Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ac7246aa2feae61…

MALICIOUS

PDF

103.6 KB Created: 2021-07-18 19:32:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 76c1d0eb00814293ec2903bdb73090a9 SHA-1: 338722cdd6d05da3a7cd7b66c5917dc08199a03e SHA-256: 0ac7246aa2feae61f5c14c229a877df2321e9d3b0254e4890865b776b28e7d2d
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including a high-severity ML classifier and ClamAV, indicating malicious intent. The PDF contains embedded links that redirect to external URLs, a common tactic for phishing or malware distribution. The presence of these links suggests the document is designed to trick users into navigating to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://feedproxy.google.com/~r/sq/ugae/~3/HbdJGeoIq_s/square?utm_term=the+final+product+of+the+calvin+cycle+used+to+produce+glucose+is PDF link annotation
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f083c553310244143c3595/1626375109798/tenotusitisedusebuji.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ed9a66d2d00a35b8d018d7/1626184294426/84001371152.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f049376c23812fe986eeee/1626360120075/east_west_roof_guardrail.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ee7eeb114e6b7b7dea73aa/1626242795716/75220027770.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f24fa030ed5374500e3d5b/1626492832840/first_american_horror_story.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f061682cd55711ca6c158a/1626366312318/letuzimatapabew.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f2ad5e04a1d97017944142/1626516830894/balamiwudogodanaxefedu.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e961133ba7d954d547feab/1625907475316/viteee_sample_papers_with_solutions_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e932d25fa2eb14b90c6698/1625895634645/vowixoroguxikomip.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f1d61b4e7c686a32cbcb88/1626461723182/soccer_strength_and_conditioning_workouts.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013212.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13212 17232 bytes
SHA-256: edaa206019c89145794f5119299be71dc23ba7708cf3382e57ca1f60314aebd8
font_01_sfnt_off00015f3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15F3B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00017752.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17752 11140 bytes
SHA-256: cda70371e77e6cb2147efbbddd084f209b0d95c3e7c29986496b48f679e27e48

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