Malicious PDF — malware analysis report

Static analysis result for SHA-256 d195c1dd3b7be2d5…

MALICIOUS

PDF

79.8 KB Created: 2021-09-20 20:48:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 1d58db7a81263fb512803d01bb19cfe6 SHA-1: 67af21d5330dca46d4d12b1597ca975205e4937b SHA-256: d195c1dd3b7be2d5e23bd7d6ea3bf2d7243d3034ab03480938768fd02284bb03
156 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to multiple disposable hosting sites, with one URL specifically mentioning 'tekken 3 game download'. This suggests a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or trojan distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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://orig-shop-gsm.ro/ckfinder/userfiles/files/bowobo.pdf In PDF document text
    • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613007dc4bfd6---wosiroxexutaxos.pdfIn PDF document text
    • https://matrixx.lu/images/62550506906.pdfIn PDF document text
    • https://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/2bnoh9ihtm1gqhbegqtlet6660/rawilojibarimiboxodid.pdfIn PDF document text
    • https://larrialdiak.es/files/galeria/files/11427098686.pdfIn PDF document text
    • https://fiscalonline.ro/app/webroot/files/userfiles/files/gajiritetitowonijolib.pdfIn PDF document text
    • http://hzqljsj.com/images/upload/File/dikiremi.pdfIn PDF document text
    • https://kisikana.hr/userfiles/file/62843588314.pdfIn PDF document text
    • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613d95b63cb59---masutavasilaxapurokun.pdfIn PDF document text
    • https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/d17vr7j9grmp1javq69refit0r/24250931376.pdfIn PDF document text
    • https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/c0eb098332fa23788149cdbf7cbc3a34/nipabafolakutis.pdfIn PDF document text
    • https://mgs-on-track.com/uploads/misc/files/jukejimi.pdfIn PDF document text
    • http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/29932774988.pdfIn PDF document text
    • http://modernplating.com/userfiles/file/latumatumonebaf.pdfIn PDF document text
    • https://shinaltd.ru/images/file/50758528919.pdfIn PDF document text
    • http://tunglamgarden.com/images/fck/file/67250132357.pdfIn PDF document text
    • https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb85a13a4c---basumek.pdfIn PDF document text
    • http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/161355b0d7c788---lefusifunebilaxuz.pdfIn PDF document text
    • http://52963566.com/upload/file/202109182224000275.pdfIn PDF document text
    • http://kirche-treuen.de/UserFiles/File/fatesilanefovefirutijakin.pdfIn PDF document text
    • http://cocoal.com/uploads/file/81241238442.pdfIn PDF document text
    • http://khamtribacninh.com/images/files/96055009552.pdfIn PDF document text
    • http://unicorn-furnitures.com/d/files/jofosojivanupedu.pdfIn PDF document text
    • https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/ab118599aaf782e98577437490de9762/51196800422.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=tekken+3+game+download+new+versionPDF 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_off0000d3b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3B2 10872 bytes
SHA-256: c9e93396854af0b640b502fb9a063b3351564999239daa62b2e2cba0c26d2028
font_01_sfnt_off0000ecac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECAC 17360 bytes
SHA-256: d4a2163ce691f7c3a9579e483de00fadedeec56d1dc4b6b53d8fe45080e7ec0b
font_02_sfnt_off000119c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119C0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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