Malicious PDF — malware analysis report

Static analysis result for SHA-256 57c947b657e53bde…

MALICIOUS

PDF

90.8 KB Created: 2021-02-26 11:47:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: a241b2420fafa43dbf6703793a73f2c1 SHA-1: dcd63513595a6208078f9e211ebd114b03a9d2ee SHA-256: 57c947b657e53bde4c464a5d3719240a92c7f42021ba90e79e5b569f6a2ab4a5
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'fokemale.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, appears to reference a Samsung TV review, serving as a lure.

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://fokemale.ru/strik?utm_term=samsung+55-inch+curved+4k+uhd+tv+review PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4487618/normal_5fe2d9977bf5c.pdfIn PDF document text
    • https://cdn.sqhk.co/kizajituxab/agc10KD/cobone_deals_special_offers.pdfIn PDF document text
    • https://cdn.sqhk.co/noperizapewo/Xhahfgs/car_action_games_racing_2020_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408865/normal_603527e211378.pdfIn PDF document text
    • https://cdn.sqhk.co/mowasikuso/Iciigfa/red_vs_blue_zero_episode_1_review.pdfIn PDF document text
    • https://cdn.sqhk.co/zizenozi/4TjggeL/66928612625.pdfIn PDF document text
    • http://fragcups.com/jugonibolananuxarniqrj.pdfIn PDF document text
    • https://cdn.sqhk.co/lusoxepero/idSzhc9/download_tamil_keyboard_for_android_phone.pdfIn PDF document text
    • https://cdn.sqhk.co/demanajinu/3ifihjf/bonetovovipipitigonesawom.pdfIn PDF document text
    • http://czecheducation.space/jixijasidexakejuznwy9.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/luxelula/magnifier_sheet_for_reading.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/table_manners_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/xurifop.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/spring_boot_interview_questions_and_answers_javatpoint.pdfIn PDF document text
    • https://s3.amazonaws.com/vuterijoze/2381225155.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/beginning_intermediate_algebra_5th_edition.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_off000121b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121B2 5884 bytes
SHA-256: 6259063d0bef2a7174eddb340989977d9a57a0250c9d57dd9217bdfa6e20d791
font_01_sfnt_off000135af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135AF 11316 bytes
SHA-256: 51b1a47daf38fe750155386ad39faeaa7af55546efd6d2cd9b11053b4a1b932d

Open this report in the interactive analyzer, or submit your own file for analysis.