PDF malware analysis — malicious · 78227ee7c8c4ed80

MALICIOUS

PDF

89.7 KB Created: 2021-08-23 11:10:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16

MD5: 1eea833b96502d5c084642a56e435db1 SHA-1: 56c9f4fcabcfa3377333135c0c388fd19cbb4840 SHA-256: 78227ee7c8c4ed809c77995430aed124b8079a81c0965681b5764aad55e746b3

196 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9954

Heuristics 7

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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK

PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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://kapsalonindex.nl/images/uploads/zikodujovutazuluj.pdf In PDF document text
- https://hglobaltourb2c.com/FileData/ckfinder/files/20210615_5BB927EDA3414099.pdfIn PDF document text
- http://dmhu.eu/uploads/uplib/file/lofizi.pdfIn PDF document text
- http://ttc-investco.com/img/files/34273392669.pdfIn PDF document text
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c6639d7d0a---tarefadaxarogukagokezut.pdfIn PDF document text
- http://stin-verdon.fr/assets/Image/files/44013963891.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160846ca7d34ae---nupan.pdfIn PDF document text
- http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/bofokojoxiwukufite.pdfIn PDF document text
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc72e80fb1d---jesekoditimajewegegawaro.pdfIn PDF document text
- https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/srv9jarv8thejvldagvkjhv8q9/rarivozeremupujuwoxu.pdfIn PDF document text
- https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c40545eea96---79980296303.pdfIn PDF document text
- http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a34531600a---57714591380.pdfIn PDF document text
- http://charivne.info/images/file/93466988304.pdfIn PDF document text
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160895b4a0e93a---51247920850.pdfIn PDF document text
- http://africa-emergence2019.com/userfiles/file/tesuminufafusap.pdfIn PDF document text
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/81cee3c655e08c70902f4dfc033fcc94/mereru.pdfIn PDF document text
- http://autoscuolauniversale.it/userfiles/files/warogokevotozu.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/56a6f0b88383bfa410d49ebf4c0a1e73/59188769806.pdfIn PDF document text
- http://bibrka-school.org.ua/ckfinder/userfiles/files/18530993209.pdfIn PDF document text
- https://elnativocoffee.com/silver/upload/files/16024760974.pdfIn PDF document text
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16120694f5998d---fetobidaxegawosogoramane.pdfIn PDF document text
- https://babetravelling.com/ckfinder/userfiles2/files/kanatiweviriw.pdfIn PDF document text
- http://thallo-food.hu/uploads/ckfinder/userfiles/files/labiforisa.pdfIn PDF document text
- https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/f3kv8t96g5g72lgj8vluo93j3n/15817076082.pdfIn PDF document text
- https://www.asahinafunnels.com/wp-content/plugins/super-forms/uploads/php/files/mf20c1drgge5lbttv73uqkego5/19634344485.pdfIn PDF document text
- https://cafepiolho.com/uploads/assets/18297043869.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=raising+tilapia+catfish+prawns+and+bangus+to+earn+revenue+is+their+main+line+of+businessPDF 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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f7e1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF7E1	11504 bytes
SHA-256: `978f1cd1e184534f9233e7ab958be5c129db89cd05fad7d50a22b10818682ee6`
`font_01_sfnt_off0001128b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1128B	17108 bytes
SHA-256: `75c6058a3304a0b0db0349f4420a4a7636ab2c54481354135cb892b4207132f3`
`font_02_sfnt_off00013f4a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13F4A	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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