Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ad91a384a56a3c9…

MALICIOUS

PDF

320.7 KB Created: 2022-03-23 12:26:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-20
MD5: 97594949be8413da8ff660eadbc2072b SHA-1: 9c1c8f7069db88f6f665c184088086fa0d92a9bf SHA-256: 9ad91a384a56a3c9487ab2a34e4e6787882ee245b4bf074c7528e93496875bf9
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4905

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://yubit.co.za/XSRYdR1H?utm_term=building+web+apps+with+wordpress PDF link annotation
    • https://siltri.com/fck_upload/file/72591938728.pdfIn PDF document text
    • http://scandirent-new.ru/uploads/assets/file/devumamujobemafiv.pdfIn PDF document text
    • http://bellina.pl/userfiles/file/wodum.pdfIn PDF document text
    • http://htbestcomputer.com/media/ftp/file/sikimosekifo.pdfIn PDF document text
    • http://kientrucmoi.com.vn/admin/kcfinder/upload/files/nunazajapewumilomozov.pdfIn PDF document text
    • http://barahi.com/assets/userfiles/files/63271335176.pdfIn PDF document text
    • http://kunbot.com/upload/files/92030508858.pdfIn PDF document text
    • https://akproauto.com/nbloom/fckuploads/file/45181928247.pdfIn PDF document text
    • http://adaptiv-rb.ru/uploads/files/guwevamudasariwuj.pdfIn PDF document text
    • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16221892539120---41962424477.pdfIn PDF document text
    • http://wixoon.hu/upload/file/xovijonixajuk.pdfIn PDF document text
    • https://bentonhomebuilders.com/kcfinder/59169748774.pdfIn PDF document text
    • http://sk4education.com/ckfinder/userfiles/files/78186606040.pdfIn PDF document text
    • http://blueleaves.ru/userfiles/file/4553407827.pdfIn PDF document text
    • https://pemaboutiquehotel.com/assets/userfiles/files/sirak.pdfIn PDF document text
    • http://topclinique.ma/kcfinder/upload/files/zaxujuvedigofuvumujik.pdfIn PDF document text
    • http://rootbeadmill.com/upload_fck/file/2022-3-23/20220323055426508831.pdfIn PDF document text
    • http://fmsmpkbr.ru/files/files/35335160415.pdfIn PDF document text
    • http://portamarioarchitetto.eu/userfiles/files/13074636498.pdfIn PDF document text
    • http://webhoctot.com/app/webroot/uploads/files/45982406228.pdfIn PDF document text
    • http://satyamtracparts.com/userfiles/file/53815739761.pdfIn PDF document text
    • http://asu78.ru/userfiles/file/towujuvejidasujoso.pdfIn PDF document text
    • http://spbmedax.ru/sites/default/files/uploads/54988676910.pdfIn PDF document text
    • http://sancheonglittletheaters.com/upload/userfiles/2022/02/files/220207010026.pdfIn PDF document text
    • https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16219377c55d19---15310472944.pdfIn PDF document text
    • http://droneducational.com/admin/userfiles/file/kuxogu.pdfIn PDF document text
    • http://miu.by/userfiles/78521860479.pdfIn PDF document text
    • http://mictrogiang.com/userfiles/files/71025646984.pdfIn PDF document text
    • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1623ac1cd1a6fa---kakasol.pdfIn PDF document text
    • http://elliptical-trainers.ru/ckfinder/userfiles/files/8720776553.pdfIn PDF document text
    • http://robvancampen.nl/userfiles/file/71800727365.pdfIn PDF document text
    • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/162386aef6bac7---23739488976.pdfIn PDF document text
    • http://audyt.rowerowaszkola.pl/imgturysta/files/jekiwisof.pdfIn PDF document text
    • http://aroma-es.site/yamituki-n/uploads/files/95579685944.pdfIn PDF document text
    • http://elitacasa.it/images/file/tivelizigifoxesenan.pdfIn PDF document text
    • https://xyoaa.org/sites/default/files/files/95053367759.pdfIn PDF document text
    • http://stowarzyszeniemalyksiaze.eu/img/upload/files/73932620032.pdfIn PDF document text
    • http://tks-forever.com/upload/2022/03/11/file/38218228304.pdfIn PDF document text
    • http://biopole-clermont.com/uploads/gestion_contenu/files/30107850622.pdfIn PDF document text
    • http://miyagi.chi-kara.net/Upload/files/labarorifugavarep.pdfIn PDF document text
    • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/407ef2553fad8ac6af6c7e8204cf0009/jenikufazegetimugum.pdfIn PDF document text
    • http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1622307914a2d9---zanomifuwobopive.pdfIn PDF document text
    • https://teranor.com/ckfinder/userfiles/files/22761198059.pdfIn PDF document text
    • http://barahi.com/assets/userfiles/files/49904294068.pdfIn PDF document text
    • https://www.champagne-auge-dascier.com/ckfinder/userfiles/files/99760192482.pdfIn PDF document text
    • https://ev-owners.jp/userfiles/files/mupag.pdfIn PDF document text
    • http://techbico.vn/uploads/image/files/31017347508.pdfIn PDF document text
    • http://asremajazi.com/uploads/files/lajonedavezobeduke.pdfIn PDF document text
    • https://refmexgl.com/web/uploads/assets/userfiles/file/38499960687.pdfIn PDF document text
    +8 more URL(s)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00047725.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47725 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_01_sfnt_off00048d29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48D29 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004a450.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A450 11048 bytes
SHA-256: ea5a682c3c274eebe280611f491b95fecbac000691961df0ae7bb99dc0520cb1
font_03_sfnt_off0004bda7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BDA7 19692 bytes
SHA-256: 691892a5c5f262d3b7f148d316e60a447e2200efac988c98633ff3f80fbb480c