PDF malware analysis — malicious · 02ecac6827945f4a

MALICIOUS

PDF

79.4 KB Created: 2021-06-27 21:04:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-20

MD5: 3114eafe8cbe2ddabc9a59d756d37ca6 SHA-1: 60ed4624ae759e388ba2a9738440664756d80d88 SHA-256: 02ecac6827945f4a0d61e8a4a7d40781199e8951532dc44decfe147fba80f339

164 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and multiple links pointing to compromised WordPress sites, indicating an attempt to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. The embedded JavaScript is likely used to facilitate the redirection or download of a secondary payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9846

Heuristics 7

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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608807b738b9c---lugelevofemujusefewufi.pdf In PDF document text
- https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/t7h0f4d9uile82cpbo7afe5joh/24725441025.pdfIn PDF document text
- https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/e39affd2630e703f34fd1d2a7eb3aac8/seduxamozarogaguzomise.pdfIn PDF document text
- http://euredit-editions.com/userfiles/file/tobuwoxevefulidat.pdfIn PDF document text
- https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/41951a1e41d772478e01b15ae25fb6b1/jafukisaner.pdfIn PDF document text
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1607743ad72005---gulejuwewe.pdfIn PDF document text
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160748bc4bd2ac---wizonajorata.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4d4d6b6461---59547391884.pdfIn PDF document text
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/16076f22fc2145---puwogadibavewazajesoleno.pdfIn PDF document text
- http://sochi-vitrazhi.ru/ckfinder/userfiles/files/98024864898.pdfIn PDF document text
- http://alnadaoil.com/userfiles/file/62664949156.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607972e1e6b79---21627984732.pdfIn PDF document text
- http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9af1f2dbbf---xopegu.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c86ed87a0a6---gigidozolaze.pdfIn PDF document text
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/97c5cda6d9d1cfb3341dabdb606e49dd/seratiliseritugipilokodus.pdfIn PDF document text
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608029f322f0e---7770009764.pdfIn PDF document text
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aa02fe469f---73542659894.pdfIn PDF document text
- https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/bc83d655f3f31ecbb0c7feaaf52ab1fb/72120904751.pdfIn PDF document text
- http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/59eaa415a1db69ed903f65442a20ad92/97197727493.pdfIn PDF document text
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16081b8e6ab4a3---42124274288.pdfIn PDF document text
- https://www.federatedlighting.com/wp-content/plugins/super-forms/uploads/php/files/63eae5d2b27b46f3bf72ed005dfdba5c/pidixedej.pdfIn PDF document text
- http://webdulich.com/js/ckfinder/userfiles/files/4421111541.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b5afdd85068---79451100085.pdfIn PDF document text
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160af99eb7efa1---wilemeserafuvamimabu.pdfIn PDF document text
- http://www.publicitymailing.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd6fd35458---9182401380.pdfIn PDF document text
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cabfb7f03f---78946249123.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=after+by+anna+todd+pdf+downloadPDF 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_off0000cec3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCEC3	18800 bytes
SHA-256: `a5d032886dc20db5792d9f42b57d6298302abf91208e09d1b927009662f55a24`
`font_01_sfnt_off0000fe6c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFE6C	10552 bytes
SHA-256: `a498d10140d12d79887718788d9a50c55e96eb4976819390c2ea169f7e285967`
`font_02_sfnt_off0001167f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1167F	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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