PDF malware analysis — malicious · 2b6631595250688d

MALICIOUS

PDF

87.1 KB Created: 2021-09-14 12:05:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17

MD5: 5a30bd8805c0a497460b17f14d84adaf SHA-1: 6414682ae2f22143e74bdb493fee86f5add3efab SHA-256: 2b6631595250688dbb8496750c6fae9689d1a3f9ff99a0429b19847fcbb17ece

126 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9956

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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.
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://archism.ru/uplcv?utm_term=assassin%27s+creed+3 PDF link annotation
- http://emannsltd.com/userfiles/fokerivu.pdfIn PDF document text
- http://studiotecnicobergamaschi.it/userfiles/files/tizogomadamaxobixo.pdfIn PDF document text
- http://shsuorui.com/uploadfiles/fckeditor/20210904/file/16307885601641.pdfIn PDF document text
- http://zentrumok.com/userfile/files/nadufizesofilesefoke.pdfIn PDF document text
- https://hydratrend.com/application/third_party/ckfinder/userfiles/files/85015402848.pdfIn PDF document text
- http://uptindia.com/newsimages/file///85585480091.pdfIn PDF document text
- http://holidayservicemarsala.it/userfiles/files/jawigerezab.pdfIn PDF document text
- http://stagelight.pl/userfiles/files/furugagenaduwemegadofe.pdfIn PDF document text
- http://myconnect-thailand.com/image/upload/File/bitotefulekewisori.pdfIn PDF document text
- http://futuralagoparking.eu/userfiles/files/pibozomamifuriloboxete.pdfIn PDF document text
- http://ngocphuocjsc.com/public/default/ckeditor/files/zonanewozew.pdfIn PDF document text
- https://badoza.net/userfiles/file/92099195995.pdfIn PDF document text
- http://suarezbeltran.com/aym_images/files/60375785171.pdfIn PDF document text
- http://cka-shiba.com/ckfinder/userfiles/files/7188510311.pdfIn PDF document text
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/06b51glquops0sn4pej191p946/bifelosobobu.pdfIn PDF document text
- https://globalcircle.club/userfiles/file/lesawikaruvexil.pdfIn PDF document text
- http://stimatacasa.eu/userfiles/files/5843748953.pdfIn PDF document text
- http://velomagazin.hu/UserFiles/file/80336951450.pdfIn PDF document text
- http://neboskreb-irk.ru/uploads/userfiles/files/2313984669.pdfIn PDF document text
- http://yurisolomko.com/userfiles/file/7446992988.pdfIn PDF document text
- https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/f689593501acd495ece6e60e4835ea9e/16908482645.pdfIn PDF document text
- http://homesunshinepharma.com/upload/files/69400759390.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_off0000ef5a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEF5A	10284 bytes
SHA-256: `36a85770118de5bbd94baf3708c25f5a26407789e08cc369d405a473ac2b6541`
`font_01_sfnt_off000106ac.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x106AC	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off00011ebe.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11EBE	18624 bytes
SHA-256: `009dd0efd9fdedbe6486b7ae7dcf64c7c06b597442fdd2ec56f4484b23b78154`

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