Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ab2e5cad55da215…

MALICIOUS

PDF

66.7 KB Created: 2020-11-09 20:59:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: eca7806c56cb4ae441766aab96fa7dca SHA-1: 28b11f77c3d41e143cf2274c47bb3de36d0e0c7e SHA-256: 7ab2e5cad55da215874db927a23d1a8b36b94386124cdb10de5a19cac900d950
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://trafffi.ru/123?keyword=minecraft+1.00+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4451208/normal_5fa6496c3c162.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369928/normal_5f99747e22ca8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/widuxade/you_tv_player_app.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/hp_elitebook_8530w_specifications.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a43bfbbd-8afe-402d-b2e1-51813a827f9b/79202559959.pdfIn PDF document text
    • https://s3.amazonaws.com/nefagolom/31921211324.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/41479754873.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/15978826988.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/google_applications_passwords.pdfIn PDF document text
    • https://s3.amazonaws.com/pivetuzadujo/cciso_textbook.pdfIn PDF document text
    • https://s3.amazonaws.com/madegusulepugif/evans_high_school_football_hudl.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60344553-1503-40a0-b6dd-be7cf3b2381b/97943571901.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/valakenalezelulifisu.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/zudulamubitawi.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b4d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4D1 5092 bytes
SHA-256: f22ef2985ad2b5608e9e5456dad050fb3ea9ab89c02edd171145a55656fab6dd
font_01_sfnt_off0000c651.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC651 10092 bytes
SHA-256: 0b16de28f0880e53e630930468a87d68a8fd5bd2528005a5474b95a2131e2d9f
font_02_sfnt_off0000e925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE925 16076 bytes
SHA-256: be99eec5252a5aa651cecf07e99d86bba1df1129d84d8f44bf692ed59b17da34