PDF malware analysis — malicious · 78246bac733b659a

MALICIOUS

PDF

109.0 KB Created: 2021-08-14 10:31:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16

MD5: f9e348902b9aec88d6387c3743d3eeba SHA-1: bd37b41249031322a1fa9ef3941543efbcfca9bb SHA-256: 78246bac733b659af74a24a9deb52d57f40beababfe0ac20989966d5942bdc75

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9993

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 http://banghetretunhien.com/media/ftp/file/rujajanekewasidekepuwares.pdf In PDF document text
- http://ttccid.com/userfiles/file/4423151869.pdfIn PDF document text
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609a94476bcc0---vakakuberapojujifipodal.pdfIn PDF document text
- https://amblamy.ee/upload/file/18160985072.pdfIn PDF document text
- https://magatek.com/documents/file/58677391714.pdfIn PDF document text
- http://rheumatology.institute/upload/content/file/fasedatukekudimowagona.pdfIn PDF document text
- http://weymouthhighschoolclassof62.com/clients/5/50/50fe23896e84432c97ff20d680692bb9/File/81921648371.pdfIn PDF document text
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf13cc074ca---guwefivojaros.pdfIn PDF document text
- http://kamkmori.cz/ckfinder/userfiles/files/49284472494.pdfIn PDF document text
- https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608dfae5a7b4b---5835525052.pdfIn PDF document text
- http://entone.es/wp-content/plugins/super-forms/uploads/php/files/91b9289bd3794b78054902a331108093/labobagede.pdfIn PDF document text
- http://hoshitorionline.com/uploads/files/76476091808.pdfIn PDF document text
- http://starlightskiothon.ca/clients/4/44/44db284a3a4a6a3f34f8f2fa71918f98/File/17998683915.pdfIn PDF document text
- http://arslanemlak.come/file/69966497932.pdfIn PDF document text
- https://ceral.pl/ceral/pliki/file/fajenuj.pdfIn PDF document text
- http://soupworld.de/upload/file/79912746460.pdfIn PDF document text
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/2fff7d1fef8a3f7530d9dce0b4053928/21626167358.pdfIn PDF document text
- https://elbag.net/wp-content/plugins/super-forms/uploads/php/files/c73890a8c1a2fcd960c689f726c94982/vuzavura.pdfIn PDF document text
- http://petersonspann.com/clients/3/32/32c4b2f41fa698b5b938e848169c8dcb/File/199495370.pdfIn PDF document text
- http://zwickerfoto.hu/_user/file/vojobav.pdfIn PDF document text
- http://888chji.com/userfiles/files/78683538335.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=college+writing+skills+with+readings+9th+edition+chapter+12PDF 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_off000146e8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x146E8	16864 bytes
SHA-256: `ead79fc621fccbb79c000fb4d5a55165fff22ae7e49ba2f62548b1dbdafcc556`
`font_01_sfnt_off00017286.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x17286	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off00018a9d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x18A9D	11344 bytes
SHA-256: `11e4c69bc086b4d7385f78c883cc98ea707b0999d2873c1dc361b5495500dd38`

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