PDF malware analysis — malicious · 941d4ce6fa2d4c0b

MALICIOUS

PDF

73.6 KB Created: 2021-05-14 22:26:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12

MD5: a5b5266ccfc54230ea72bf6e393a81a0 SHA-1: b14d81b6c45a3ce98393c0838f8edef5b09dafcd SHA-256: 941d4ce6fa2d4c0b3d94ee213ac6cdb66f200f7f6994c49bf43b1df38cf827b2

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/6alh4ssaarplnsi7uaq30cr9qa/jubesafujixugonanapo.pdf In PDF document text
- https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/36abb8a2efe6bd92ba374cbac9e1515f/54791819840.pdfIn PDF document text
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/904b21834ebc172bce8f3788f2372e92/41586525707.pdfIn PDF document text
- https://beaumont-residence.com/wp-content/plugins/super-forms/uploads/php/files/292141si80p3ab4r5iugs18468/88205006260.pdfIn PDF document text
- https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/89abe5b755b8a3aee997e932bb796926/wowurowiwanape.pdfIn PDF document text
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/16091aba0ed05e---jolozugubekidaza.pdfIn PDF document text
- http://abpaluso.com/upload/file/juzuzanawetupinedenib.pdfIn PDF document text
- http://firegallery.ru/img/upload/838906454.pdfIn PDF document text
- https://space1500.com/wp-content/plugins/super-forms/uploads/php/files/6c5ece87b0aeeb87b5e27bc47204942a/70343996819.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/16082fedd1a966---nujutoromixonitowituw.pdfIn PDF document text
- https://arvikabc.com/images/uploadedimages/file/26760315155.pdfIn PDF document text
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/16074976a60627---kezamusekil.pdfIn PDF document text
- http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/o9bb8eg9m2fcmi0c7irpnv3mk0/nadizevefikosenemagevumax.pdfIn PDF document text
- https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/5f32a7b0a26a3a63a0b0d272bfb51ccc/13387750644.pdfIn PDF document text
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/24f90c4cdf925a420a63138e23b9be9a/54337119157.pdfIn PDF document text
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608771cc834c3---869469880.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=perforated+sheet+manufacturers+kolkata+west+bengalPDF 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d4ae.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD4AE	5564 bytes
SHA-256: `43cf7e0f82840646f83c7f0b446f357b5f781054b4e05d38fd9b33cea4e28268`
`font_01_sfnt_off0000e77e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE77E	10508 bytes
SHA-256: `93b7bc6a97fe7ce99ae4229184b0b5e52bd6c710415e8d2c46818af4f801ba62`
`font_02_sfnt_off00010b26.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10B26	4324 bytes
SHA-256: `cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34`

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