Malicious PDF — malware analysis report

Static analysis result for SHA-256 191b2a6407377d7d…

MALICIOUS

PDF

81.5 KB Created: 2021-10-06 04:06:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: c2240b92d3e922492de0202a555892bc SHA-1: a462e5da6887d6a9fa16e15d00516e6eb4532528 SHA-256: 191b2a6407377d7d6b0e37ae435a3536765e6f0e45e4f565a22e97f672752737
156 Risk Score

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
  • 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://mobilaide.com/upload/editor/file/sisiranojofabemuviveken.pdf In PDF document text
    • https://nepalonetours.com/userfiles/files/13180429396.pdfIn PDF document text
    • https://afayl.com/userfiles/file/73743783920.pdfIn PDF document text
    • http://premiercontractinginc.com/files/file/92492677243.pdfIn PDF document text
    • https://radmangroup-ye.com/rgfiles/file/mumokeludel.pdfIn PDF document text
    • http://danchrisjewelry.com/userfiles/file/72673074011.pdfIn PDF document text
    • https://landviewdesign.com/userfiles/file/16231518100.pdfIn PDF document text
    • http://sooam.com/files/fckeditor/file/84566948561568032c9e1d.pdfIn PDF document text
    • http://mini-garden.ru/userfiles/file/vomumofewelipinepegim.pdfIn PDF document text
    • https://alev.az/userfiles/file/moxuz.pdfIn PDF document text
    • http://surmounttravel.com/userfiles/files/93733878054.pdfIn PDF document text
    • http://tetobox-budapest.hu/uploads/files/xitesaxovumikibujoz.pdfIn PDF document text
    • http://alfavs.eu/userfiles/file/surezanademokawasitajekis.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135fa0fe5187---25912709050.pdfIn PDF document text
    • http://pelletier-tp.fr/ckfinder/userfiles/files/78398671047.pdfIn PDF document text
    • http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615884c413ea2---julovutajenidunuzutonut.pdfIn PDF document text
    • http://neoneofitou.com/ckfinder/userfiles/files/telajadepob.pdfIn PDF document text
    • http://nuovojob.com/userfiles/files/66468401006.pdfIn PDF document text
    • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4fdc7ca9d45f72a3866fe3ee4ad57f7f/37630830514.pdfIn PDF document text
    • https://onlineadda.organicemall.com/ckfinder/userfiles/files/falatiruregusu.pdfIn PDF document text
    • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16152a9e4da853---rikokibonokevapepop.pdfIn PDF document text
    • http://omnoiptv.com/outscapes/admin/ckeditor/uploads/ck/files/78464210459.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=whooping+cough+effects+in+later+lifePDF 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.

FilenameKindSourceSize
font_00_sfnt_off0000d993.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD993 10852 bytes
SHA-256: 7865f311d6f9d095d0b57825a87a118a59dd56c84a3091fdf1ae56bd5eec1cab
font_01_sfnt_off0000f2ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2AC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010abe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ABE 17344 bytes
SHA-256: fd931de4034c8863c8f21192a1a95351c03594ce8810179a7783066b799ec5e5