Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dab8b183bed36df…

MALICIOUS

PDF

91.3 KB Created: 2021-08-08 21:45:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 050237763d5f1bd1c6775ab3c11313a8 SHA-1: 4599c73b9434a758183eea7d526ebb83e074b7c9 SHA-256: 9dab8b183bed36dfc1495594de38e4a7fef488cc18de29efb5046d8ba718f32c
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV detection as 'Pdf.Phishing.Trojan'. It contains embedded JavaScript and numerous links pointing to compromised websites, indicating a phishing or malware distribution attempt. The presence of embedded JavaScript suggests it may be used to exploit PDF vulnerabilities or redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://seataclighting.com/wp-content/plugins/super-forms/uploads/php/files/cc99867bb4ea0cc57e90cc5d5d901e45/56211441529.pdf In PDF document text
    • http://argyler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607132e6147b5---kogurapamidan.pdfIn PDF document text
    • http://tipkeo.com/js/ckfinder/userfiles/files/99996606665.pdfIn PDF document text
    • https://aydin-elektrik.com/resimler/files/sugimakiwudigetu.pdfIn PDF document text
    • http://startent.ru/SITE/files/editor/file/12949185126.pdfIn PDF document text
    • https://vico-real-estate.com/ckfinder/userfiles/files/34099542776.pdfIn PDF document text
    • http://feuerwehr-mittenwalde.de/mediathek/files/fokimagobuxozudovudu.pdfIn PDF document text
    • https://voyageaventurenepal.com/upload/files/96212099461.pdfIn PDF document text
    • http://xn----7sbezcba9a5aggb3j.xn--p1ai/ckfinder/userfiles/files/43018655854.pdfIn PDF document text
    • http://desushibar.com/userfiles/file/makeb.pdfIn PDF document text
    • http://nesthomes.in/userfiles/file/zotapigoxo.pdfIn PDF document text
    • http://narnivet.com/userfiles/files/xurofipuwinuzokurap.pdfIn PDF document text
    • http://orosweb.hu/ckfinder/userfiles/files/53369237778.pdfIn PDF document text
    • http://toddfamilyreunion.com/clients/4/48/482e924d5a052aa4a0c13eb8a30e0bc8/File/71392098295.pdfIn PDF document text
    • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/1ohuea8ut3cs7d46cab3frmh92/2576419936.pdfIn PDF document text
    • http://fszhenjia.com/upfolder/e/files/20210704015239.pdfIn PDF document text
    • http://lws-realestate.com/userfiles/files/wuweradasifaropeba.pdfIn PDF document text
    • http://ventss.ru/userfiles/files/gomavaxevimijisifiludo.pdfIn PDF document text
    • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b2fc521c2c9---tetiramuzosutinijexoda.pdfIn PDF document text
    • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/3711c2ca0eb1e78b85ea33cc59d36e04/7163801381.pdfIn PDF document text
    • http://broadgatecapital.com/userfiles/file/65280455217.pdfIn PDF document text
    • http://emeraldcovepartners.com/_data/images/file/gafanifowudetid.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=how+to+install+bilstein+5100+adjustable+shocks+on+f150PDF 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_off0000fcc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC2 11320 bytes
SHA-256: ea7f776c3d95c53c0739dd2316458a813ea355e2d9192afafdea903d89fe381e
font_01_sfnt_off00011764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11764 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012f76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F76 18280 bytes
SHA-256: f83469fb8d1e2d04ff71708871551cafde657a055455ac394610f5b4826031ee

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