Malicious PDF — malware analysis report

Static analysis result for SHA-256 0814c0bea462b91e…

MALICIOUS

PDF

67.9 KB Created: 2021-09-06 19:38:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 79b999c0e9ba665d04fc6279ba7e0f22 SHA-1: 010629b12c09b94be71d27ab674296160eeaef6c SHA-256: 0814c0bea462b91e16b683c9ee112fad305b4cd5f60eb8d8516315c86ef2c7d1
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a significant number of external links, many of which point to compromised WordPress sites. This suggests the file is designed to act as a lure, redirecting users to malicious content or phishing pages. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8854

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/160d76b8523e17---zivavonopibilol.pdf In PDF document text
    • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c496a442d77---wixepasebuborikapura.pdfIn PDF document text
    • https://chp-travel.ir/data/file/33382521658.pdfIn PDF document text
    • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091eb575634e---kudatesinakodevivokug.pdfIn PDF document text
    • http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/6d9ede39e2b91b34ef9f15be3e15400d/ziporawof.pdfIn PDF document text
    • https://luxesystem.site/js/ckfinder/userfiles/files/kaxetiwixo.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/e4712174e28430b199c5b4b5c9aad515/14999025993.pdfIn PDF document text
    • http://dyweisheng.com/uploadfile/file/2021080321162773499.pdfIn PDF document text
    • http://santamariamikado.com/uploads/files/70905991760.pdfIn PDF document text
    • http://tulsacentral1963.com/clients/3/39/398188050227c7f1c8b3045a0a865105/File/98436953146.pdfIn PDF document text
    • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ed3f7929c8---27150507987.pdfIn PDF document text
    • http://dbhsreunion.com/clients/21010/File/xufewazuwobanoxekopen.pdfIn PDF document text
    • http://virtualcharityevents.com/vce_cake/files/files/1060825395.pdfIn PDF document text
    • https://thetitangroup.ca/wp-content/plugins/super-forms/uploads/php/files/946fb727593a43243523118df2183339/nuloma.pdfIn PDF document text
    • http://ingmontagna.com/userfiles/files/11641042471.pdfIn PDF document text
    • https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/cbecd0cf8cc46bde0c1ea75f41b8100b/54729483122.pdfIn PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b705ba9a0d7---52338516313.pdfIn PDF document text
    • http://klinikoral.com/img/userfiles/files/53362946697.pdfIn PDF document text
    • https://sealand-pptc.com/userfiles/file/remigijo.pdfIn PDF document text
    • https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/a5c9adbad27f21948f1c372bd3044591/letisodakix.pdfIn PDF document text
    • https://ldcpc.com/ckfinder/userfiles/files/68842485691.pdfIn PDF document text
    • https://silverwayshipping.com/userfiles/file/bojorijenubo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=makalah+politik+identitas+pdfPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bdeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDEB 15948 bytes
SHA-256: df9ca2e5f63640a569c93f98bafe71dcf5f253a7b112456f9e4b3ed279e72c43
font_01_sfnt_off0000e6ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6EF 10580 bytes
SHA-256: 9236863fbcccf58a340fe4ccdaa3cbe134c80e0fcf14a4fc1a1c08e6531c2e8e

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