Malicious PDF — malware analysis report

Static analysis result for SHA-256 8564379991008610…

MALICIOUS

PDF

98.7 KB Created: 2021-04-08 21:52:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: f796ec11ee718bb7148d7799aabd821d SHA-1: d4519de6c2e4217440f7d73516e7e510bd269654 SHA-256: 85643799910086102d12a3c493709272624dda6e4f46857ad613b0558746a7f2
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 0.9997

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://botokaw.ru/strik?utm_term=how+to+train+your+dragon+4+dvd+release+date PDF link annotation
    • https://cdn.sqhk.co/dufadafakuti/eihgLhE/ludiwisa.pdfIn PDF document text
    • http://dumubemajizukov.medianewsonline.com/77823965358.pdfIn PDF document text
    • http://jofufunobek.sportsontheweb.net/83239909625.pdfIn PDF document text
    • http://wodekenizowa.getenjoyment.net/social_media_strategy_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/vizakifito/uhebCjg/xatezitowunex.pdfIn PDF document text
    • http://sidawiw.iblogger.org/90289321270.pdfIn PDF document text
    • http://diwolekeku.22web.org/naxekufasawedixareduzefis.pdfIn PDF document text
    • https://cdn.sqhk.co/rozesivotix/gdRjihi/puwekilufi.pdfIn PDF document text
    • https://cdn.sqhk.co/ruxuzobisu/fu9z4L9/kojederupalisifem.pdfIn PDF document text
    • http://lipuwisapi.mywebcommunity.org/boraxu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://delunax.rf.gd/campbell_biology_chapter_6_a_tour_of_the_cell.pdfIn PDF document text
    • https://s3.amazonaws.com/suxiweke/how_to_use_battery_calibration_pro_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/guess_the_brand_answers_level_125.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d729191f-518f-459b-ab78-0d3528cd9c6a/ansys_ls-dyna_users_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/visagogijulep/boanstvena_komedija_hrvatski.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d87b832-746a-47de-8b0d-1f671a55f07a/40766350687.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/599a7813-4438-4e4c-803c-6dfbcd5a6885/fisher_price_rainforest_jumperoo_pieces.pdfIn PDF document text
    • http://pepebejawu.epizy.com/xuketumuxorik.pdfIn PDF document text
    • https://s3.amazonaws.com/kufazete/37907729571.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78ac06f9-4cb9-442b-a906-fb31c08e5e3e/the_watsons_go_to_birmingham_1963_movie_trailer.pdfIn PDF document text
    • http://retiziwo.myartsonline.com/91007324299.pdfIn PDF document text
    • https://s3.amazonaws.com/daselex/kililijisofogakek.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_off000142f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x142F4 5296 bytes
SHA-256: cbf928ab39e1c2bbc0a6de57ffc94ad386c12fd02396cc1865ae044ad7f11d78
font_01_sfnt_off0001552a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1552A 12044 bytes
SHA-256: e9ca7d085571e1ef0c9953ced7d39ee748a9fe8a61b197fce629abdb929c041b

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