Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f751735ebd6a154…

MALICIOUS

PDF

75.8 KB Created: 2021-04-07 06:54:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 342e06aa03bf66f920906aab3847898f SHA-1: 54b2c624caa7a7f748f83337ae2619774cc9f0e1 SHA-256: 0f751735ebd6a15449be6409ff1d04094e7d0300cbc3dd3a51f662ddbdfbe052
96 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 high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, which is likely used to host phishing content or deliver further malware. The document body, though heavily obfuscated, appears to be a lure related to product pricing, aiming to trick users into clicking the malicious link.

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://pelibifir.ru/wb?keyword=epson%20artisan%20835%20price
    • http://kayikciakademi.com/foreo_luna_mini_2_guide29m22.pdf
    • http://arfeshome.com/4416365957343x22.pdf
    • http://desajegurake.scienceontheweb.net/carnival_of_venice_score.pdf
    • http://pebifakonek.sportsontheweb.net/22989840460.pdf
    • http://tesar-krd.ru/walakibope25m9q.pdf
    • http://ogranicbio.fun/41200358842s64uo.pdf
    • http://lbaranaydin.com/why_does_my_epson_printer_not_scan_to_my_computerhqppf.pdf
    • http://tizezs.xyz/singer_promise_1409_manual_espaoltkqtu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://najefitisefema.epizy.com/xorine.pdf
    • http://segukoter.rf.gd/96147308404.pdf
    • http://mupopab.rf.gd/13947561738.pdf
    • http://milanati.epizy.com/what_is_my_zodiac_sign_according_to_vedic_astrology.pdf
    • https://s3.amazonaws.com/najubu/corban_joseph_scouting_report.pdf
    • http://tamipaw.epizy.com/12931537196.pdf
    • http://pukokudew.epizy.com/what_percentage_of_the_uk_population_is_black.pdf
    • http://sazosubegus.epizy.com/nibotudutusininajowifus.pdf
    • https://s3.amazonaws.com/baxadelefofibuz/morning_alarm_song_ringtone.pdf
    • https://s3.amazonaws.com/dixaleko/chromosome_number_worksheet.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e95b.bin
ad3272e96f7ca6c752ea9834e399ff0aef55511c63f5a08e0a1734d191900588		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE95B 5336 bytes
font_01_sfnt_off0000fb8f.bin
78889c14315afcb7a9a677aa799357e5f3533807c699a20860f9633b2728e877		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB8F 11288 bytes

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