Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b5bafe493c2a6e…

MALICIOUS

PDF

83.8 KB Created: 2021-10-16 02:58:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 6942b4cbf80ca428df2fb33f62e94c4a SHA-1: d741be8f2f6d8cfcd64c638627e2cb5776413584 SHA-256: 72b5bafe493c2a6e6b98dd670e92d70dd8de1fb94029c859971ca0dbf71e9eb8
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://gilbertems.com/videos/file/vinamel.pdf In PDF document text
    • http://hoangle.vn/uploads/userfiles/file/23841086347.pdfIn PDF document text
    • https://rheinfurth.de/userfiles/file/44732349671.pdfIn PDF document text
    • https://proetcontra.hu/userfiles/file/ramofewawof.pdfIn PDF document text
    • http://bukvoznaika.ru/ckfinder/userfiles/files/murikexubufewifipex.pdfIn PDF document text
    • http://trevorhannant.com/8933697419.pdfIn PDF document text
    • http://retroldn.com/userfiles/file/49755971485.pdfIn PDF document text
    • http://studiozoppini.com/userfiles/files/61219666706.pdfIn PDF document text
    • http://dongshengcable.com/images/upload/File/41218007493.pdfIn PDF document text
    • https://printjet.pl/pliki_user/File/dilezad.pdfIn PDF document text
    • https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/16159b7a79f8c3---kurawof.pdfIn PDF document text
    • https://eliteplacementagency.com/uploads/files/31760529647.pdfIn PDF document text
    • https://itchanoi.vn/uploads/news_file/jepuxage.pdfIn PDF document text
    • https://music-group-store.com/upload/files/68984552110.pdfIn PDF document text
    • http://derkwoo.com/upload/editor/files/68430709559.pdfIn PDF document text
    • https://ssekolkata.com/ckfinder/userfiles/files/maxiziruwiralomas.pdfIn PDF document text
    • http://bobas24.pl/Upload/file/valerawukelal.pdfIn PDF document text
    • http://www.impactit.in/ckfinder/userfiles/files/nakopegez.pdfIn PDF document text
    • http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/161507ce4d8a89---donazumutofu.pdfIn PDF document text
    • http://tsuiteru66.com/userfiles/file/78541383891.pdfIn PDF document text
    • http://epilia.com/upload/FCKEditorfile/40135934829.pdfIn PDF document text
    • http://unseretochter.com/images/file/xijunugoxidekoju.pdfIn PDF document text
    • http://www.hgbehringer.de/img/files/files/58642711121.pdfIn PDF document text
    • http://kabinet.puzat.ru/marafon/uploads/files/murotidixakodosakevulidoz.pdfIn PDF document text
    • https://nobelboya.com/userfiles/file/8485833215.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/HKUGBsJGI0E/uplcv?utm_term=how+do+u+change+your+fortnite+name+on+switchPDF 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_off0000e09a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE09A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f8ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8AC 18484 bytes
SHA-256: 55c19be32b79d24c68483833301a9489be1941526944c5c76a9e47e99033ac9d
font_02_sfnt_off000127c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127C7 11168 bytes
SHA-256: bafaace905c6cfdb27f8aa02258fd845f04957d18e14ab20e7dfaa23a8436c1c

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