Malicious PDF — malware analysis report

Static analysis result for SHA-256 e58e57b078b5ae8a…

MALICIOUS

PDF

66.5 KB Created: 2021-09-07 05:56:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: fc95e4429ba4838e7851208817100545 SHA-1: 7f473ad81b1bc74d3af62108d47bb1c8ec84f040 SHA-256: e58e57b078b5ae8aba7b6b960c44705c1958979eaa8c7c5d99d1ca575e7edb33
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised or disposable domains, indicating a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier further support its malicious nature. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5479

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://piqiso.ru/userfiles/file/30520317100.pdf In PDF document text
    • https://floridainvestment.cz/files/file/53340634209.pdfIn PDF document text
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c55955aa13c---67473483900.pdfIn PDF document text
    • https://binarbaidequipment.com/public_html/userfiles/file/61228612129.pdfIn PDF document text
    • https://hbphoto.ca/resimler/files/jezukuxitejegizatunom.pdfIn PDF document text
    • http://lotusburbank.com/uploads/files/muzepafuxizilixusum.pdfIn PDF document text
    • http://thegreenlegacykeepers.com/clients/e/e8/e8dc17949b7ef813e9937e453902477f/File/pituvipujilonoratexetiwa.pdfIn PDF document text
    • https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/5tigcl2sfjdkmqnir7abtuga67/rerumoberexubofuleda.pdfIn PDF document text
    • http://2478.ru/admin/ckfinder/userfiles/files/pibofidegonixukijiwo.pdfIn PDF document text
    • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/4ba1307164e135be8df8d53d9a1d615e/niganufexo.pdfIn PDF document text
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160765a4b0bf87---52479488574.pdfIn PDF document text
    • http://biotop-zamosc.pl/userfiles/file/fibebuxelogonaz.pdfIn PDF document text
    • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/88654e2b63ad06e4b7b099d205577524/87021845790.pdfIn PDF document text
    • http://amexeuro.com/an3_Uploads/file/rojasujumaxovo.pdfIn PDF document text
    • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086f46337474---31278532355.pdfIn PDF document text
    • http://bioident.pl/photos_fck/file/guwopozikaju.pdfIn PDF document text
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/105aa87a075109be665d44cb61193b91/dupuvopikubakapuja.pdfIn PDF document text
    • https://avenue102.com/uploads/file/xelasuvezumemikovimal.pdfIn PDF document text
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612c33d5805fb---jegajubarusiwa.pdfIn PDF document text
    • http://www.tractortools.cz/ckfinder/userfiles/files/javixu.pdfIn PDF document text
    • http://xycrusher.com/d/files/359533936.pdfIn PDF document text
    • https://myphi.biz/nbloom/fckuploads/file/mutuzo.pdfIn PDF document text
    • http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/ru0huod0nc2gpcf28g0vlrhqu3/veliwixiba.pdfIn PDF document text
    • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/160833cfee8113---vemofividepe.pdfIn PDF document text
    • http://smwiarus.pl/ckfinder/userfiles/files/xovigotebejenofebude.pdfIn PDF document text
    • http://qqsbg.net/uploads/file/pevipuzujevozajobon.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=briquetting+process+pdfPDF 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_off0000e755.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE755 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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