Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc40814d3b5238c0…

MALICIOUS

PDF

87.0 KB Created: 2021-05-21 15:09:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 265f64f48567120b7c5d4343aa73deb0 SHA-1: 102cfc9482ff6b0168f33e8ae8ae67545358d340 SHA-256: cc40814d3b5238c0660304589a8cfae64e4ade42a5ed796b26ed329d96cc6afa
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 0.9998

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://kuzutuzo.ru/strik?utm_term=ravenloft+bleak+house+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4424013/normal_6012334836140.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450156/normal_606e20959db58.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/risalenefazozo/android_9_samsung_s9_bixby_deaktivieren.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f14a4e0-523b-43fc-a77c-c0d4d0b99814/spd_sx_pad_link.pdfIn PDF document text
    • https://s3.amazonaws.com/xunilukegez/54954568275.pdfIn PDF document text
    • https://s3.amazonaws.com/dorulusof/which_of_the_following_plant_assets_is_not_depreciated.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b0e1961-cefb-4f96-bbb3-147627d16364/nearest_burger_king_to_me_right_now.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67674557-6756-422e-a9b6-d0a84b4808f6/korean_basic_book.pdfIn PDF document text
    • https://s3.amazonaws.com/solonebosop/67141905899.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/bssc_graduate_level_notification.pdfIn PDF document text
    • https://s3.amazonaws.com/rogugagatuf/think_fast_and_slow_audiobook_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7aaf868-a800-4ac1-84c1-9879c133471a/escort_passport_9500ix_platinum_radar_detector.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d2de36e-c014-468b-8399-90afeb951f64/xekutuxitagabu.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/what_is_lower_boundary_in_math.pdfIn PDF document text
    • https://s3.amazonaws.com/pibajuwi/xojagi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e7b5f73-c541-4dcd-b178-1c051ec1728b/83662263118.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwosil/4054702044.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_off0001001e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1001E 5304 bytes
SHA-256: 9c072315c5253a2c27ebc9ef6d2ec11127a28e0b37a0e930e9b866a2d8dc9443
font_01_sfnt_off00011235.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11235 11148 bytes
SHA-256: bd91a728e050275e62ac26b9501d7d02050c6db0a637e6f3552dfb41f57c0173
font_02_sfnt_off00013836.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13836 16616 bytes
SHA-256: 5868e3cbc90c1c96838836c01da454b9fc870479cf67e8516f0db0a20edf6b50

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