Malicious PDF — malware analysis report

Static analysis result for SHA-256 08043cbf9cc3296a…

MALICIOUS

PDF

77.9 KB Created: 2021-09-20 03:03:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 6e1a36150b5cd5d40692691ff7a7b203 SHA-1: 755cbac830f893d7f7b9fd605db58502f139946c SHA-256: 08043cbf9cc3296a094a69d992b94d1ddc0ad5fc17f374e0b27c5d0fd7bc62fe
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a large number of external links, indicating a malicious intent to redirect users to potentially harmful websites. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment. The embedded JavaScript likely facilitates the redirection or exploits vulnerabilities to achieve its malicious goals.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4750

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
  • 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://pistant.ru/uplcv?utm_term=miracast+enabled+phones PDF link annotation
    • http://rainhouse.kr/data/editor/file/21135074466135e8f742d98.pdfIn PDF document text
    • http://jeyadhurgatemple.com/userfiles/file/52657265718.pdfIn PDF document text
    • https://renesens21.com/ressources/upload/files/10468262411.pdfIn PDF document text
    • http://rorolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wonurexavupiperumuxap.pdfIn PDF document text
    • https://pielinks.com/UserFiles/file/xagavafet.pdfIn PDF document text
    • http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613726dd4f43e---zanazudurusotilexizof.pdfIn PDF document text
    • http://elfuklid.cz/foto/Image/file/mukozosoxedepuxe.pdfIn PDF document text
    • http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c1252b267d---gumaliboxofupi.pdfIn PDF document text
    • https://momentous-inst.com/uploads/image/files/72966149010.pdfIn PDF document text
    • http://bagiez.com/userfiles/file/47438307015.pdfIn PDF document text
    • http://wsystem.sk/userfiles/files/tumafulajo.pdfIn PDF document text
    • http://autofactory-jin.com/js/upload/files/36678887459.pdfIn PDF document text
    • https://alistairmills.com/ckfinder/userfiles/files/51338453823.pdfIn PDF document text
    • https://northwestconvention.cz/data/files/dodugokanubosum.pdfIn PDF document text
    • http://hankyunget.net/userData/board/file/sunafegupovo.pdfIn PDF document text
    • https://marcvandewiele.com/userfiles/file/gotubukifuxadanewogirija.pdfIn PDF document text
    • http://unicorn-furnitures.com/d/files/79211203144.pdfIn PDF document text
    • http://parkety-patemal.sk/files/file/vagifuviviwo.pdfIn PDF document text
    • https://icrs-as.com/userfiles/file/40148655972.pdfIn PDF document text
    • http://lnimeina.it/userfiles/files/40440947057.pdfIn PDF document text
    • http://togul.org/sites/default/files/file/44243255063.pdfIn PDF document text
    • http://gazdalkodjokosan.hu/img/userfiles/file/witabupuxoxabupuwakepa.pdfIn PDF document text
    • https://dolmalatrek.com/userfiles/file/83224721898.pdfIn PDF document text
    • http://athaj2.specialty-match.com/upload/files/45794335160.pdfIn PDF document text
    • 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_off0000e711.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE711 18012 bytes
SHA-256: d66d29875be37795384e22ca6d0359b70c0688180f454b73bad7ead6de5b0f72
font_01_sfnt_off00011673.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11673 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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