PDF malware analysis — malicious · 6ed4095bded6c6bc

MALICIOUS

PDF

131.4 KB Created: 2021-08-06 12:25:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11

MD5: a22cf7c2aad6ca80767650abe49ff410 SHA-1: f8e76f3e81378affd54981f67f22e5d81aeb5f36 SHA-256: 6ed4095bded6c6bcd2fe3f63567454bc1f09ccffb99d22587374b99d800b981f

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links pointing to compromised CMS uploads and disposable hosting, indicative of a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly support its malicious nature, classifying it as a phishing trojan. No scripts were extracted, but the structure and URL patterns suggest a phishing or malware distribution lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9902

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160b3a2d3b1b5c---71268494200.pdf In PDF document text
- http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d742a8c80d---giguwebakilegiwov.pdfIn PDF document text
- https://valubil.com/public/uploads/cms_file/cms_files/pewamaxasejagawa.pdfIn PDF document text
- https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/2b205f9f773f2bf436edd6709d273e78/feguna.pdfIn PDF document text
- https://youstore21.com/wp-content/plugins/super-forms/uploads/php/files/75ea41f9b6c8786f304b4fad6b124302/45130618102.pdfIn PDF document text
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/bige3uo225l7bbvamke3sgj8om/62464224534.pdfIn PDF document text
- http://auksozvynas.lt/userfiles/file/60843834582.pdfIn PDF document text
- https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/1608238b6ca454---66708550336.pdfIn PDF document text
- https://hrmconsulting.biz/upload/files/59861146773.pdfIn PDF document text
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbf9a16a04---gotigun.pdfIn PDF document text
- http://gewoongroen.eu/app/webroot/files/userfiles/files/luwedatixijigusovuga.pdfIn PDF document text
- http://www.sempresaude.net/wp-content/plugins/formcraft/file-upload/server/content/files/16070154c243d8---62408804956.pdfIn PDF document text
- http://innospectrum.eu/hirlevel/file/4927714415.pdfIn PDF document text
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a2670be3b2---2505582832.pdfIn PDF document text
- https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/v661dct57uggovuro2k7amcdra/bagowawam.pdfIn PDF document text
- https://pharma-tools.eu/galeria/file/64987293443.pdfIn PDF document text
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/38e5a047d06d2e660776c535908d40c0/3060100437.pdfIn PDF document text
- http://mdsalon.ru/img/lib/file/kotalazekirizepubam.pdfIn PDF document text
- https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/fecf56a605ec2b16632e6bcdcf936f37/53504730704.pdfIn PDF document text
- http://computer-rudolstadt.de/upload/file/beregofujawugolep.pdfIn PDF document text
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3f70896ade---61581524815.pdfIn PDF document text
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/p63i502a2nkh17uqemhd5glofs/87334077023.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=what+is+meant+by+first+angle+and+third+angle+projectionPDF 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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00017cb9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x17CB9	21396 bytes
SHA-256: `87ef7374c1b46df2b21713cad982ec48baa6e553cdfd72db324adeb3b8d64bbf`
`font_01_sfnt_off0001b676.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1B676	16280 bytes
SHA-256: `e2261041576f8723b898fd1be77834218bb2681e1f864527dd57a680cd77f124`
`font_02_sfnt_off0001cc86.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1CC86	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_03_sfnt_off0001e49d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1E49D	11444 bytes
SHA-256: `a706ce663a8681862750812289080c35f41f10af496baa80f95b1b496a98645f`

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