PDF malware analysis — malicious · 1ebd615f827e9375

MALICIOUS

PDF

85.5 KB Created: 2021-06-27 23:58:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13

MD5: b120ca4780bf7024aa0c8fff8bb28ee4 SHA-1: c742333d58400a069d813d2d10c696fb5a0c3af8 SHA-256: 1ebd615f827e93755a759d2733d4e1e63b89bbbc41e8f3c69f4fcf9e6243c1b7

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous links pointing to compromised WordPress sites, suggesting it is used to distribute malicious content or redirect users to phishing pages. No scripts were extracted, but the presence of external links indicates an attempt to lure the user to a malicious resource.

Machine Learning

Nyx PDF Classifier malicious score 0.9860

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://wastran.ru/uplcv?utm_term=meaning+of+colonialism PDF link annotation
- http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160705558c0f5c---todaworipenuwowemixupav.pdfIn PDF document text
- https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/cf988ada5e37daf8a6c256f0b0e85633/dibuwa.pdfIn PDF document text
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/16098acf5cd530---vedolemenenemikusetame.pdfIn PDF document text
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/77f762ce9735012c9da1f647646ba30f/84227618576.pdfIn PDF document text
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1890a26bf7---57751238718.pdfIn PDF document text
- http://www.logistiekverbeteren.nl/ckfinder/userfiles/files/begir.pdfIn PDF document text
- http://bangdientunhk.com/upload/files/26665872238.pdfIn PDF document text
- http://fashioncenterpoint.com/wp-content/plugins/super-forms/uploads/php/files/c37f8aa32d93f173d41acf91ed451669/zetesuzivok.pdfIn PDF document text
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/5e390ceb69c07f7f92adfb4ed4f904d6/jenesijoboxopugit.pdfIn PDF document text
- https://perfecthospital.org/FCKeditor/file/29441971172.pdfIn PDF document text
- http://thebestpearsonfamily.com/clients/e/e6/e6a49a9b6fa3fb0349b1957bd02e8b5b/File/36853844618.pdfIn PDF document text
- https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/733ca03218446d873e7291ebfacfc2a0/rakodo.pdfIn PDF document text
- https://sinhadventure.com/uploads/file/dafelafasipemumol.pdfIn PDF document text
- https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/160ac2e90497d8---sonumokarabupiba.pdfIn PDF document text
- https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/24b92be43d9b686b2622ef98426f5c24/rufimogege.pdfIn PDF document text
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae48e55cae2---45066139091.pdfIn PDF document text
- https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/160ab9b9bdb259---sipipebesumemunixase.pdfIn PDF document text
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160aaf913dec08---69441408336.pdfIn PDF document text
- http://berkeleyhigh64.com/clients/9/99/99a482d4bd0dc5522cc24ea7f8204a07/File/28645923966.pdfIn PDF document text
- http://www.deco-interieure.com/userfiles/file/zasudovatuwo.pdfIn PDF document text
- https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/b745bca952cdac5f196516d41184f65a/reridedojazesomegome.pdfIn PDF document text
- https://absolut-fit-and-dance.de/wp-content/plugins/super-forms/uploads/php/files/nld71nm87c92m8e6qe3pstq84o/mukoxep.pdfIn PDF document text
- https://micast.de/wp-content/plugins/super-forms/uploads/php/files/33s3nclf1cvi35jtcvcouupc07/568892330.pdfIn PDF document text
- http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d272ae7b8c---94833128840.pdfIn PDF document text
- http://eurolocal.info/sites/default/files/images/file/57669776853.pdfIn PDF document text
- http://ipmarketing.net/userfiles/file/bawugesutikozesajefi.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_off0000ed9a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED9A	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off000105b1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x105B1	10476 bytes
SHA-256: `efc894ce8471adc6b531b7ea4694ef04e6327bdc2be7002ac5856d2e2ca3aac7`
`font_02_sfnt_off00011d6d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11D6D	16900 bytes
SHA-256: `e561e92a7d2e07fd0d8337d2c9ce5cc1e56895993ad052eb7167733db20d5391`

Open this report in the interactive analyzer, or submit your own file for analysis.