Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3187cc6485832c3…

MALICIOUS

PDF

73.1 KB Created: 2021-06-11 07:32:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 86ee62d14118a2a59599a7acf67a382c SHA-1: 283ef5eec1715479ee44802fc407f16139af181b SHA-256: c3187cc6485832c3fff991b88565aff6ae7c80afc71e78e6e95203456a3b6b3f
172 Risk Score

Malware Insights

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

The PDF file contains numerous links to compromised websites, suggesting it is part of a phishing or malware distribution campaign. The presence of a 'movie download' lure in the document body, combined with the ML classifier's high confidence and ClamAV detection, strongly indicates malicious intent. The primary attack pattern involves directing users to download potentially harmful files hosted on compromised CMS platforms.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 8

  • 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.
  • 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
  • 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://garglob.ru/uplcv?utm_term=tanu+weds+manu+2+full+movie+online PDF link annotation
    • http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae210d0ce75---kebudakapi.pdfIn PDF document text
    • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/ab4afa53331be8ba4652d60d6d72e64f/noripobokuzizivevoniziv.pdfIn PDF document text
    • http://boxerdapolenta.com/cmsimple/images/file/nidesojetivuz.pdfIn PDF document text
    • https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/473caalmj6rdlar59g1rf1t4e1/finafogezudorifu.pdfIn PDF document text
    • https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/ddf03a080b239cf1d75081ab066f1634/nimatevanadononevomet.pdfIn PDF document text
    • http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aeac8171a9a---3818171429.pdfIn PDF document text
    • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/160c08f07785b7---febumixivoru.pdfIn PDF document text
    • http://toonesk.com/upload/27557552251.pdfIn PDF document text
    • http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16080a77fad9f2---34480493911.pdfIn PDF document text
    • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/7a43737090c4d9b323010b58e447f11c/jaligikovitevez.pdfIn PDF document text
    • https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a7af9700aaa---72961868014.pdfIn PDF document text
    • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16087a9ce0c521---kagawovesabuko.pdfIn PDF document text
    • http://texmet.pl/userimages/file/wijevojijawepifiv.pdfIn PDF document text
    • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/5ep57nci2d1o0k5oi0pnpsb4kd/15657817802.pdfIn PDF document text
    • https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/bo57bv4sqtpq5cdt6tirmqhai8/24948365368.pdfIn PDF document text
    • http://provia-events.de/pics/fotos/1/file/ruferajalixu.pdfIn PDF document text
    • https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/353ad595a9678dcf63bbdf994c46133d/vivusoxedumojulelikime.pdfIn PDF document text
    • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1608317fdd9048---movevalikotona.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dcfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCFA 5188 bytes
SHA-256: 93097e572c89e76dd6c67a9db65a5cc5b9b88fc6e5d2532df979d4e4584d7069
font_01_sfnt_off0000eeb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEB2 12544 bytes
SHA-256: 8736754b84543f98aa59fdf2cbc38747d8801e3eefc9cd272cdd4a16e812891a

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