Malicious PDF — malware analysis report

Static analysis result for SHA-256 d07881f30c9d43af…

MALICIOUS

PDF

75.1 KB Created: 2021-04-29 21:06:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b7e7e40284fd0d3de7348b8e11f8d5e5 SHA-1: b5db9898d78e2eb4ee67dd5f1e05d92090f6d66e SHA-256: d07881f30c9d43af65516b41949fbf95ce3acfe41d59e637b6cef0d1bf057bf3
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that points to a suspicious domain, likely intended for phishing or malware distribution. ClamAV and ML classifiers flagged this PDF as malicious, indicating a high probability of malicious intent. The document body, though heavily obfuscated, contains text related to a product, suggesting a lure to trick the user into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://maypoin.ru/strik?utm_term=peavey+bandit+112+red+stripe+speaker
    • https://cdn.sqhk.co/zerurukoraju/ierWZXK/hide_files_on_desktop.pdf
    • http://jidokove.scienceontheweb.net/bigopetetajujawajilapese.pdf
    • http://gagefepinulivaf.iblogger.org/apc_smart_ups_2200xl_manual.pdf
    • http://sixesijilolun.mywebcommunity.org/what_does_it_mean_when_someone_calls_you_alpha.pdf
    • https://cdn.sqhk.co/mitukutowum/Kgejdy5/jefinuminidutajideru.pdf
    • http://zodezabazigojab.iblogger.org/muveg.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/sepawi/69723042367.pdf
    • https://s3.amazonaws.com/pululusodogi/45934882098.pdf
    • http://relogevavikidid.epizy.com/great_writing_4_5th_edition_free_download.pdf
    • https://s3.amazonaws.com/nilafafakem/bleeding_love_sheet_music_free.pdf
    • https://s3.amazonaws.com/xakusineba/sarah_brightman_songs.pdf
    • https://s3.amazonaws.com/tipikaxe/harry_potter_and_the_order_of_the_phoenix_full_movie_google_drive.pdf
    • http://nomazigiwuz.rf.gd/11683454931.pdf
    • http://namepafubi.atwebpages.com/66171298640.pdf
    • http://litopuputorer.rf.gd/581407912.pdf
    • http://gonoluripep.rf.gd/javascript_tutorial_ebook.pdf
    • http://tedupogepovajeb.epizy.com/sleeping_beauty_piano_sheet_music.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_off0000e79e.bin
569ed8b2e58b56df7b59bea3a9398828e4b615fa366f66c0b052d14eb22b9053		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE79E 5472 bytes
font_01_sfnt_off0000fa56.bin
22cc39145675494d5eb0afeb3782c4c92d70dcc6a815e9eeba4e0aecbc516bc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA56 10372 bytes

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