PDF malware analysis — malicious · e072c24a0924c9cb

MALICIOUS

PDF

82.2 KB Created: 2021-07-01 17:53:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05

MD5: 6c24809d7f50e1c8d0f041797a9d5cf7 SHA-1: bc0cb63e5e8af69dcfaf2173b666cbbe8d3d1e65 SHA-256: e072c24a0924c9cba8251b8dcf15e833bbc291371794cdcd6aa2f788b2585040

164 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan. It contains numerous links pointing to compromised WordPress sites, suggesting a link farm intended to distribute further malicious content. The ML classifier also strongly indicated maliciousness, supporting the phishing and trojan detection.

Machine Learning

Nyx PDF Classifier malicious score 0.9846

Heuristics 7

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.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/735860b15054770cb491f5b997506981/resururotofolitovaradito.pdf In PDF document text
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/ff396b6a096c22caa5176002e82cc6a9/96173354136.pdfIn PDF document text
- http://st-ark.it/userfiles/files/xujunavisatetunaruko.pdfIn PDF document text
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9d6af92286---96099755314.pdfIn PDF document text
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c10c823d6ca---51826963471.pdfIn PDF document text
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160ac10eeb8165---22457069109.pdfIn PDF document text
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a219a974aa---vofukudewumog.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1608f7b1189732---86525864704.pdfIn PDF document text
- https://ceccarbotosani.ro/userfiles/file/77802279399.pdfIn PDF document text
- http://cainghienbinhduong.com/uploads/userfiles/file/49884786439.pdfIn PDF document text
- https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16083f7795a9ee---81692771161.pdfIn PDF document text
- http://ylgems.com/file_media/file_image/file/72814029271.pdfIn PDF document text
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/16091ee47ced84---16922483858.pdfIn PDF document text
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/u0ke6b589fn8oaugh8icsjun99/96942255636.pdfIn PDF document text
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/7d2c89b2d99e14c874535765fce1c0b2/zufuxelomaxewa.pdfIn PDF document text
- http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c8fdd2e485a---67388865133.pdfIn PDF document text
- https://garyjetcenter.com/wp-content/plugins/super-forms/uploads/php/files/48b16fa59311db6ea15a4a71e18c7739/43838993643.pdfIn PDF document text
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4b7cf6525f---25836438613.pdfIn PDF document text
- https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/db1d1069d850ec7b864eb085008caf87/99162761846.pdfIn PDF document text
- http://adamlegal.com/userfiles/file/bubebomiviwonosumu.pdfIn PDF document text
- https://gdr.co.il/wp-content/plugins/super-forms/uploads/php/files/a99df1163441d97f590cfb199080f2c9/dogofipobutepunidaluvaf.pdfIn PDF document text
- http://cdmatik.com/uploads/file/juwerixa.pdfIn PDF document text
- http://trevelci.ru/ckfinder/userfiles/files/ditevakaf.pdfIn PDF document text
- https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/beb4ba4c1cbf9d5c7d955e15ea236d75/vujetugiporabipajezizoja.pdfIn PDF document text
- https://www.carrentchiengmai.com/files/87263545883.pdfIn PDF document text
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/160943de0bd744---tifabaxemigaser.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=s+das+clinical+surgery+13th+edition+pdf+free+downloadPDF 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_off0000dadb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDADB	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000f2ed.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF2ED	17216 bytes
SHA-256: `e498e0fa794abcc2a586440db3f5827d84b456eea95bb0b05e8b78ee8f125f50`
`font_02_sfnt_off00012010.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12010	11496 bytes
SHA-256: `4a136e1e86fe11effbf3d05354aa9954cecda8b4ff85f6a3f70ca704fc313c97`

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