PDF malware analysis — malicious · 72b3c246541b5796

MALICIOUS

PDF

70.9 KB Created: 2021-10-04 01:03:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28

MD5: 49815205a434ce9aff853754ed7f0342 SHA-1: bda17ce70448688c9fc3c821768b0e6dec4ed0f8 SHA-256: 72b3c246541b57961501189a5f3a624ad2d98609fbbdd608578088528a7e7ce5

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9975

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://smidgel.ru/uplcv?utm_term=how+to+make+a+calculator+in+html PDF link annotation
- http://gddfboiler.com/uploads/files/zulikofuxeto.pdfIn PDF document text
- http://headrepublic.pl/images/files/pafinazedudedarovikivozuv.pdfIn PDF document text
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/0c898c8c608537943c80ae4ef4534e6a/77633797448.pdfIn PDF document text
- http://epicridesnepal.com/files/nimotusokorexax.pdfIn PDF document text
- https://chongtham68.com/app/webroot/uploads/files/98003456892.pdfIn PDF document text
- http://e-sportis.com/images/upload/11494925244.pdfIn PDF document text
- https://maychieuvinh.vn/upload/files/tizinexufasojunede.pdfIn PDF document text
- https://yunglin.com/uploadpic/files/62285643507.pdfIn PDF document text
- http://frutapac.es/ckfinder/userfiles/files/87961096850.pdfIn PDF document text
- http://paneldeconsos.com/userfiles/file/14284940444.pdfIn PDF document text
- http://surestegc.org/documentos/file/xedubimod.pdfIn PDF document text
- http://xiangzhuan.tw/upload/files/94780815083.pdfIn PDF document text
- https://raguvosbaldai.manovonia.lt/images/files/8834099394.pdfIn PDF document text
- https://helicopterleasingservices.com/userfiles/files/78110581176.pdfIn PDF document text
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16153427178da3---74758734913.pdfIn PDF document text
- http://thetestmag.com/userfiles/files/marukuv.pdfIn PDF document text
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/eda8c452c10a9d584cf28f4eb5a07332/67235728878.pdfIn PDF document text
- http://poltinik.ru/userfiles/file/54167056019.pdfIn PDF document text
- http://geologocarmignani.com/userfiles/files/kopesifikumotisem.pdfIn PDF document text
- https://emenu.hu/editor_up/zulibemox.pdfIn PDF document text
- http://hijoin.hu/editor_up/kuxesilubixodujidek.pdfIn PDF document text
- http://dharmapuridiocese.com/svnprojects/DHD/Source/images/files/70743606999.pdfIn PDF document text
- http://sistersaviopublicschool.com/userfiles/file/9338017436.pdfIn PDF document text
- https://mmagame.com/userfiles/file/mukibavimoralivararido.pdfIn PDF document text
- http://kozhencherrymtc.org/userfiles/file/nofokel.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000b499.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB499	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000ccb0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCCB0	10596 bytes
SHA-256: `70ec89f806f5e8efdf4b766fde47b2cc6ffae3c04c20882a5de30f7b57ad54ef`
`font_02_sfnt_off0000e49d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE49D	16112 bytes
SHA-256: `190366606789cb1a1c579aae05cef80f0d2c601292300f7afc89d3f54835d15b`

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