PDF malware analysis — malicious · cd7761e36dd07ba3

MALICIOUS

PDF

80.2 KB Created: 2021-09-18 00:45:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18

MD5: 5b3e0347211b54f124aad4b0e734b67d SHA-1: e17cbe104c6a60d66d343c394f2b7304fd05fd3b SHA-256: cd7761e36dd07ba3e6a57f4b3c4e3b9c035c0d43928ce331886aba114b8d1189

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9960

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://cnn-logistics.com/asset/files/peduxoni.pdf In PDF document text
- http://2safe4u.cz/UserFiles/File/dulagalusejaverufadike.pdfIn PDF document text
- http://ipceurope.eu/assets/file/78429676920.pdfIn PDF document text
- https://acrgroup.nl/userfiles/file/voviwoselumob.pdfIn PDF document text
- https://bliznacite.dvsportbg.com/files/junugiloro.pdfIn PDF document text
- http://be-now.pl/userfiles/file/tajedasusugekudenonolapit.pdfIn PDF document text
- https://benmoonpharma.com/userfiles/file/fadejegilugupen.pdfIn PDF document text
- https://casasholidays.com/scgtest/team-explore/uploads/files/68701752019.pdfIn PDF document text
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16131b8fb353f8---96145510216.pdfIn PDF document text
- https://masihpt1.com/contents/files/jufiguko.pdfIn PDF document text
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16139a584767df---davuvuzubopex.pdfIn PDF document text
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612fcdf50b663---dewetuzejo.pdfIn PDF document text
- https://matricula.netlandschool.cl/files/84841378327.pdfIn PDF document text
- https://partroyfuneralhome.com/partroy/assets/file/mulunekorokak.pdfIn PDF document text
- https://elpollopaulino.com/cenavarra_userfiles/files/nirepepalalaxe.pdfIn PDF document text
- http://dfanchem.com/upload/files/pijagimis.pdfIn PDF document text
- http://taaltoetsvo.nl/userfiles/file/teniwaxamoza.pdfIn PDF document text
- http://cartonwrappingmachine.com/userfiles/file/nufufiwetewu.pdfIn PDF document text
- https://jensbrode.de/files/file/42667318177.pdfIn PDF document text
- http://codienlanhminhquang.com/upload/files/96437920927.pdfIn PDF document text
- http://e-pisanie-prac.pl/famprojekt_z_serwera/images/file/55992486472.pdfIn PDF document text
- http://world-green-hope.com/uploads/files/16103184441.pdfIn PDF document text
- https://vanphongphamhienluong.com/upload/files/86403797220.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=telegram+tizen+watchPDF 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_off0000d46c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD46C	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000ec83.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEC83	10500 bytes
SHA-256: `396b85fff448179f0e4bfe0888d8d44eb040098838a2bd112e9ecb75cca42e4c`
`font_02_sfnt_off00010441.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10441	18316 bytes
SHA-256: `3f9531e92d08f2eff161762b4b0a9460af1f1fca7acdc4e3741e58a9783a23b0`

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