Malicious PDF — malware analysis report

Static analysis result for SHA-256 805f5b2213e638de…

MALICIOUS

PDF

287.5 KB Created: 2022-04-19 10:28:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-11
MD5: 1a1e5ac57907974c4bd4e4b0ad37040a SHA-1: 4a4391229a3b6080763fff8f262356e52d4d192a SHA-256: 805f5b2213e638de5cedc4fbedbcd368dd58acd9d71da0fb381263e725ed88cb
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and multiple external URIs, including one identified as an SEO redirector for free-download phishing. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded JavaScript likely facilitates the download or redirection to a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7854

Heuristics 6

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://lovig.co.za/XSRYdR1H?utm_term=android+studio+tutorial+for+beginners+tutorial+point PDF link annotation
    • http://matras-devison.ru/upload/file/jovakevexetigo.pdfIn PDF document text
    • http://xn--80aer5aza.xn--7-4tbj3b.xn--p1ai/ckfinder/userfiles/files/dolunividuzufanawuwol.pdfIn PDF document text
    • https://vadaduzafud.weebly.com/uploads/1/4/1/3/141380149/dediruki.pdfIn PDF document text
    • https://jopuwijexanubuf.weebly.com/uploads/1/3/0/8/130874501/zabuva_kujirol.pdfIn PDF document text
    • http://alpha-cp.com/userfiles/file/17299334760.pdfIn PDF document text
    • http://abovomedia.hu/_user/file/denokitareb.pdfIn PDF document text
    • http://lynxitservices.com/ckfinder/userfiles/files/58947342485.pdfIn PDF document text
    • https://mumetimobenuja.weebly.com/uploads/1/3/2/3/132302956/8512965.pdfIn PDF document text
    • http://4seasonstours.in/userfiles/file/18148192534.pdfIn PDF document text
    • http://www.egavilanes.com/ckfinder/userfiles/files/dujepalajopep.pdfIn PDF document text
    • https://katolafafesol.weebly.com/uploads/1/3/4/4/134479470/4043556.pdfIn PDF document text
    • http://radiopoint.cz/userfiles/file/rawexawuda.pdfIn PDF document text
    • https://giziviber.weebly.com/uploads/1/4/1/3/141344939/6319640.pdfIn PDF document text
    • https://vutakajar.weebly.com/uploads/1/3/4/8/134896426/6030675.pdfIn PDF document text
    • https://fetotevoli.weebly.com/uploads/1/4/1/3/141396833/8999933.pdfIn PDF document text
    • http://sys-svinding.dk/userfiles/file/12707588188.pdfIn PDF document text
    • https://www.aatae.pt/backoffice/assets/js/kcfinder/upload/files/murekigiritugewafusokod.pdfIn PDF document text
    • https://nuxikete.weebly.com/uploads/1/3/3/9/133997556/padef.pdfIn PDF document text
    • http://silarperu.com/UserFiles/file/xolebozigekif.pdfIn PDF document text
    • http://fixafilm.se/userfiles/file/49189911792.pdfIn PDF document text
    • https://nocrime.cntwn.org/ckfinder/userfiles/files/witefen.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_off0004157c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4157C 15596 bytes
SHA-256: 727d19ae17b701bc72315bfaa4220876f0166a6b07720ef10714e7aabf956c20
font_01_sfnt_off00043d7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43D7A 10896 bytes
SHA-256: 3dfa0b6933e86093f1347b8aea6e6c85673819c7c7c65380ebf4c258aabbf074
font_02_sfnt_off00045668.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45668 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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