PDF malware analysis — malicious · d3c8dc1724e342ef

MALICIOUS

PDF

84.2 KB Created: 2021-09-11 21:49:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16

MD5: 0de21e077aece3c7a0f2fb102b27e5db SHA-1: ca3056edd69c2b9b360b8d4ca75ca152b4d9601e SHA-256: d3c8dc1724e342ef5bc038005bb6a793b6abd3326d1f6717ed888fdd5578d989

134 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains numerous embedded URLs pointing to disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' heuristic further supports the phishing lure. While no scripts were explicitly extracted, the overall structure and heuristics indicate an attempt to trick users into downloading a secondary payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9981

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 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.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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://smidgel.ru/uplcv?utm_term=scynix+dias+generator+download PDF link annotation
- http://costanzolegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nideti.pdfIn PDF document text
- http://bindashnews.com/userfiles/file/21432943161.pdfIn PDF document text
- http://csc0451.com/userfiles/file/20210904205347_ia5yao.pdfIn PDF document text
- http://ctyrkolky-gamax.cz/data/dokumenty/geweposelo.pdfIn PDF document text
- http://szjwwj.com/userfiles/file///xejugamesevudigine.pdfIn PDF document text
- https://huuphongplastic.vn/uploads/images/files/23475496477.pdfIn PDF document text
- https://www.milestonesmn.org/ckfinder/userfiles/files/jisonepujudujisif.pdfIn PDF document text
- http://scvumaichiramen.com/uploads/files/49437165784.pdfIn PDF document text
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133a6d62bd64---patumujubiwesodigi.pdfIn PDF document text
- http://sriraghavendratemple.com/ckfinder/userfiles/files/pijadowe.pdfIn PDF document text
- http://whatifitspossible.com/ckfinder/userfiles/files/venaz.pdfIn PDF document text
- http://magooferta.pl/uploads/fck/file/jipumovevanuxalopes.pdfIn PDF document text
- https://locktactyuma.com/ckfinder/userfiles/files/dixepoxikotefuladevi.pdfIn PDF document text
- http://lnyuanzong.com/uploads/files/20210905055710.pdfIn PDF document text
- http://laboratorioshamalab.com/userfiles/file/34865131811.pdfIn PDF document text
- https://zippy-inc.com/app/webroot/userfiles/files/49712961388.pdfIn PDF document text
- https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/drsa9uetl4t9m9bh8a9kvnghm6/zozigojarezuniru.pdfIn PDF document text
- http://ordinate-ltd.com/file_media/file_image/file/99173358261.pdfIn PDF document text
- http://sipzip.com/userfiles/file/70262492139.pdfIn PDF document text
- https://bhandarisurgical.com/ckfinder/userfiles/files/25935132217.pdfIn PDF document text
- https://nepalonlineexam.tisaracademy.com/userfiles/files/zonazekavazalopetasuzop.pdfIn PDF document text
- https://pushtypathshala.com/demo/aims/files/images/files/molidifejanopadatixot.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_off0000e113.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE113	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000f925.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF925	18676 bytes
SHA-256: `72929e080c33fbf23c832d8a56b0e3c274b923f475192b5482bccc6af2cc1e03`
`font_02_sfnt_off00012a15.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12A15	10924 bytes
SHA-256: `8899689b9d15167b3eeb88140984fa46c743055c8461c1c4bd7cd3fe8963539d`

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