PDF malware analysis — malicious · aa836b9ac85fca41

MALICIOUS

PDF

74.2 KB Created: 2022-05-17 21:36:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06

MD5: 5c188a34614399ca45fea9d805ff785a SHA-1: 4172c6e820a61928ab7fb2358dc4ef27731a3db6 SHA-256: aa836b9ac85fca41cb3a0e045ce69ce38503c1bd3ee27983a18d26616865f0d9

186 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9992

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
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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://lazav.co.za/YmrXLWy8?keyword=present%20perfect%20simple%20time%20expressions%20practice%20sheets%20pdf PDF link annotation
- http://kahasat.cz/data/file/kewetimezalisofufumekubog.pdfIn PDF document text
- https://wopaxosidavi.weebly.com/uploads/1/3/4/7/134732603/8721140.pdfIn PDF document text
- http://dxqzx.com/ckfinder/userfiles/files/20220319_042038.pdfIn PDF document text
- https://marosme.ro/hirek/file/naxejowiwuwemomox.pdfIn PDF document text
- https://vezutokabev.weebly.com/uploads/1/3/4/7/134758566/texapu.pdfIn PDF document text
- https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/162205c950a9a9---11724427871.pdfIn PDF document text
- https://wonusawe.weebly.com/uploads/1/3/4/4/134481200/6b5c6feacd4.pdfIn PDF document text
- https://corpus.bg/files/fck/file/37887922794.pdfIn PDF document text
- http://wsospice.org/uploads/userfiles/file/file/56143129803.pdfIn PDF document text
- https://jigaxokere.weebly.com/uploads/1/3/4/6/134622899/murefipokexodanop.pdfIn PDF document text
- https://astur.travelshops.pl/userfiles/file/70330133199.pdfIn PDF document text
- http://full814.com/upload/files/negezagafujidamonase.pdfIn PDF document text
- http://js-space.de/userfiles/file/tinanefufipo.pdfIn PDF document text
- https://kamilunumunubi.weebly.com/uploads/1/3/4/4/134486367/1ecc7fde3d46.pdfIn PDF document text
- https://pabixiwirixe.weebly.com/uploads/1/3/1/0/131071256/7819476.pdfIn PDF document text
- http://sten.kr/club/data/userfiles/file/20220307111024.pdfIn PDF document text
- http://becucci.it/userfiles/files/90394355739.pdfIn PDF document text
- https://bodzlomu.com/userfiles/file/89448951338.pdfIn PDF document text
- https://fier-forjat-valimet.ro/ckfinder/userfiles/files/fokikaziwos.pdfIn PDF document text
- https://zajolapa.weebly.com/uploads/1/3/0/7/130776493/kajiv-zesurewigogelir.pdfIn PDF document text
- https://pefobasor.weebly.com/uploads/1/3/4/1/134131397/tegokapunopapomon.pdfIn PDF document text
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623c3edae7b03---91780482240.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_off0000bc28.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBC28	10988 bytes
SHA-256: `53a9e29eec5d41a79ae5bdf01241f8e4a9836dced0ed1b2a7b42576959f85809`
`font_01_sfnt_off0000d582.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD582	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off0000ed94.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED94	17216 bytes
SHA-256: `4c910011e68e397b088fafa54d78c34f96f8575e054d1183c0377c37b7b74cbe`

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