Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8dbecfcdf21b9d…

MALICIOUS

PDF

154.9 KB Created: 2021-12-02 08:20:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: a1aa2776b5ce16155a3dcc236b3c6d89 SHA-1: ef56acb036f5e99d84c5ab7ef24e09d8095b3e61 SHA-256: aa8dbecfcdf21b9dca6d88eea589b898abbe57c542b40203df3f1136ae5f9ef0
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9526

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://aihr-iadh.org/uploads/FCK_files/file/wejovotowadof.pdf In PDF document text
    • http://richmore.kr/uploadfile/fckeditor/file/32654221627.pdfIn PDF document text
    • https://highfieldhousehotel.net/nbloom/fckuploads/file/16780065925.pdfIn PDF document text
    • http://planao.com/ckfinder/userfiles/files/55124155591.pdfIn PDF document text
    • http://medwin.kr/userData/board/file/xojupenifegaxuperezi.pdfIn PDF document text
    • http://mazraeir.com/images/upload/files/53899727034.pdfIn PDF document text
    • http://1hozain.ru/files/userfiles/files/lazojenox.pdfIn PDF document text
    • https://dasyueshan.org/userfiles/file/86843953641.pdfIn PDF document text
    • http://hyundai-baoloc.com/luutru/files/derexijuwimejotikemosi.pdfIn PDF document text
    • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618bfabc13150---mowudefegojibelupalu.pdfIn PDF document text
    • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/161884cdba6bff---fuxukedulatitu.pdfIn PDF document text
    • https://facades-et-traditions.com/actualites/file/jemere.pdfIn PDF document text
    • http://mellorymotors.ru/admin/ckfinder/userfiles/files/13112074548.pdfIn PDF document text
    • https://cpc-serbia.org/js/files/jurunedawarin.pdfIn PDF document text
    • http://pro-roubenky.cz/UserFiles/File/napagurinefopivadatotiv.pdfIn PDF document text
    • http://dsagco.com/Upload/file/vigufegaxoruriburupofa.pdfIn PDF document text
    • http://cgl.lu/userfiles/files/36678466922.pdfIn PDF document text
    • http://aromamahabaleshwar.com/ckfinder/userfiles/files/xubewesudeniriranuwez.pdfIn PDF document text
    • http://peak-experience-japan.com/images/blog/file/tifojorexezolud.pdfIn PDF document text
    • http://kuresi-kaitori.com/upload/content_pic/files/gazarujuk.pdfIn PDF document text
    • http://thaiboxes.com/piceditor/file/luzepowusoxitalanipivop.pdfIn PDF document text
    • http://metamorfoza-krosno.pl/userfiles/file/kutasedilotozavefib.pdfIn PDF document text
    • https://aristi-trap.com/upload/users/files/xapixezugukix.pdfIn PDF document text
    • http://laguna.piyawatgroup.com/images/files/jaxixelu.pdfIn PDF document text
    • https://laplacedesstores.com/upload/file/sadunetemiturizil.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/tgwjJlsMqHc/uplcv?utm_term=tales+of+maj%27eyal+summoner+guidePDF 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_off000201a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x201A7 10940 bytes
SHA-256: 945b1789e25e8806bcabcf24cfb42f6aef946cf2ae5a34af40d9c73cbe1f94ef
font_01_sfnt_off00021ac8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21AC8 16840 bytes
SHA-256: 7d53ce0f1f173808f7d7fb2c67d94694b8969d04c3da919140b2a74276e46ac8
font_02_sfnt_off00024620.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24620 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336