Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ecc615fc1db020e…

MALICIOUS

PDF

71.9 KB Created: 2021-04-26 17:48:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 01cf349becd298e7d9a664ce94ff2b27 SHA-1: 2a3a6158b0c562d89cc6fada046e5c916f39240c SHA-256: 5ecc615fc1db020ece59312918b520b1cbebbacb78cc76910b1681b7a4a39329
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URL that leads to a domain associated with malicious activity. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest a phishing attempt to redirect users to a malicious site.

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://seumenha.ru/strik?utm_term=5+digit+remote+codes+for+sharp+tv PDF link annotation
    • https://cdn.sqhk.co/noneniwetav/bkhjGif/masters_in_international_business_salary_in_us.pdfIn PDF document text
    • https://cdn.sqhk.co/zivudasexoni/4oHhf9R/temifal.pdfIn PDF document text
    • https://cdn.sqhk.co/fipimomozuk/Qighio9/86741900049.pdfIn PDF document text
    • https://cdn.sqhk.co/bemememu/ggmawOO/37746522480.pdfIn PDF document text
    • https://cdn.sqhk.co/zizenozi/jfQQqqW/growing_crops_in_minecraft.pdfIn PDF document text
    • https://cdn.sqhk.co/batumozi/7jbkMja/81661070759.pdfIn PDF document text
    • https://cdn.sqhk.co/kinibemazoz/dUhihjr/superhero_mobile_ringtone_download_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/dodufiruw/jdhfhiV/52680654592.pdfIn PDF document text
    • https://cdn.sqhk.co/moserusoba/gdhifij/wuwamesuzajaxidekebal.pdfIn PDF document text
    • https://cdn.sqhk.co/lakivasulis/uhfUjig/balenciaga_hoodie_dhgate.pdfIn PDF document text
    • https://cdn.sqhk.co/rizijuwet/jgfNifQ/how_to_enter_goodreads_giveaways_on_app.pdfIn PDF document text
    • http://najariza.iblogger.org/haier_mini_fridge_coldest_setting.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f71d774e-b2d3-408b-b13e-8b736a18d8d3/zozamizoton.pdfIn PDF document text
    • http://batogejupimole.rf.gd/game_total_conquest_hack_cho_android.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/long_way_down_film_cast.pdfIn PDF document text
    • https://s3.amazonaws.com/wizidimawag/preparation_of_pentaamminechlorocobalt_iii_chloride_lab_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/492d1759-8069-4659-a0ac-f73eb2425512/zozadaz.pdfIn PDF document text
    • http://jobifizokugo.rf.gd/how_to_say_yes_thank_you_in_french.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_off0000dace.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDACE 5624 bytes
SHA-256: 563b92d510a16ed58847f6bbd783851d4e534b249dc0aad11c782812147f80ac
font_01_sfnt_off0000edd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD3 10580 bytes
SHA-256: 29784bd6453a5336c0ec875e790d92ab949a06c4ec7f67dadd906c3e24f7491f