Malicious PDF — malware analysis report

Static analysis result for SHA-256 42d130228770eb6b…

MALICIOUS

PDF

72.4 KB Created: 2021-03-11 01:00:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 6da7abda2bae3eaa78e542c4cc1e86be SHA-1: 22673540691c93672f57470fcfc10bc5488d920b SHA-256: 42d130228770eb6bbb82db02076d2a816799ad4be2306ce7eaf9356af1e8947e
96 Risk Score

Malware Insights

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

The file is a PDF document that contains multiple embedded URLs, with a high likelihood of leading to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically phishing or trojan distribution. The presence of external URIs suggests the document is designed to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://botokaw.ru/123?utm_term=idea+movies+tv+apk PDF link annotation
    • http://winovigamaj.mygamesonline.org/5714675338.pdfIn PDF document text
    • http://fukerijinexin.mygamesonline.org/books_on_how_to_become_a_real_estate_agent.pdfIn PDF document text
    • http://lamejix.scienceontheweb.net/soxanoronukazopejupomorok.pdfIn PDF document text
    • http://avit0.cc/ogden_utah_mapf4jz6.pdfIn PDF document text
    • http://tradebot.space/warhammer_only_war_core_rulebookt7t1o.pdfIn PDF document text
    • http://kwini-fini.online/4734242519parzo.pdfIn PDF document text
    • http://lamomusexosefe.66ghz.com/platform_heels_buy.pdfIn PDF document text
    • http://dikegebe.mygamesonline.org/nate_the_great_san_francisco_detective.pdfIn PDF document text
    • http://dubulus.iblogger.org/tokusamigaxuxulu.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/kigavanus/affine_transformation_matlab_image.pdfIn PDF document text
    • https://s3.amazonaws.com/fomaralunex/jugozumowadileterisapu.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/84511765118.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28935ffe-bed3-4e9a-8b0d-b631f9413931/53638994965.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/005e8aa4-f246-4de2-a080-31ad620b2de2/38980186638.pdfIn PDF document text
    • https://s3.amazonaws.com/savifin/is_lazy_boy_recliners_worth_the_money.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/24717665540.pdfIn PDF document text
    • http://liraperuwuw.atwebpages.com/how_to_improve_lyrical_dance.pdfIn PDF document text
    • http://varoniwarovez.rf.gd/auto_liker_bot_apk.pdfIn PDF document text
    • http://kefitiruw.epizy.com/poeta_en_nueva_york_resumen_corto.pdfIn PDF document text
    • https://s3.amazonaws.com/farokof/todogoguxotazoxipuxulu.pdfIn PDF document text
    • https://s3.amazonaws.com/jewizopukuni/on_time_performance_united_flights.pdfIn PDF document text
    • http://binuxoxu.rf.gd/aadukalam_video_song_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/katogemanowo.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_off0000e00c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE00C 5036 bytes
SHA-256: d1a2bb5671b7f8c6b81212b39ef5e40c1f9120d3d56dd2b06361da8418b42619
font_01_sfnt_off0000f125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF125 10304 bytes
SHA-256: cbbd16b51a0995bf41e65400bfdf8e1a41bb90d48a8ca4366c8e27642719d891

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