Malicious PDF — malware analysis report

Static analysis result for SHA-256 cab8852db0def3eb…

MALICIOUS

PDF

77.5 KB Created: 2021-03-13 16:04:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 40cf02dd629732d8fd2a4e3255d65fd3 SHA-1: de5f6a80bd4ab1069ddfb1c93a662bba8c0f2029 SHA-256: cab8852db0def3eb1d7962f172ae2493170b1e1bb59c2ec5f0c94f05e4b9cb02
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 0.9995

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://ponafet.ru/strik?utm_term=best+books+to+learn+ethical+hacking+for+beginners PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4495251/normal_6027ddd615661.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468553/normal_5fe270aa5c8cf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415077/normal_5fdcf5d27f69c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387241/normal_602155b10f926.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4506063/normal_603b26cbb60b0.pdfIn PDF document text
    • http://giwodusab.iblogger.org/vufewep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392452/normal_60220d38ac9d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422912/normal_604c966a95abf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421640/normal_5fdc1ab5c295a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449599/normal_5fcf9e618fb65.pdfIn PDF document text
    • http://famafivas.iblogger.org/adobe_illustrator_classroom_in_a_book_2020_ebook.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427284/normal_604846c1d8718.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/d7814c80-3389-49ae-90a2-4a46e8c2b0d0/codecademy_intro_to_javascript_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5995ad2-1e6b-481d-82fe-e84618fbabd0/humayun_ahmed_all_books_file_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c7cf9e1-2fb2-4a9d-943d-76ccfe5428b4/the_river_radio_station_front_royal_va.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c351834-8bf4-445f-b6b4-cfefc7db05d1/30918158095.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9db78348-9275-4d17-a03b-6b8711071db7/tusatajifaluwikulatosim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a63d3140-6c53-4875-956c-fad5f3422a4b/why_is_my_transfer_speed_so_slow.pdfIn PDF document text
    • http://jewojaregoluwat.epizy.com/captain_america_shield_hd_wallpaper_for_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9059ea6b-0200-4c54-883f-2225b12bceef/garmin_vivosmart_4_fitness_tracker_review.pdfIn PDF document text
    • http://wodafasu.epizy.com/4868783873.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8b140d3-66b9-4675-ab6f-e2be34315386/dojawoduwopetevad.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f165.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF165 5396 bytes
SHA-256: 9e34529aa5ac55faf02a0f2be356eaa3e47f891e64646a211445e5f7831fd599
font_01_sfnt_off000103c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103C4 10648 bytes
SHA-256: 0d6d131e8ec43ab7d23173b1e7145f098045f1c58debddbd37c8898842ed79c4

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