Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2a02415b744183c…

MALICIOUS

PDF

75.9 KB Created: 2021-03-18 13:07:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2f8af761a6ed46824a26bb92e0f24381 SHA-1: 9360a46c540ff6a94f3a7f33db43657d3ed82b47 SHA-256: e2a02415b744183cc0c0c7fe0a49719833ebdfaaa414ffb18fdfa0792f590104
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URL that leads to a suspicious domain, likely intended to trick the user into clicking it. The document body, though heavily obfuscated, appears to be related to product reviews, suggesting a phishing or scam lure. No scripts were extracted, but the presence of external URIs and the overall detection profile indicate a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/wix?keyword=male+extra+reviews+before+and+after
    • https://static.s123-cdn-static.com/uploads/4485821/normal_5fcafa0b3c052.pdf
    • https://cdn-cms.f-static.net/uploads/4410702/normal_60393ab7f3ce5.pdf
    • https://cdn-cms.f-static.net/uploads/4415534/normal_600ad9e0d192b.pdf
    • http://dalidusiz.mywebcommunity.org/pathfinder_kingmaker_weapon_focus_touch.pdf
    • http://jotitojimo.mygamesonline.org/american_english_file_2_workbook_answer_key_free_download.pdf
    • http://kugimanuvo.iblogger.org/latest_bollywood_movies_hd_mkv.pdf
    • http://lomokazeve.22web.org/atomic_structure_class_11_download.pdf
    • http://dusipoweg.mywebcommunity.org/32397411240.pdf
    • https://static.s123-cdn-static.com/uploads/4366980/normal_5ffb15cfa5e15.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/e68fbcf6-a896-4404-8d57-542972959544/kakufod.pdf
    • https://uploads.strikinglycdn.com/files/fff99179-1407-4c59-84e9-0e2fba053301/kebezirikarefawukeji.pdf
    • http://vaxutere.rf.gd/joniketolelim.pdf
    • http://xusevig.epizy.com/5663048154.pdf
    • https://uploads.strikinglycdn.com/files/2b247d72-7b9e-47a8-9a89-5d000a131fbf/html_and_css_design_and_build_websites_by_jon_duckett_download.pdf
    • https://ecf8b3bd-8201-449f-a39c-156acd88681e.filesusr.com/ugd/97634b_f491ae7cc7ce48d7a9e7a03a22eacd28.pdf?index=true
    • https://uploads.strikinglycdn.com/files/6d03d6db-3540-4073-a52e-845325a0a33f/korogomotirixaniz.pdf
    • https://5b3500e9-40b4-440a-9ada-171ed8bcf4c9.filesusr.com/ugd/7820d0_d1a68d90b26d47a6bb560fb927700a62.pdf?index=true
    • http://jatitubez.epizy.com/arquitectura_sostenible_libros.pdf
    • https://f55c6975-0091-4942-a106-dc80285e5f9d.filesusr.com/ugd/8a4248_3ad8c6f0c103404ea47d536e3f35a29d.pdf?index=true
    • https://9a60fab3-6fb0-4be7-9305-b2e3cc44d963.filesusr.com/ugd/811c4f_1d289bd6b90a4c8db648e0babbf2ef88.pdf?index=true
    • https://247e77cc-5367-4382-8586-7c5891409f42.filesusr.com/ugd/2dbf5a_c007f98e7eeb4eb7bde41aa1ba83856d.pdf?index=true
    • http://vokutenux.epizy.com/neurotransmitter_actions_worksheet.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_off0000eab1.bin
28f5611bcc5f359c0ee8efedbc983e828e9c1622dbfbb03820ff478859d633c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB1 5268 bytes
font_01_sfnt_off0000fccb.bin
46ab7ccf36bc94988e1bdf6dd8b1213dae9cac9812eef8fcae8d6eb714ec5da7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFCCB 11032 bytes

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