PDF malware analysis — malicious · 69d6345477fab4c6

MALICIOUS

PDF

95.5 KB Created: 2021-07-04 20:23:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13

MD5: 4a8d99220598ea134e5f738623738304 SHA-1: 1fe41163173bf0efaf2e3f7df5bbd9d002f924c7 SHA-256: 69d6345477fab4c6e14bfda722bb658c475e50586687dd6441c69cf2e370d181

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file was detected by ClamAV as Pdf.Phishing.Trojan and flagged by an ML classifier, indicating malicious intent. It contains numerous links pointing to compromised WordPress sites and other disposable hosting, forming a link farm. While no scripts were explicitly extracted, the PDF structure and link farm indicate it's likely used to redirect users to malicious sites for phishing or further malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9835

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://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/75d5b4dea3845c6f304ba6cdb5e29ff9/2835211288.pdf In PDF document text
- http://gloucesterclassof81.com/clients/23558/File/52567872681.pdfIn PDF document text
- http://thaiboxes.com/piceditor/file/61374571569.pdfIn PDF document text
- http://ever0036.com/assets/uploads/ckedit/files/20210612094757.pdfIn PDF document text
- http://cga82.com/admin/File/robuvimul.pdfIn PDF document text
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607bf3735cd2a---laduzenowenomike.pdfIn PDF document text
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4c70989506---6471494474.pdfIn PDF document text
- http://savitapiti.org/ckfinder/userfiles/files/likopesujokogonofuv.pdfIn PDF document text
- https://feldmann-spedition.de/pics/userfiles/file/susizekotutunimabogidojir.pdfIn PDF document text
- https://dafelia.com/files/luxupapevodagizadojego.pdfIn PDF document text
- https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/9940fd21e762e2d7d24e3cde1cb2819b/62591993107.pdfIn PDF document text
- https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/e5b7d4894c880e1c49311bbc13236f75/5862774080.pdfIn PDF document text
- https://www.beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/a233f43aa2855da299ea0375e8ad7edd/fofegudavobeledamas.pdfIn PDF document text
- http://hoondb.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609034b6de8e8---30183234522.pdfIn PDF document text
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/99abf1f16ac55bb4d1ea9402c0aac6a1/89727109996.pdfIn PDF document text
- https://infrastone.com/userfiles/files/xiruxukuvuzefeneri.pdfIn PDF document text
- https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/c4730ece7bdeca95310585e19c534d27/77857404649.pdfIn PDF document text
- http://oprfhs70.com/clients/879438/File/16801147536.pdfIn PDF document text
- https://yingzhaoliuart.com/upload/file/33564715237.pdfIn PDF document text
- http://footstepfloor.com/upfiles/files/31794751051.pdfIn PDF document text
- https://kme.pl/global/app/webroot/uploads/file/16224536709608.pdfIn PDF document text
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aa08f27d42e---zateludagojewi.pdfIn PDF document text
- https://alsultantrading.ae/userfiles/files/voxenamamowibiteroloxeru.pdfIn PDF document text
- http://boathousebrokerage.com/userfiles/file/11509101226.pdfIn PDF document text
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/16076580ea842e---57039736515.pdfIn PDF document text
- http://ipsgroupjjn.org/userfiles/file/pekuzemiriwibejemogoka.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=how+to+find+aos+in+standard+formPDF 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_off00011165.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11165	17500 bytes
SHA-256: `abc3f13f9924e5a54f4dda8b12974803913f135b3215be24fbf827bef94a22e1`
`font_01_sfnt_off00013f5b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13F5B	10416 bytes
SHA-256: `bb07f149eeae635c7bec5ad447760f314838c48c1bfa9ffc9169871c9e1c4ce7`
`font_02_sfnt_off000156eb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x156EB	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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