Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f254376a12f14e6…

MALICIOUS

PDF

75.2 KB Created: 2021-02-20 07:43:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 76fbbb3e4b0d2b0c26de8d00e01e4b84 SHA-1: b371f7e31f93c306a96ebf3b8796d444b85e813b SHA-256: 3f254376a12f14e65476e0c86ac28d1488df158b07ec471b7a97cafb0a0641f0
96 Risk Score

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-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://leonvi.ru/strik?utm_term=mr+robot+complete+series+blu+ray+review PDF link annotation
    • http://tikovg.xyz/pesuwirinezosanivppogg.pdfIn PDF document text
    • http://ontrade.top/tevagefowa1rtye.pdfIn PDF document text
    • http://fruitslope.online/telecharger_whatsapp_2018_apk_gratuit_pour_androidthtc1.pdfIn PDF document text
    • http://lastmarkt.ru/gender_pay_gap_reporting_deadline_april_2019xa9lt.pdfIn PDF document text
    • http://info-pages.ru/how_to_teach_your_baby_to_self_soothesbj5j.pdfIn PDF document text
    • http://kubevevof.iblogger.org/54874964892.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/mijumomub/48572441643.pdfIn PDF document text
    • https://s3.amazonaws.com/mizeteb/balsa_wood_sheets_melbourne.pdfIn PDF document text
    • https://s3.amazonaws.com/wuzalugiseto/antelope_canyon_trip_guide.pdfIn PDF document text
    • http://jujiruwer.rf.gd/83253934464.pdfIn PDF document text
    • http://mibofive.epizy.com/reduce_file_size_using_acrobat_xi.pdfIn PDF document text
    • http://pubupamosala.epizy.com/lapoxobo.pdfIn PDF document text
    • http://tasobigadegef.epizy.com/tbd_full_form_in_football.pdfIn PDF document text
    • http://gubojudojo.epizy.com/vuralesejabopusapadu.pdfIn PDF document text
    • https://s3.amazonaws.com/kugelilizibuwum/noruvusuwalisokemawunad.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/diario_de_greg_pelicula_actores.pdfIn PDF document text
    • https://s3.amazonaws.com/jukezeluf/the_real_book_piano_jazz.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_off0000e94b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE94B 5476 bytes
SHA-256: 6f4f590ec1674463cec184711261dc452072c1efa2d8915b2a5000f891018e4e
font_01_sfnt_off0000fbf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBF6 10396 bytes
SHA-256: a203e43195dd834c9c88ba2a2f0f4b10d393946746c225330f9a6bbf974a15ea