PDF malware analysis — malicious · c5d2fb33247df7d4

MALICIOUS

PDF

78.0 KB Created: 2021-09-13 12:30:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27

MD5: d5bada8c94175ddb6a0b536c2281d099 SHA-1: 41e9ab8d699be55523916df38ab7de0aa28fe488 SHA-256: c5d2fb33247df7d4974a647e29d99361dbf870c3129544acb24b8c968777b62c

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9978

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
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://www.rannatennis.ee/data/upfiles/files/jawolamiluxe.pdf In PDF document text
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134bbb169943---42192357675.pdfIn PDF document text
- http://suamanhinhlcd.net/userfiles/file/nosewigozali.pdfIn PDF document text
- http://sbs-group.co/userfiles/files/84759083412.pdfIn PDF document text
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16132e2c7c6140---81677654489.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/161323194e71a9---39318141133.pdfIn PDF document text
- http://ksnjl.com/userfiles/files/19766710897.pdfIn PDF document text
- http://www.chiringuitomediterraneo.com/ckfinder/userfiles/files/43132219276.pdfIn PDF document text
- https://nmcs.ca/userfiles/files/bulur.pdfIn PDF document text
- http://www.gitialiganjlko.org/ckfinder/userfiles/files/darapo.pdfIn PDF document text
- http://cobe-ing.it/userfiles/files/87140059123.pdfIn PDF document text
- https://it-remarketing.pl/app/webroot/media/files/zuwanetefodekukobivuz.pdfIn PDF document text
- http://nutronicltd.com/userfiles/file/vojotijaxafovedusonu.pdfIn PDF document text
- http://nrgmedia.hu/files/file/pikevodifaj.pdfIn PDF document text
- https://martensmgt.com/business_school/uploads/file/75619810462.pdfIn PDF document text
- http://king-tableware.com/uploads/files/202109011722519285.pdfIn PDF document text
- https://websbag.com/uploads/files/gamixosisigowemidagek.pdfIn PDF document text
- http://www.johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/tativ.pdfIn PDF document text
- http://jnmindia.com/outscapes/admin/ckeditor/uploads/ck/files/94284521820.pdfIn PDF document text
- https://magiccat.pro/ckfinder/userfiles/files/82520443766.pdfIn PDF document text
- http://rulife.ru/ckfinder/userfiles/files/35405809792.pdfIn PDF document text
- https://fullmagicweekend.com/ckfinder/userfiles/files/3772433427.pdfIn PDF document text
- http://18554080.com/userfiles/file/81043527833.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=m4a+file+androidPDF 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_off0000cd9d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCD9D	10152 bytes
SHA-256: `d99f79f6b01998df5dbad2fa7e79bb9cb2bc7b3852457b82341ad9a698986665`
`font_01_sfnt_off0000e45a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE45A	18104 bytes
SHA-256: `d3a0512666c8d3216f246d1c032adf47a2b781ea1fea7dc31f622fb00c6c073f`
`font_02_sfnt_off00011273.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11273	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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