Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e60575d086901d7…

MALICIOUS

PDF

81.7 KB Created: 2021-09-19 15:08:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 0bbf22f9f1726006a3cb79fca261c8e1 SHA-1: d6416fa1da0594366349ed13a846186d3bea6564 SHA-256: 8e60575d086901d713ca552b3a098ce49c0bb95ac1ebbbacd29255950c289e58
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing lure. It contains numerous external links, some pointing to compromised WordPress upload storage, and a visual download button. The document's structure suggests it is designed to trick users into clicking links or downloading files, likely leading to further malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

Heuristics 8

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://infrive.ru/uplcv?utm_term=share+files+to+mobile+from+pc PDF link annotation
    • http://chemtron-vostok.ru/media/file/vekuzagadanumew.pdfIn PDF document text
    • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135a66bb7565---zefipaxo.pdfIn PDF document text
    • http://neoneofytou.com/ckfinder/userfiles/files/dodunamu.pdfIn PDF document text
    • http://penzion-u-zamku.cz/files/file/54063102906.pdfIn PDF document text
    • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161377bbf52fc9---41544871772.pdfIn PDF document text
    • http://tea-ra.com/user_data/upload/save_image/files/7899112381.pdfIn PDF document text
    • https://semut73.com/contents/files/23990738196.pdfIn PDF document text
    • https://al-wesam.com/userfiles/files/42931391796.pdfIn PDF document text
    • http://jilienjrubin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/1890976401.pdfIn PDF document text
    • http://fotostudiovaccari.it/userfiles/files/24600114891.pdfIn PDF document text
    • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/16138dbe976635---vefogiwifagododigak.pdfIn PDF document text
    • https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613d7981a1911---33240062682.pdfIn PDF document text
    • http://vsrru.ru/userfiles/file/kigakuzowes.pdfIn PDF document text
    • http://www.eau-msu.ru/ckfinder/userfiles/files/nenubeguveniz.pdfIn PDF document text
    • https://polandpools.com/contents/files/87120846835.pdfIn PDF document text
    • http://kxnjl.com/userfiles/files/54460994183.pdfIn PDF document text
    • http://coutleelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/17748191905.pdfIn PDF document text
    • http://hermandadperdon.es/userfiles/file/tasupuxunux.pdfIn PDF document text
    • https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/36393465021.pdfIn PDF document text
    • http://uzmansporzeminkaplama.com/resimler/files/43703836629.pdfIn PDF document text
    • http://thangmayedex.com/webroot/img/files/64265176320.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.

FilenameKindSourceSize
font_00_sfnt_off0000dbde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBDE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f3f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F0 17332 bytes
SHA-256: c954ac6de5a0953aacd2e382057e77ac4e5e1d70c9c4a66b7e991a65f5c9e8fc
font_02_sfnt_off000120fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120FB 10856 bytes
SHA-256: a1c28503b0e822f16856716a888f3ed84daf9d49eccd99dc0a00b5e8ddf659c2

Open this report in the interactive analyzer, or submit your own file for analysis.