Malicious PDF — malware analysis report

Static analysis result for SHA-256 e054537e9bc24af0…

MALICIOUS

PDF

70.7 KB Created: 2020-12-30 05:25:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 0adcdcd960f04ef755ad9c60795705af SHA-1: eb25a14355223a1bbf4b6dc667de7bbcd5893992 SHA-256: e054537e9bc24af0c08f60cea6ddea229e254e407997830124cfbcdc21f6f987
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. The document body contains a lure related to 'sugar rush 3ds amazon', and an embedded URL points to a suspicious domain, likely for phishing or malware distribution. No scripts were extracted, but the presence of an external URI and the overall classification suggest a phishing or credential harvesting attempt.

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://trafficel.ru/strik?utm_term=sugar+rush+3ds+amazon PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365660/normal_5f875ae2c5a3e.pdfIn PDF document text
    • https://cdn.sqhk.co/zikegasenar/wdu9gdq/national_geographic_store_locations_singapore.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369182/normal_5f89967151127.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382784/normal_5f9c35108fee4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475212/normal_5fb80735d3c69.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366050/normal_5faa1f27a7b20.pdfIn PDF document text
    • https://cdn.sqhk.co/dipujabuxiw/Lhbhgjb/ear_infection_covid.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/fa654edc-6414-4aed-bfe0-b8ce65578cb1/36771926751.pdfIn PDF document text
    • https://s3.amazonaws.com/kakef/24500126941.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/bsc_3rd_year_physics_books_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/kopisigapub/time_word_problems_year_3_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/latufenaw/flight_rising_breeding_calculator.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/psychology_class_11_book.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c25c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC25C 5524 bytes
SHA-256: 2d12cf15478f428f6becd5c9686978cb6dd96a0992dff5074c517597ccce43ce
font_01_sfnt_off0000d4fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4FC 10548 bytes
SHA-256: 33a42751810ab55479bb8bffaaa234e3535ddb879860c898e69209a5023e1265
font_02_sfnt_off0000f92a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF92A 16092 bytes
SHA-256: e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848

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