Malicious PDF — malware analysis report

Static analysis result for SHA-256 12297e6ffb98f34a…

MALICIOUS

PDF

86.2 KB Created: 2021-09-06 05:49:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: fa7c730e7e5f3d301967b1c08a283562 SHA-1: 0d1b9f7941c91da8f54b6e34691dc5723d6f02a1 SHA-256: 12297e6ffb98f34a7a2395a0b154adb2cc58428fa794a2876429c5321dd4605a
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous external URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution scheme. The file's structure and the presence of multiple external links indicate it is designed to lure users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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
  • 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.
  • 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://laborke.ru/uplcv?utm_term=vitamin+b1+deficiency+pdf PDF link annotation
    • http://franklcalabreseattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/94782929586.pdfIn PDF document text
    • https://sahyadrisevasanstha.in/userfiles/file/7123859270.pdfIn PDF document text
    • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ffe1121879a---8456299347.pdfIn PDF document text
    • http://jdhs77.com/clients/58520/File/mebuneredoviloliko.pdfIn PDF document text
    • https://irastuff.com/admin/ckfinder/uploads/files/xowipeseminisudaxavejab.pdfIn PDF document text
    • https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f7796450a61---somopamukira.pdfIn PDF document text
    • https://euforbiabulgaria.com/uploads/pages/files/tased.pdfIn PDF document text
    • https://leonardscopysystems.com/home/leonards/public_html/ckfinder/userfiles/files/nisozel.pdfIn PDF document text
    • http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d970e2c18e2---41661134432.pdfIn PDF document text
    • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dd0e9836cb---timabafawita.pdfIn PDF document text
    • http://brezov-gaj.si/uporabnik/file/36720237294.pdfIn PDF document text
    • http://vietsonplastic.com/uploads/userfiles/file/43714254260.pdfIn PDF document text
    • http://mevlanaasm.com/resimler/files/kopowave.pdfIn PDF document text
    • http://aihyang.com/userfiles/file/fuginak.pdfIn PDF document text
    • http://maksimetall.ru/files/ralefimiwarinive.pdfIn PDF document text
    • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8881c1ad1d---sozikako.pdfIn PDF document text
    • https://iranjobex.com/cache/fck_files/file/79106152213.pdfIn PDF document text
    • http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160a8ca56c4c3b---daboludanapexufiduxixet.pdfIn PDF document text
    • http://babamoleskine.com/files/file/bijomegoladeje.pdfIn PDF document text
    • https://hogies.com/includes/template/uploads/file/widotinimozevukedep.pdfIn PDF document text
    • http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/cc824g58p8i9p49guarkhaa4n7/zolezebukewawodofapawiri.pdfIn PDF document text
    • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160881adaa4a16---loxevajulepugemibukisal.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_off0000eb49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB49 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10360 10624 bytes
SHA-256: 8d573d1469e7a33d9cde353f1a4158df34c3e07718cbc6105c8e57620fa196ca
font_02_sfnt_off00011b85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B85 18392 bytes
SHA-256: a5dfd0b0c444aa897c3d9b04675b1d28387e2e7516b94b815086958995433c2a

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