PDF malware analysis — malicious · 4c7e124856049917

MALICIOUS

PDF

89.9 KB Created: 2021-06-27 11:13:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-20

MD5: 6071923e33b212a0180db0c01c162076 SHA-1: b00c40239eadd169dfa8aa078444bc38e59be1f7 SHA-256: 4c7e124856049917bdce356f7171968e63d5fced55783f32878afc048a8aeb59

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically identified as a phishing trojan. It contains a large number of embedded URLs, many of which point to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious or phishing content. The PDF structure and URL patterns are consistent with phishing campaigns that rely on user interaction with embedded links.

Machine Learning

Nyx PDF Classifier malicious score 0.9937

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://medvor.ru/uplcv?utm_term=kate+in+waiting PDF link annotation
- http://michelesherrinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/81225344406.pdfIn PDF document text
- https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/cn59k3al05s4k92b0j8biotc34/sefusipib.pdfIn PDF document text
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/16095cbedbc105---bulesedalal.pdfIn PDF document text
- http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/qqg98i2fto7fqd5f2eu6kkrohb/69938474922.pdfIn PDF document text
- http://ubest.ru/images/file/72737547116.pdfIn PDF document text
- https://vishalahospitality.com/ckfinder/userfiles/files/33918888925.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/5b1f85cd3d7862e399f6d8ce8fd058b6/76970560713.pdfIn PDF document text
- http://lumieretvie.com/userfiles/file/bekilaxilomedu.pdfIn PDF document text
- http://bi-acaovo.com/upload/files/gurinaj.pdfIn PDF document text
- https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/gddh0nrv5edhe5rt8uens6nj4j/50891562412.pdfIn PDF document text
- https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4b3b836eb0---36960880550.pdfIn PDF document text
- http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbc91ae3e71---zonagabeduketelunonare.pdfIn PDF document text
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/cc5a77e316fa0c019af758efb2729813/93103430568.pdfIn PDF document text
- https://houstoncoinshow.org/FCKeditor/file/wakarufopanizavenegine.pdfIn PDF document text
- http://coimbrasoftware.hu/images/uploads/files/56416107817.pdfIn PDF document text
- https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160731ca592556---rigajuzifudunedebepa.pdfIn PDF document text
- https://www.dartmusicfestival.co.uk/wp-content/plugins/super-forms/uploads/php/files/237193d4fcb4c23f7f9a7fdfb2b41c3c/wizuvokulodutumapafaxawi.pdfIn PDF document text
- http://okmarin.ru/userfiles/file/55355095393.pdfIn PDF document text
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fbc8616f00---17240645501.pdfIn PDF document text
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609ec45c8326c---jojavavegepagora.pdfIn PDF document text
- https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/160913c09e52b2---selosogizi.pdfIn PDF document text
- http://villabrown.it/userfiles/files/zagukew.pdfIn PDF document text
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16076368a638bf---16249579379.pdfIn PDF document text
- http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/f2345fc9ac7ac437b46e7ba2a2d4800f/15098351605.pdfIn PDF document text
- http://seoulsquare.com/userfiles/file/jukufexupoxiladatafazumo.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_off0000fec8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFEC8	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off000116da.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x116DA	17444 bytes
SHA-256: `feed0df69b8b2bee34a1ce5a162b25a03d03d67f0845f01a8339393f64347173`
`font_02_sfnt_off0001448e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1448E	9928 bytes
SHA-256: `592f5c01dc321fa89094f34f17e2ce7bd388596065a5cec35e4ea19be11c1677`

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