Malicious PDF — malware analysis report

Static analysis result for SHA-256 41d0d7e25556a1af…

MALICIOUS

PDF

79.2 KB Created: 2021-04-26 21:36:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 1adc2e0f52096b21939cc0ca5b9a16c2 SHA-1: 99f72cf9c65ae6b5d2c36547849677bdaa176958 SHA-256: 41d0d7e25556a1afab99de084af2cff400c25d339c2ecdc14c313bfb942cee35
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 0.9998

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://nipisod.ru/strik?utm_term=garrett+ace+250+operating+instructions PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4391335/normal_5ffdd22ae8b10.pdfIn PDF document text
    • http://roman-holidays.shop/51052507352gc4xw.pdfIn PDF document text
    • http://womuvizitina.mywebcommunity.org/75832901402.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381978/normal_6042d0ad6cadf.pdfIn PDF document text
    • http://fastpeysistem.online/fozukiwugutakolebofasaiq07.pdfIn PDF document text
    • http://godotobekof.scienceontheweb.net/definitive_body_language_book.pdfIn PDF document text
    • http://winoxolupuvil.getenjoyment.net/rsum_atomistique_smpc_s1.pdfIn PDF document text
    • http://richteam.site/30116633821606p3.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/gavobawum/sodidukil.pdfIn PDF document text
    • http://kuwijiti.myartsonline.com/kerisoxaruzigavuvukelid.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/sukazijen.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/xikafunuxanurejeludatofi.pdfIn PDF document text
    • https://s3.amazonaws.com/sefipa/tamil_movie_birthday_songs_for_husband.pdfIn PDF document text
    • https://s3.amazonaws.com/gofiguj/what_is_step_5_in_na.pdfIn PDF document text
    • https://s3.amazonaws.com/dowadotiju/medicare_benefit_policy_manual_chapter._8_section_30.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/helpdesk_system.pdfIn PDF document text
    • https://s3.amazonaws.com/boxujetanonikuv/how_to_calculate_vehicle_efficiency.pdfIn PDF document text
    • https://s3.amazonaws.com/juduk/xakaxupavixa.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_off0000f7ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7CA 5496 bytes
SHA-256: 7e34955e7c4f1ae71b722ecdb995a53196d2bcf79b4e04ae3ffcd7c4968f8d10
font_01_sfnt_off00010a8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A8D 10828 bytes
SHA-256: dca768ae70698a29f068124a05ab0d7383dd9fed4b1ba6dc2436f0943273bbb2

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