Malicious PDF — malware analysis report

Static analysis result for SHA-256 26865390d2f51937…

MALICIOUS

PDF

86.0 KB Created: 2021-03-13 13:47:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76e44fd21656547ecbed6512ec478b3f SHA-1: 7fb380dae74be14c6ac802046299bf3b936719a5 SHA-256: 26865390d2f51937b610060ccbdd6744703d67ac510d65ee30f007291a0536c5
96 Risk Score

Malware Insights

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

The PDF document contains an embedded external URI that points to a URL commonly associated with phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of numerous URLs, many with unknown reputations, further supports the likelihood of this document being used to direct users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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/strik?utm_term=hp+officejet+4622+will+not+print+black
    • http://midunetojonawiw.mywebcommunity.org/lee_county_florida_school_schedule.pdf
    • https://cdn-cms.f-static.net/uploads/4416301/normal_6048506136152.pdf
    • http://nudistoff.club/juwavejaxelosuloluxajovow2s3nh.pdf
    • https://cdn-cms.f-static.net/uploads/4390069/normal_5fdc3ce1a6e9f.pdf
    • http://supermagazforsale1.xyz/padono7v1lp.pdf
    • http://kufigada.22web.org/billing_statement_template_free_word.pdf
    • https://cdn.sqhk.co/sigidezok/haxVrhf/jidunipomigav.pdf
    • http://fevozogu.iblogger.org/pexivituzulipebitidumame.pdf
    • https://static.s123-cdn-static.com/uploads/4371272/normal_5feea1db6c8a0.pdf
    • http://totalcreditreport.info/91993663671p7m5n.pdf
    • http://reduslim-officialsite.site/grade_2_gamesgrl2m.pdf
    • https://static.s123-cdn-static.com/uploads/4369643/normal_5fffd9d4941aa.pdf
    • http://fragcups.com/wages_of_whiteness_roedigervfnnq.pdf
    • https://cdn.sqhk.co/pupumukisev/ghaOljj/fezexerezekana.pdf
    • http://vetobiz.sportsontheweb.net/51650108229.pdf
    • http://jepisafidezegun.scienceontheweb.net/95940990423.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://vetoraj.rf.gd/ostrich_proper_font_free.pdf
    • https://s3.amazonaws.com/golepe/39214011422.pdf
    • https://s3.amazonaws.com/gotenukevepunin/love_story_movie_song_mp3_download_pagalworld.pdf
    • https://s3.amazonaws.com/lepefi/27261332725.pdf
    • https://s3.amazonaws.com/sesijesule/va_blue_button_report_my_healthevet.pdf
    • http://ruboxoziwoz.rf.gd/44076821902.pdf
    • https://s3.amazonaws.com/zamuriza/apna_csc_aadhar_card.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_off00011114.bin
1e747e28ca6251b7f6fbde0692e4e2fc3ed7dbfd41610837731f315f74499111
pdf-font-stream PDF embedded font (sfnt) at offset 0x11114 5536 bytes
font_01_sfnt_off0001241c.bin
d4c55f1f5b49fc4c54f1f3c75c8dd47928139575296cefb2ba770b3315538e07
pdf-font-stream PDF embedded font (sfnt) at offset 0x1241C 11360 bytes