Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a8bf5ee17015198…

MALICIOUS

PDF

79.3 KB Created: 2021-10-11 20:56:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 6fa292da2f3f8bcff66948b6e9fe3efb SHA-1: cbd6b95451b8b6a4e749d6f717771cedc28104a4 SHA-256: 9a8bf5ee17015198988622f5edbd882cc29545ed656ac84de5184ad46d9ae45d
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external URIs, many pointing to disposable domains, characteristic of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is the primary mechanism for executing malicious actions.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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
  • 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.
  • 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 http://tbff-bygg.se/img/files/wagog.pdf In PDF document text
    • http://hoangle.vn/uploads/userfiles/file/25898194948.pdfIn PDF document text
    • http://ville-dammarie.com/ckfinder/userfiles/files/zisalififizulimazupur.pdfIn PDF document text
    • http://hillsdalehorseboarding.com/ckfinder/userfiles/files/62540810793.pdfIn PDF document text
    • http://thehbbq.com/uploads/files/97447605694.pdfIn PDF document text
    • http://yyfxsw.com/upload/files/pogikulipixi.pdfIn PDF document text
    • http://talani.nl/userfiles/image/file/57345747536.pdfIn PDF document text
    • https://olboihorgaszto.hu/editor_up2/nabutanuxagobokobuxox.pdfIn PDF document text
    • https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/09f63b59041b076c7e7a1ed488033356/gagoxenekoxuzoju.pdfIn PDF document text
    • http://www.andreapondika.cz/file/23134945086.pdfIn PDF document text
    • https://seger.cz/userfiles/file/mepuzexejizuxobiravisuvu.pdfIn PDF document text
    • http://hunicorn.hu/userfiles/file/44159863911.pdfIn PDF document text
    • http://kolbiko.com/images/uploads/file/kapugesu.pdfIn PDF document text
    • http://fobosgrunt.ru/files/ckfinder/files/gaxadogibig.pdfIn PDF document text
    • http://dangkydoanhnghiep.org/hinhanh_fckeditor/file/lukodixitamomixezetapifa.pdfIn PDF document text
    • http://ameshamagazine.com/js/upload/files/lurodufivadojuvevonu.pdfIn PDF document text
    • https://preciseenergygroup.com/media/47565935799.pdfIn PDF document text
    • https://bakwanudang.com/contents/files/90923572320.pdfIn PDF document text
    • http://www.fan-consultants.com.tw/ezadmin/ckfinder/userfiles/files/22694474125.pdfIn PDF document text
    • http://apexnepaltravel.com/userfiles/file/7997342754.pdfIn PDF document text
    • https://haps.company/wp-content/plugins/super-forms/uploads/php/files/031b092fe42bc1211afa19eda8757023/17865186770.pdfIn PDF document text
    • https://amt-alarmy.pl/userfiles/file/jitalimasivomejo.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/oscUj7J0Gjw/uplcv?utm_term=2+letter+words+starting+with+mPDF 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d07f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD07F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE896 10804 bytes
SHA-256: b1b7adc2a08b30ecc2dcf7c199f2f7be64c6df020fe5e081ca365bc9cf29a068
font_02_sfnt_off00010126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10126 18128 bytes
SHA-256: 2822c3f7601f3dbec245f5c9acf0756e4b84d3a4c59fcdc73dfacb09df04dc04

Open this report in the interactive analyzer, or submit your own file for analysis.