Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a63561f62380e86…

MALICIOUS

PDF

86.2 KB Created: 2021-05-04 04:45:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 44fc69c824dff81b94d05a4ef70a4223 SHA-1: 9c1303c295f0984bd772424cfc67940ac37e4fa7 SHA-256: 2a63561f62380e86d675bbff77906839d9d1da8b90073e4eaccfa23c35856241
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 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://nipisod.ru/strik?utm_term=best+beatles+piano+music+book PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4454424/normal_5ff633d33142b.pdfIn PDF document text
    • https://cdn.sqhk.co/xafogatok/jWvHSw3/weather_station_home_assistant.pdfIn PDF document text
    • https://cdn.sqhk.co/vizinifum/eie3gWl/2020_hit_songs_download_masstamilan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475389/normal_605b883aab541.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485322/normal_602d3a5aa3748.pdfIn PDF document text
    • http://wagajikis.iblogger.org/85346520676.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/CtjdgtM/fast_money_halftime_report_cnbc_fix.pdfIn PDF document text
    • https://cdn.sqhk.co/fogunedevare/bUopagt/tanks_ww1_impact_on_warfare.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467030/normal_604169601616c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379221/normal_606508b177833.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375699/normal_6018423d57092.pdfIn PDF document text
    • http://momuloteseze.22web.org/printable_gift_certificate_template.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/pubopelej/fumugofoxer.pdfIn PDF document text
    • https://s3.amazonaws.com/bulujono/71848216261.pdfIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/53471980916.pdfIn PDF document text
    • https://s3.amazonaws.com/dubiditiginowo/origin_of_phrase_its_all_over_bar_the_shouting.pdfIn PDF document text
    • http://fadifisevak.epizy.com/chalo_ishq_ladaaye_all_songs_free.pdfIn PDF document text
    • http://ruzuvune.epizy.com/access_bars_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/laxozu.pdfIn PDF document text
    • http://lovifepomuxi.rf.gd/educational_leadership_capability_framework.pdfIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/heroes_of_the_storm_ragnaros_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/fupanabivote/how_to_install_a_motion_sensor_light.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_off00011360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11360 5236 bytes
SHA-256: f0356b501c9ef63d9342c3c2dde4c042a6f7eabefb407faf743d9aba75bd40ba
font_01_sfnt_off00012523.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12523 11372 bytes
SHA-256: 82de63c6924daaf97cd16bcec035987d062bf5269f61f499b223ad14654385a5

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