Malicious PDF — malware analysis report

Static analysis result for SHA-256 74b349ec5e8a06cb…

MALICIOUS

PDF

72.9 KB Created: 2021-06-21 14:03:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: beeb1995c300a46761db0d0ec55078a4 SHA-1: efb620e2bbeba4fbfb4cbd85682817118b30d810 SHA-256: 74b349ec5e8a06cbdc3910768ef6612db9667d9df72aab76496adafbf14b524b
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains embedded URLs pointing to suspicious PDF files hosted on various compromised websites. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to trick the user into downloading and opening a malicious document, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7297

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://laihouston.com/wp-content/plugins/super-forms/uploads/php/files/aadcc257b84691484a2c87d9859c30d6/vozuwubavabovipikigux.pdf
    • https://cald-lighting.com/wp-content/plugins/super-forms/uploads/php/files/5a0039b817b82d81f0f1a87b37651468/zefikefafetelibaro.pdf
    • https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079ccaa368ec---xikadavewevabirevodazupag.pdf
    • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16082a6a4a0329---75990657515.pdf
    • http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/f65a4cac5fac55fe7a3432f175749f1d/gizabomawizo.pdf
    • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/92ff05ac9202eed9523eab43c3962f63/dukigilegupubigajajaga.pdf
    • https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/b6690060e2237a32a8866a9957a2a1f4/30346360782.pdf
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c315e1a9464---53758580197.pdf
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ac0a25adc2e---62717837121.pdf
    • http://espacioschillout.es/images/admin/file/badujujoxog.pdf
    • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/160c8edc83c5fa---92462585182.pdf
    • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079aa3def52a---xidezulawo.pdf
    • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/3b2dd0a430a792bb99122150b390f305/poritutidibi.pdf
    • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7cf937aaba---566633221.pdf
    • https://srp-galabau-rostock.de/wp-content/plugins/super-forms/uploads/php/files/5o5cr0nk272tq72p803nvd2rno/11228635404.pdf
    • https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/t05vqqpjrlkeh60eh6l5i2vded/nenopukegaverubejugiru.pdf
    • http://momsystem.ru/public/file/dowivum.pdf
    • http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088e21861aa1---darugakefunavomav.pdf
    • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/upb4q1dt7cd1srgpra5msis8da/73435388487.pdf
    • http://thedreams.cz/files/29692880678.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=avatar+kyoshi+comic+pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc46.bin
d9a461aa2a831b53e8126f179c07db524168a963b2336aab4cf532655ec17603		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC46 3388 bytes
font_01_sfnt_off00010882.bin
48f16901967d8a7cefb315801f12e9236c1a0b796db18a047a8f25976ceef06b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10882 5580 bytes

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