Malicious PDF — malware analysis report

Static analysis result for SHA-256 0542bdcc82e0c092…

MALICIOUS

PDF

70.8 KB Created: 2021-05-06 02:03:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 80c71fb23fcc1251facc16d43094df1b SHA-1: 8499e8dbbe5449a452989f8c96c65c587a12a4a5 SHA-256: 0542bdcc82e0c0928014fe431cf6f6e2e723b80d64fbe9d3c2212d76713eb890
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 0.9991

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://jottigo.ru/strik?utm_term=unicorn+magic+book+series PDF link annotation
    • http://sozapemogoz.mygamesonline.org/89142038602.pdfIn PDF document text
    • http://otomail.business/zodafuvim7qbcw.pdfIn PDF document text
    • http://naturebiolog.space/jenn_air_range_top_knobscnpbt.pdfIn PDF document text
    • https://cdn.sqhk.co/padirazemi/MXhiwBh/online_reading_lessons_for_kindergarten.pdfIn PDF document text
    • https://cdn.sqhk.co/vozevadijut/iUgjZjj/risk_neutral_probability_pricing_model.pdfIn PDF document text
    • http://posurazatux.mypressonline.com/pojejimamene.pdfIn PDF document text
    • http://runojiwum.getenjoyment.net/zumirubujobuvikipi.pdfIn PDF document text
    • https://cdn.sqhk.co/kekelivig/gZigIhj/the_knight_s_tale_canterbury_tales_shmoop.pdfIn PDF document text
    • https://cdn.sqhk.co/nivazesoj/gjhewhh/64_bit_multi-_threading.pdfIn PDF document text
    • https://cdn.sqhk.co/wadusazilox/ggfiihs/dolphin_robot_transform_robot_wars_x.pdfIn PDF document text
    • http://instapriz365.online/vesojumurezulikofemodby4i6.pdfIn PDF document text
    • http://bioforcecolumbia.site/aceptacion_incondicionalomqus.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5783ffc-d0f4-4180-b3ea-090bf4b4f513/what_are_the_physical_properties_of_substances.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1da8639-ee59-4f0c-a755-bb18fb8caf1c/46355959461.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/kegunixubevegeke.pdfIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/what_does_archive_mean_on_instagram.pdfIn PDF document text
    • http://polabufu.myartsonline.com/runepovufoxepurogixugu.pdfIn PDF document text
    • https://s3.amazonaws.com/salade/cyclone_box_setup.pdfIn PDF document text
    • https://s3.amazonaws.com/godoremitiwuja/under_the_dome_based_on_what_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97a321c5-1c5c-411e-be8b-d54ccf3a715f/vaxowosupazuzurob.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/zixanajedagorenemub.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/widajagapepilo.pdfIn PDF document text
    • https://s3.amazonaws.com/tibitexil/blessed_assurance_music_score.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6faffbe-a154-4f43-b811-517e103cfd7f/55396120976.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_off0000d8dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8DC 5284 bytes
SHA-256: 7d6936cc0d70915a030024d5e4fb589ef1f148ade0af8b891a49274af72935fb
font_01_sfnt_off0000eabf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEABF 10344 bytes
SHA-256: c127d7d9878a56d5604546d551d4e0cea0061c47915023d7fd30bbe113774305

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