Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaaaabe02041f5ed…

MALICIOUS

PDF

91.3 KB Created: 2021-07-02 04:59:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 6a67bcb707c8e25330501a0138ebc7d7 SHA-1: daa7d8c7cf779e4b9294b5ee51a7ba510fbdfda2 SHA-256: eaaaabe02041f5eddfedb5ab351d83d1f5b5fb3776646afd99b8caaae87c7975
156 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous links, many pointing to compromised WordPress upload directories, suggesting it's designed to lead users to malicious sites. The presence of multiple distinct hosts and the use of 'utm_term' parameters indicate a link farm intended for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9822

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 http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16099a04071f82---juxedomosafogisafosukija.pdf In PDF document text
    • https://people11people.com/uploads/File/pukogiwamuka.pdfIn PDF document text
    • http://banlinhkienlaptop.com/userfiles/file/xisupigujudiverinowa.pdfIn PDF document text
    • http://vimar.ua/userfiles/files/21211561551.pdfIn PDF document text
    • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160afdfc2672c4---11773599778.pdfIn PDF document text
    • https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/66d8722d349fcb7c381b5aa258dbc979/tojukakiwaloxodo.pdfIn PDF document text
    • http://guides2alpes.fr/uploads/file/9454947021.pdfIn PDF document text
    • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082473a3d6d3---52861041422.pdfIn PDF document text
    • https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/ddf332287b076eeeebc8a48f3846ecc0/85069095421.pdfIn PDF document text
    • https://www.vbclighting.com/wp-content/plugins/super-forms/uploads/php/files/9083451e3199cb5883582b9650d7aa3a/volininusilurogeda.pdfIn PDF document text
    • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607adf8ac113f---dagirowimisuredalafigep.pdfIn PDF document text
    • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a80d769e9b2---masakonofibetakovilawu.pdfIn PDF document text
    • http://bike-aholic.com/UserFiles/file/livutumozifoboteditedud.pdfIn PDF document text
    • http://portalcom-b2b.es/img/user///file/_0468338001621899994.pdfIn PDF document text
    • https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/ol5ls9u6j8aksqc25oho7hrv98/15415423686.pdfIn PDF document text
    • http://technestudio.eu/userfiles/files/3384981850.pdfIn PDF document text
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/4cff75f8d600ac6d62e36bd0cb2679c0/15971488544.pdfIn PDF document text
    • http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16080814918d36---dubumamorirevuv.pdfIn PDF document text
    • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607c625ccc020---70303279783.pdfIn PDF document text
    • http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d554d59935---mowibesomiwuwuv.pdfIn PDF document text
    • http://al-bandak.com/userfiles/file/35142998135.pdfIn PDF document text
    • https://kildevangen.dk/files/mamona.pdfIn PDF document text
    • http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/v5djth58efjem7k7hrl39d9vol/34150068060.pdfIn PDF document text
    • https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/v26eaj54l6rpbtn8p1uhdk40uv/74419644066.pdfIn PDF document text
    • http://dfh-consulting.com/userfiles/file/16553498411.pdfIn PDF document text
    • https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/l6516s71ltm3hs4t5qmr1joqve/durevoxogolenova.pdfIn PDF document text
    • http://www.tekkoo.net/images/library/File/vokajozej.pdfIn PDF document text
    • https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/i43s9qdna28ipkusq1keg8n892/87257999337.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=land+of+the+rising+sumPDF 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_off0000f3ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3AE 30456 bytes
SHA-256: 5b43246db78022e73e3d725c10c1e6a4900569154fb2151af1b015edfcf176e6
font_01_sfnt_off00012f1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F1E 10812 bytes
SHA-256: fe223a74c6869558bfe15698192aae5d4d9464095ad8e7fa450be6e29c524df2
font_02_sfnt_off000147a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x147A5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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