Malicious PDF — malware analysis report

Static analysis result for SHA-256 01db695f8ea7d547…

MALICIOUS

PDF

87.3 KB Created: 2021-09-15 09:14:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 40027ba6026ff5372e95737951675f3f SHA-1: 8ef6303d292214d0782ca4c19492ccffe2f250c8 SHA-256: 01db695f8ea7d5477d55f6dc6ae2772310287e35797633b9d4093307bbab3a17
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1055.012 Process Injection

The PDF contains numerous links, many of which point to external websites, including those hosted on compromised CMS platforms. The ClamAV detection 'Pdf.Phishing.Trojan' strongly suggests a malicious intent, likely phishing or malware distribution. The presence of multiple external links and the compromised CMS hosting indicate a pattern of directing users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4658

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 https://sharpconsulting.us/app/webroot/ckfinder/userfiles/files/xobogi.pdf In PDF document text
    • http://live-net.it/file/wenowiwalodinelegizalugaj.pdfIn PDF document text
    • http://ecoaga.com/documentos/file/67736980451.pdfIn PDF document text
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/n2jedt243gnerobmsmuvlslj40/godiw.pdfIn PDF document text
    • http://problemconsulting.com/img/download/files/xikegavobeber.pdfIn PDF document text
    • http://penzion-u-zamku.cz/files/file/99395973192.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/161417a978e580---tigiwisi.pdfIn PDF document text
    • https://juraganmonyet.com/contents/files/96155666397.pdfIn PDF document text
    • https://gamedunyasi.com/calisma2/files/uploads/divutizojejomenagubunu.pdfIn PDF document text
    • http://skupka23.ru/upload/m/23886430479.pdfIn PDF document text
    • http://kxqcgs.net/filespath/files/20210911040132.pdfIn PDF document text
    • http://th-hl.com///upload/files/96748889732.pdfIn PDF document text
    • http://severstroysnab.ru/userfiles/file/wokejanifujufut.pdfIn PDF document text
    • http://leasingtowers.com/ckfinder/userfiles/files/62169134017.pdfIn PDF document text
    • http://thrifthelp.com/flash/thrifthelp.com/file/4630792426.pdfIn PDF document text
    • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/20e04dd70542ea3118e9fa527ca2e31d/vojaromikefajofagul.pdfIn PDF document text
    • http://mackielaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wimunizomunavizax.pdfIn PDF document text
    • https://zapret-rf.org/web/img/podborky/files/65933679690.pdfIn PDF document text
    • https://wmu24.ru/media/file/jopegoxafenizovenezu.pdfIn PDF document text
    • https://www.restaurant-latableedevercel.com/ckfinder/userfiles/files/59670822662.pdfIn PDF document text
    • https://hantverksakuten.se/ckfinder/userfiles/files/43802486681.pdfIn PDF document text
    • http://centonze-vini.com/userfiles/files/nadifevupudebovira.pdfIn PDF document text
    • http://tries.cz/media/images/upload/file/bujiwukak.pdfIn PDF document text
    • https://baglab.pl/galeria/file/mifunalajituse.pdfIn PDF document text
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136a731bb8fa---pepisakokenetadubeba.pdfIn PDF document text
    • http://www.rafaellucenaehijos.com/ckfinder/userfiles/files/gelevokusitubodebotep.pdfIn PDF document text
    • http://jtravel.clickis.kr/FileData/ckfinder/files/20210909_CC2B56ABE3AD8116.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=prometheus+and+alienPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011b41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B41 18456 bytes
SHA-256: ecd89c888735a789d2a4408a726e4d298c5ae3f05d4dde93f49acb166e434cf9

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