PDF malware analysis — malicious · f104f3ad6d68088b

MALICIOUS

PDF

125.9 KB Created: 2021-07-07 00:03:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05

MD5: ae8465f3b42d91e2390de831d436e30b SHA-1: 9dd57554f29252cad66be17b6d611a5e23502738 SHA-256: f104f3ad6d68088b92ca47cd513c05362a307d08e516147237eb17cc56045283

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous links pointing to compromised WordPress upload directories, suggesting it's part of a link farm designed to distribute malicious content or manipulate search engine results. The document body is unreadable, but the heuristics strongly indicate a phishing or malicious redirection attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9903

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://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/755e1614de5a807976007053405c3479/88312459331.pdf In PDF document text
- https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/utsc6bpe466n71rbhrfa8i69qf/40538988673.pdfIn PDF document text
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa0721bfd78---sevozevil.pdfIn PDF document text
- https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/a801bc185f745d701bd92ed7c24c5ec3/rijutukikabow.pdfIn PDF document text
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4f0c6af298---2318838750.pdfIn PDF document text
- https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/d867f17b972d26ea1d1bbded9fa45ede/5452205449.pdfIn PDF document text
- http://decom.pro/admin/ckfinder/userfiles/files/87108746206.pdfIn PDF document text
- http://www.sempresaude.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c4ac631e80d---98095830108.pdfIn PDF document text
- https://aslimitada.com/userfiles/file/29448363906.pdfIn PDF document text
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/6344e43a6ca436a635e20c5c34313e28/82603368913.pdfIn PDF document text
- https://movesforfree.com/wp-content/plugins/super-forms/uploads/php/files/b7hvh5sbqm68mapd1l0vq0rtj7/46024137846.pdfIn PDF document text
- http://b-solutions.net/userfiles/file/37953367386.pdfIn PDF document text
- http://www.pilonidalsinus.gen.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607ae6db428cf---52028333025.pdfIn PDF document text
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607adcd12588d---buwotajanigonafokeso.pdfIn PDF document text
- http://sugarfree-gelato.com/upload/file/43743777753.pdfIn PDF document text
- https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/4f8920a2fb302ff199616c4cf6f5d451/64540006468.pdfIn PDF document text
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/ed24a8a2edfe0f7996bcee3b1ec5facd/xelutorejim.pdfIn PDF document text
- https://balaji-technology.com/userfiles/file/83295647336.pdfIn PDF document text
- http://capitaldanceacademy.com/userfiles/files/rovoxiz.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a0857f335b---vomabulefusavev.pdfIn PDF document text
- http://bluekeydigital.com/images/pic/file/16353216213.pdfIn PDF document text
- https://artbynela.com/uploads/file/15403728055.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=famous+dancers+that+started+latePDF 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
`stream_005_off0001cfc6.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x1CFC6	17396 bytes
SHA-256: `b8c8f5d1ca23c4322e2cad8b1db4fd365b1713e371ddae2ca3d624c2e0e1ee5e`
`font_00_sfnt_off00016b7f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x16B7F	21440 bytes
SHA-256: `2d82f0cc1a0403f1395d6b46869a2388a4429f7d9836ce67b19ec96c1a0fb392`
`font_01_sfnt_off00019f99.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x19F99	10620 bytes
SHA-256: `c62514d1a024af86a74ad5aaa8e39fd904bbc2f41a53b08634406c0df85fac03`
`font_02_sfnt_off0001b7b5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1B7B5	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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