Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6d10e4a1f8c3321…

MALICIOUS

PDF

83.4 KB Created: 2021-02-27 12:29:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: b295ee4be89535fab04c45a2e077a845 SHA-1: 903493e55c628ea99ff925cc4f22da68be24701c SHA-256: c6d10e4a1f8c33211a86279aec056d280b617fa968a8b6c8c24832b609432f34
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9995

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://gimoguvi.ru/123?utm_term=bow+tie+cinemas+reston+movie+times PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4504788/normal_603446fd7ce78.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482623/normal_6001d5041cb24.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381101/normal_5ffe5f8846b3c.pdfIn PDF document text
    • http://italywow.pro/speech_therapy_ideas_for_high_school_studentsnnsmy.pdfIn PDF document text
    • http://gulidomirebo.22web.org/gedisidaru.pdfIn PDF document text
    • http://fb-ig-copyright.com/asus_command_softwaregvmcs.pdfIn PDF document text
    • http://kozupuj.iblogger.org/tabulawuvudefumarone.pdfIn PDF document text
    • http://myfirstsite.xyz/gm_diet_menu_for_7_days8i87r.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368485/normal_5ffe90d75a673.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/mikibetiv/liridibogijesasesixisula.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/civilization_iv_beyond_the_sword_strategy_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/igcse_accounting_income_statement_format.pdfIn PDF document text
    • https://s3.amazonaws.com/poguvelefa/anniyan_bgm_ringtone.pdfIn PDF document text
    • https://s3.amazonaws.com/zowibatev/bengali_movie_sultan_song.pdfIn PDF document text
    • https://s3.amazonaws.com/janodojivi/beat_pe_booty_remix_song.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/73376568622.pdfIn PDF document text
    • https://s3.amazonaws.com/bodajaku/free_usb_bootable_software_for_ubuntu.pdfIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/snappic_collage_photo_editor_app.pdfIn PDF document text
    • http://rikukevez.rf.gd/clean_architecture_a_craftsman_s_guide.pdfIn PDF document text
    • http://xelidev.rf.gd/suxirenivagaz.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/lupimi.pdfIn PDF document text
    • http://jatamez.epizy.com/38555830258.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10970 5112 bytes
SHA-256: 0cc42c6992e3e573f014897813f60ebab3e36fe6b483a8cefef26be4f19c1021
font_01_sfnt_off00011ad2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AD2 11036 bytes
SHA-256: c4ace1984d4bab322b332e258e844e6a3315f96aa83d4d8b140995bed4eef1c8

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