Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eb0c3b7dddf42f4…

MALICIOUS

PDF

84.6 KB Created: 2021-07-29 20:47:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: fc9dd2dffd61cf753bbec0cf88cafc9f SHA-1: 107778f801908734cf6b2e8adc1a962976e65d85 SHA-256: 2eb0c3b7dddf42f414e22093b957ad337a7e2e23065e2a462509dccea3b0af18
124 Risk Score

Malware Insights

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

The file was detected as a phishing trojan by ClamAV. Static analysis revealed it functions as a link farm, containing numerous URLs pointing to various websites, some of which are hosted on compromised CMS platforms. This suggests an intent to lure users to malicious sites for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4506

Heuristics 5

  • 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
  • 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://ozkayalarlojistik.com/userfiles/file/43677404461.pdf In PDF document text
    • http://urbancollab.com/userfiles/Proj_Name//files/momalixazofomojoromafa.pdfIn PDF document text
    • http://www.ettermanenterprises.com/ckfinder/userfiles/files/15696479758.pdfIn PDF document text
    • https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/3875135131af699301b67755f2a367bd/kixukab.pdfIn PDF document text
    • http://tlxzkj.com/uploads/file/210016036113.pdfIn PDF document text
    • https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/h193rivllp052tuut4dcac8icl/bopufiwiparexo.pdfIn PDF document text
    • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609381de38396---84818741071.pdfIn PDF document text
    • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075be2bf0ffd---67288932068.pdfIn PDF document text
    • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de2cd5db2e9---32042924172.pdfIn PDF document text
    • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609e769186b3e---53772448122.pdfIn PDF document text
    • https://pomacanthe-art.fr/imagebeforeafter/files/23456948443.pdfIn PDF document text
    • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/bb4m5c5s59qtgtesto7hl2543v/wogigaledevakominuzugo.pdfIn PDF document text
    • http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ab93ea7d56c---96872726701.pdfIn PDF document text
    • http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b9552f8c6fa---vized.pdfIn PDF document text
    • https://forcechicago.com/wp-content/plugins/super-forms/uploads/php/files/66f1b9f1953fb7281e7a8b30c01c203f/gemeja.pdfIn PDF document text
    • https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/5b24d075d644225cab373826d1ddb5bb/felasopuwonuwufuw.pdfIn PDF document text
    • http://allaboutdowney.com/userimages/81989025225.pdfIn PDF document text
    • http://cdmatik.com/uploads/file/9274955636.pdfIn PDF document text
    • http://satbietthu.com/luutru/files/47135680666.pdfIn PDF document text
    • https://store-connector.com/_upload_bilder/_filemanager/file/6408367954.pdfIn PDF document text
    • http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16083dabba82ca---35761925986.pdfIn PDF document text
    • https://lienlacanien.com/img_pages/file/62825388747.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=what+is+dassault+rafalePDF link annotation
    • 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_off0000f64f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF64F 17520 bytes
SHA-256: 9e9182cfc1456539fa8774e213358d1b6b6e0b4db17c450acd38912ef6222453
font_01_sfnt_off00012459.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12459 10320 bytes
SHA-256: d130d703215d9e72ff9dd814d092ca47c5a22e75d666ffc49963c963ad569456
font_02_sfnt_off00013bc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BC3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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