Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a48bef11cfc60ca…

MALICIOUS

PDF

78.0 KB Created: 2021-03-25 09:29:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 4192a0e3a82adf40160dd101826766d7 SHA-1: 59a525ad6675b9e1a011ff0b40746a5ce9cafca4 SHA-256: 4a48bef11cfc60ca1370ae6777654adf7571093295de31d1bb7a82b3cf9ce63e
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 0.9995

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://seumenha.ru/strik?utm_term=don%2527t+get+lost+in+the+sea+of+despair PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4488116/normal_602244c722781.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489045/normal_5ff806450df3c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386622/normal_6011f86bd92de.pdfIn PDF document text
    • http://kevotefanevodaw.iblogger.org/dakuvefapoleg.pdfIn PDF document text
    • http://rapisakaxo.66ghz.com/54154350177.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412908/normal_600dac97bab65.pdfIn PDF document text
    • http://muzotom.22web.org/catcher_in_the_rye_chapter_8_summary_shmoop.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/faluzotixupi/jelly_bean_flavor_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/fajetufekejo/bahadur_shah_zafar_poetry_in_urdu.pdfIn PDF document text
    • http://vexeger.rf.gd/2019_atrial_fibrillation_guideline.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/ruderefelajivumisexoxis.pdfIn PDF document text
    • http://fumexilali.rf.gd/81748634765.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/41162069594.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/sun_diego_rock_me_amadeus_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezodepugov/b._ed_entrance_form_2019_uttarakhand.pdfIn PDF document text
    • https://s3.amazonaws.com/migivewuwe/iba_guidelines_on_drafting_arbitration_agreements.pdfIn PDF document text
    • https://s3.amazonaws.com/dubiditiginowo/fonte_horizontes_script_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/lupuvogotog/autumn_in_my_heart_thai_version.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/3d_army_games_for_pc_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kasuwevovog/planet_earth_2_deserts_word_search_answers.pdfIn PDF document text
    • http://mixivilewajule.epizy.com/beped.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/standard_of_excellence_book_1_trumpet_jingle_bells.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_off0000f02d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF02D 5336 bytes
SHA-256: 32fe69fe1bcf6cf070c8f998b84b84574dfe3725821b4a0bef73668fa93b32c4
font_01_sfnt_off0001025f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1025F 11176 bytes
SHA-256: 6fa1546597fdccabb95920fd1f0daa83d1177f5f05e2dec2fe108d6026ec4f12

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