Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9cfb23a411f4710…

MALICIOUS

PDF

65.0 KB Created: 2022-04-14 16:00:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: 2082aeeb3411c97780d9e5c41f277c4e SHA-1: e46daf5b185c10f1a05c205afcd5e5dea812ef5a SHA-256: a9cfb23a411f4710f122b654c6e19438124ce08655f240032b0a5a25a46976f2
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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 https://podar.co.za/YmrXLWy8?keyword=unitypoint%20methodist%20morton%20il PDF link annotation
    • https://matfplayer.com/calisma2/files/uploads/gezifuvusofupik.pdfIn PDF document text
    • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/251b6a76b8d7506ca6f6c75de7ef7d47/25254605419.pdfIn PDF document text
    • https://www.amc-lda.com/assets/kcfinder/upload/files/33230432664.pdfIn PDF document text
    • https://stagelight.pl/userfiles/files/61491526131.pdfIn PDF document text
    • https://sunivisoxeban.weebly.com/uploads/1/3/4/4/134493344/c1b8967c8e0a8d.pdfIn PDF document text
    • https://xifobosakup.weebly.com/uploads/1/3/2/8/132815359/nixisafagugovu_komazakaga.pdfIn PDF document text
    • https://gunujudota.weebly.com/uploads/1/3/2/3/132303168/kinuzelomis.pdfIn PDF document text
    • https://fojigexo.weebly.com/uploads/1/3/4/2/134235048/mejemokilad_popugaduxop.pdfIn PDF document text
    • http://csc0516.com/userfiles/file/20220406020121_zaz42n.pdfIn PDF document text
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/162358a30c223b---wukusitosarubevedusedab.pdfIn PDF document text
    • http://aroma-es.red/yamituki-n/uploads/files/begolatapofasuzupo.pdfIn PDF document text
    • https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/7346a2e3b97202c949a183c2dd035685/22381129438.pdfIn PDF document text
    • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/161fbc06a26855---25555173655.pdfIn PDF document text
    • http://rosspeed.com/kcfinder/upload/files/motiva.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 extracted file (font_00_sfnt_off00009ba3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00009ba3.bin)

Related samples 1

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_off00009ba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BA3 16428 bytes
SHA-256: 1ee0633a1eafdde1622497db18e104daf111c65ccd24822be6324f12e6a9c5d1
font_01_sfnt_off0000c656.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC656 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000de6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE6D 10616 bytes
SHA-256: 769e2e8fd9f5c94e4cebe7ba4657a6e2ed181a37becdf246fd9e258ed6567ede

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