDF

67.7 KB Created: 2020-08-23 08:05:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2571348c9fa79d7adc929e0223df10b6 SHA-1: febaa6add245b99ef982fbf5954784adaabbeb19 SHA-256: 4c4e6736b40bdbb33dd9646a3c060d19bd7d9dd7bd4ab0101e84369d1b995cf3
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links to a redirector service, which is designed to lead users to malicious content. The document body, though heavily obfuscated, contains a URL that mirrors the redirector's target keyword, suggesting a phishing lure for a 'sales forecast template'. The presence of multiple PDF links and a critical redirector heuristic indicates a high likelihood of this document being used to distribute further malware or lead users to phishing sites.

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.cc/pify?keyword=sales+forecast+template+google+sheets In PDF document text
    • http://files.zazenphoto.org/uploads/1/3/1/3/131380759/5605dc51.pdfIn PDF document text
    • http://files.reventnews.com/uploads/1/3/0/8/130813357/9957390.pdfIn PDF document text
    • http://govuno.enactusguelph.ca/uploads/1/3/1/4/131453133/sezife.pdfIn PDF document text
    • http://files.barrettfineartadvisory.com/uploads/1/3/2/7/132712214/c58e6.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/1/0435/6790/6979/files/85721378709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1660/1249/files/format_factory_for_macbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3989/1357/files/23929779746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5122/0134/files/ff14_botanist_gear_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/berujixawajibexuxutuzogar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7292/9435/files/wuwamam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8706/0378/files/pierre_bourdieu_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9785/8972/files/ladotomidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7619/8305/files/o_level_maths_probability_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0996/6239/files/telapetuvilajumiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4946/6526/files/wasamilefuti.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_off0000ca53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA53 5532 bytes
SHA-256: 0f60d0db37e84bf52ccc90dba08b1764014c4778d75b82946b921c66d779d585
font_01_sfnt_off0000dcf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCF7 10704 bytes
SHA-256: 723e096b1f324d47750ffef2b68c8d4a0fed33e6971c6e7b600a72af3643ea94

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