Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa80e0509a699c89…

MALICIOUS

PDF

76.4 KB Created: 2021-10-08 02:04:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: b416cb6accfb426a72af85d7534cf920 SHA-1: 46b03519d262349ad1facbeee1516538b42bb70c SHA-256: aa80e0509a699c8914a041fc51a7bef9acb3f51696b42c45c56432a3c81e09a5
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9963

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 http://ormansagszive.hu/upload/file/66926833622.pdf In PDF document text
    • http://www.bevillelecomte.ovh/ckfinder/userfiles/files/nakoduvigekisima.pdfIn PDF document text
    • http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1615ed07244ed9---lenenaxagebifaxa.pdfIn PDF document text
    • https://cengilli.com/icerik_images/file/40762201462.pdfIn PDF document text
    • http://billedbutikken.dk/articlefiles/file/dibulapapimokib.pdfIn PDF document text
    • http://www.santabriganti.org/admin/ckfinder/userfiles/files/19908097218.pdfIn PDF document text
    • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/1d6ca1b2f2e329aeb0d9251a459e64e5/77606778813.pdfIn PDF document text
    • https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/9e1b95c65ef13b334f1cfb1d674701b8/fusosekejijubatidenam.pdfIn PDF document text
    • http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147914db2cd9---79199524566.pdfIn PDF document text
    • https://efficimm.fr/userfiles/files/givobolobomefezuxofim.pdfIn PDF document text
    • https://mygoaltv.com/ipp/images/uploads/files/21887140661.pdfIn PDF document text
    • http://gayaarchi.com/userfiles/file/20211008063017.pdfIn PDF document text
    • http://thuaphatlailongthanh.vn/upload/contentFile/minhchau/file/83388762137.pdfIn PDF document text
    • https://thefertilizergranulators.com/d/files/34621250059.pdfIn PDF document text
    • http://mvpbuilding.com/userfiles/file/siletutuzejoteritet.pdfIn PDF document text
    • https://pingthye.com/userfiles/files/53422544101.pdfIn PDF document text
    • http://www.greddy.com/admin/common/ckfinder/userfiles/File/85187088039.pdfIn PDF document text
    • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1613b705839798---15946418899.pdfIn PDF document text
    • http://zhuoer.ltd/userfiles/file/mixakanogamogatowuxolaku.pdfIn PDF document text
    • http://shopsuathientu.com/uploads/userfiles/file/zakagurofezux.pdfIn PDF document text
    • http://yilip.net/userData/board/file/14223665054.pdfIn PDF document text
    • http://firesecurity.sk/userfiles/file/97427085100.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=start+numbering+pages+on+page+3PDF link annotation
    • 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_off0000c494.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC494 11036 bytes
SHA-256: b115a0b53c79a1543d7c7c338815166e2e277a87fa4119c3b9888ae8f38d38c5
font_01_sfnt_off0000de0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE0A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f61c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF61C 18136 bytes
SHA-256: 818068442fd01c0f23ca2395af2c5aba1897e856b79f34a9bd609d7e46246a0b