Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af1cb8f99c563a1…

MALICIOUS

PDF

78.8 KB Created: 2022-04-05 19:39:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: c079a5011aaecd000dcdfd1f2b2e2a89 SHA-1: 56db96a335519aca2086b7347eab3bd3b9464c68 SHA-256: 4af1cb8f99c563a19802418f86f4ba4c8dd6f4c925b0f2ac2788fcb65750369a
186 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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://norin.co.za/YmrXLWy8?keyword=2013%20nissan%20sentra%20reset%20check%20engine%20light PDF link annotation
    • https://tijezelaxupoki.weebly.com/uploads/1/3/5/3/135340387/4cb52.pdfIn PDF document text
    • http://monteconsultants.com/image/upload/File/zerefavufomawegux.pdfIn PDF document text
    • http://faurau.com/luodan/images/userfiles/file/petar.pdfIn PDF document text
    • http://111-orte.de/testarea/cwsCMSlight/media/files/70345295076.pdfIn PDF document text
    • https://laptopserwis.com/app/webroot/media/files/77968988512.pdfIn PDF document text
    • https://romovemesokawaj.weebly.com/uploads/1/3/4/4/134479736/jugutidotekag.pdfIn PDF document text
    • https://jebezijako.weebly.com/uploads/1/3/5/9/135964749/1330254.pdfIn PDF document text
    • http://www.giuseppe.ru/ckfinder/userfiles/files/4309041759.pdfIn PDF document text
    • https://rezigetofetima.weebly.com/uploads/1/3/1/1/131163738/jiret_bosodike.pdfIn PDF document text
    • http://chestheart.org/journal/assets/ckeditor/kcfinder/upload/files/tawovogoninat.pdfIn PDF document text
    • https://pojamemurix.weebly.com/uploads/1/3/1/4/131408024/gaforusigu.pdfIn PDF document text
    • https://fodirimuf.weebly.com/uploads/1/3/4/6/134621751/zomivelejetakuz.pdfIn PDF document text
    • https://nezemugobif.weebly.com/uploads/1/3/4/5/134519414/5977290.pdfIn PDF document text
    • http://metaphorcreators.com/kcfinder/upload/files/10323527013.pdfIn PDF document text
    • http://k1a.ru/images/files/file/kafudu.pdfIn PDF document text
    • https://futurefacesnyc.com/uploads/file/lurorofot.pdfIn PDF document text
    • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/162415b5761e05---dawewelinivisukolusogima.pdfIn PDF document text
    • https://vojawafi.weebly.com/uploads/1/3/1/6/131636668/bbe821fc0b.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

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_off0000ce07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE07 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e619.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE619 17384 bytes
SHA-256: d27e8fe3ddd9270fbc8b224334946548820144647383e35374622c77bf3185f9
font_02_sfnt_off000113af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113AF 10852 bytes
SHA-256: d97017a0082377f50e7d46e4031a8c6e316bacb554305e23a2bced9c45c8bb2c

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