Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a16cdd8e642af1…

MALICIOUS

PDF

101.4 KB Created: 2022-04-05 23:33:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-10
MD5: 94abc5098477ec2a9284ef88a84981dd SHA-1: 4097ab73bbb7efa2b16b2c37a2d59df7cae6a635 SHA-256: 18a16cdd8e642af189b334ffdb7c0fbe90fc5119767dfe9fc022c22fbd38bbc2
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9878

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
  • 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=fantastic%20beasts%20and%20where%20to%20find%20them%20magical%20creatures PDF link annotation
    • https://voruvagozi.weebly.com/uploads/1/3/4/7/134742827/6379714.pdfIn PDF document text
    • https://www.voyagegroupepascher.fr/public/kcfinder/upload/files/24872945186.pdfIn PDF document text
    • https://fegojobakib.weebly.com/uploads/1/3/1/1/131163858/494e4361e49.pdfIn PDF document text
    • https://ripulufixi.weebly.com/uploads/1/3/5/3/135388512/gasavuzufesopuvaj.pdfIn PDF document text
    • http://80tner.netsociality.com/upload/files/82621504614.pdfIn PDF document text
    • https://luminex.pl/upload/file/92412907637.pdfIn PDF document text
    • https://dojudiwoju.weebly.com/uploads/1/3/1/4/131406456/3d56a90.pdfIn PDF document text
    • https://kalitelivideoizle.com/resimler/files/gikodul.pdfIn PDF document text
    • http://divorceinhungary.hu/kcfinder/upload/files/55374325464.pdfIn PDF document text
    • http://journalstudiesanthropology.ro/adm/jsq/kcfinder/upload/files/802162046.pdfIn PDF document text
    • https://kejijasorakabil.weebly.com/uploads/1/3/4/3/134311956/ab5025278d06.pdfIn PDF document text
    • http://apricomm.com/userData/board/file/gipom.pdfIn PDF document text
    • https://www.natursany.com/ckfinder/userfiles/files/vubukikosig.pdfIn PDF document text
    • https://nonejekorozu.weebly.com/uploads/1/3/4/1/134108542/a5abd6bc01fc0f6.pdfIn PDF document text
    • https://regifevadep.weebly.com/uploads/1/3/4/4/134476302/1668526.pdfIn PDF document text
    • http://seksdagen.nl/userfiles/file/kuwamefot.pdfIn PDF document text
    • http://ilksolar.com/Images/Media/files/45684149853.pdfIn PDF document text
    • https://www.hotelashray.in/kcfinder/upload/files/57528074431.pdfIn PDF document text
    • https://nugijokokul.weebly.com/uploads/1/3/0/9/130969158/wexujeb-gojerafu-fezidotel-zivape.pdfIn PDF document text
    • http://biplano.eu/userfiles/files/47586221892.pdfIn PDF document text
    • https://familienbilstrup.dk/userfiles/file/gexezokojijanug.pdfIn PDF document text
    • https://vewiwuxipax.weebly.com/uploads/1/3/2/6/132681682/500724.pdfIn PDF document text
    • https://jujijivefovagev.weebly.com/uploads/1/3/4/5/134508679/giwojodapebezal_fidalo.pdfIn PDF document text
    • http://fygl.net/uploads/file/062107421584.pdfIn PDF document text
    • http://image.dlib.vn/libedu/news/vimaru/20220201/file/12559163260.pdfIn PDF document text
    • http://novafish.it/userfiles/files/83514439162.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_off0001276e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001276e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001276e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1276E 11224 bytes
SHA-256: e5b0f50cc2bcd296e53f939513a150173f2835ccfabc4df5298f2567dc4bc137
font_01_sfnt_off00014164.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14164 16560 bytes
SHA-256: 6099e260faa066489c2ce5e8dc8d9d59aab1497aa77b8d6b133e327e0e18c244
font_02_sfnt_off00016c2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16C2D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1