Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2aea2856cec0ca4…

MALICIOUS

PDF

225.5 KB Created: 2021-03-26 10:26:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 7c1794c710313a3ed7dddc6dcfd7412f SHA-1: 43dcb1804b513fc2482c60bd5c4c5f6025ac6a80 SHA-256: f2aea2856cec0ca45b5a83e64f1b0619586e70f2491613126167fe215456bbb7
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF with high confidence. The document body, though heavily obfuscated, contains text related to a game and the authoring application, suggesting a lure to a malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9917

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://leonvi.ru/wix?keyword=salt+and+sanctuary+bronze+knight+ashes PDF link annotation
    • http://taygerr.com/97627779976f9bzb.pdfIn PDF document text
    • http://rbqjkwklnd.xyz/wopejovimezuloraxack0ms.pdfIn PDF document text
    • http://nekretnine.site/892206231344gd1j.pdfIn PDF document text
    • http://zagodutaf.getenjoyment.net/93235474047.pdfIn PDF document text
    • http://laulu-go.ru/hp_color_laserjet_cp1215_driver_mac_osye7fp.pdfIn PDF document text
    • http://suberubepuparo.getenjoyment.net/debussy_arabesque_no._1.pdfIn PDF document text
    • http://papotupeti.iblogger.org/10155442380.pdfIn PDF document text
    • http://premial.su/26622582497lr6bv.pdfIn PDF document text
    • http://kijodebida.22web.org/20384569088.pdfIn PDF document text
    • http://lnstagram-verificationbadgeform.com/wosemelogokimijokt0ui8.pdfIn PDF document text
    • http://wei-nmvc.com/vixowesovofoworigozonog9vtp.pdfIn PDF document text
    • http://kegetisa.mygamesonline.org/alienware_m15_r2_specs.pdfIn PDF document text
    • http://brandframeb.com/64424962579cx0bm.pdfIn PDF document text
    • http://luminar3-download.xyz/generate_battery_report_windows_8etih0.pdfIn PDF document text
    • http://wusozupu.mypressonline.com/93278544496.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://raxegujanamefas.atwebpages.com/blanche_neige.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/marlin_model_60_custom_stock_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/how_to_give_a_buzz_cut_haircut.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/personal_goals_template_word.pdfIn PDF document text
    • http://tazodeb.epizy.com/69199359625.pdfIn PDF document text
    • https://s3.amazonaws.com/purufiz/ankhila_de_punjabi_gane.pdfIn PDF document text
    • http://diwixixeja.epizy.com/wovaw.pdfIn PDF document text
    • http://kimamewaseziwal.epizy.com/sindrome_amnesico_organico.pdfIn PDF document text
    • https://s3.amazonaws.com/sesijesule/delalonoxutu.pdfIn PDF document text
    • http://jonukufazok.rf.gd/xuxirojitefobitifib.pdfIn PDF document text
    • http://xolexejobiga.epizy.com/punctuation_worksheets_for_grade_5.pdfIn PDF document text
    • http://tokejavopif.rf.gd/formacion_de_enlace_peptidico_entre_aminoacidos.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000249ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x249AB 94664 bytes
SHA-256: 5bfeb66ca262751f74121c2e0da7ce4899034cbe3e7c1f9f16ac0a2a1d77681b
font_01_sfnt_off00033ce2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33CE2 5660 bytes
SHA-256: 781da6730cb83ed5200c8d7f57e3e6335db8f5870338b5e5f9f26dfc820fd1bd
font_02_sfnt_off00035028.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35028 11024 bytes
SHA-256: ec2214ebf60a63e46aa88c0b1ddb4665fe646c197050430bf52136e1006e656b

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