Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c6fc966f39928c7…

MALICIOUS

PDF

69.0 KB Created: 2021-04-02 23:12:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 0e953ce8995d9f48a6010ace5d6fa951 SHA-1: 8fa9b3989d592797037de853292da7ddc74194c5 SHA-256: 8c6fc966f39928c7cf6188763a515936941f416ac3ddc785e63aebb5f0842e0d
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 0.9997

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://leonvi.ru/award?keyword=bogy%25C3%25B3+bab%25C3%25B3ca+pdf PDF link annotation
    • https://cdn.sqhk.co/dedesonor/piaqhap/centurylink_email_settings_for_outlook_2016.pdfIn PDF document text
    • https://cdn.sqhk.co/xalibolopov/PVAhgtF/download_meteor_hammer_io_mod_apk_android_1.pdfIn PDF document text
    • https://cdn.sqhk.co/tiviluluje/GVY4Bgc/surviving_mars_colony_design_set.pdfIn PDF document text
    • http://midakurapujif.mypressonline.com/bd_chaurasia_vol_3.pdfIn PDF document text
    • http://kavelizopepi.mywebcommunity.org/projective_geometry_and_its_applications_to_computer_graphics.pdfIn PDF document text
    • http://xirijapip.mypressonline.com/self_declaration_in_prescribed_format_refer_annexure_e1_hssc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xasagode.myartsonline.com/how_to_start_a_stihl_weed_wacker_fs55r.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d40f867b-8014-42ba-8a8b-8cd4ee30b341/18434031048.pdfIn PDF document text
    • http://vatonafikokex.atwebpages.com/mathematics_derivative_formulas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c7864e9-ecd3-4e69-a1b0-cdf3d561874e/intel_dx58so_bios_update.pdfIn PDF document text
    • https://s3.amazonaws.com/kofabube/46119050881.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/98362992129.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e09c30c0-144a-4de8-bee1-5b41f31bf9f4/how_to_make_your_textured_walls_smooth.pdfIn PDF document text
    • https://s3.amazonaws.com/wudibirewuduto/18030192603.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/46773609797.pdfIn PDF document text
    • http://bavatesivo.myartsonline.com/thug_kitchen_enchiladas.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/d-link_dir-825_ac1200_review.pdfIn PDF document text
    • http://nomamazuzut.atwebpages.com/93353918358.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28e68459-60a0-44a9-8671-93932ead202a/bupovuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd6c0259-a99f-4d78-bd17-54c2b6e035c8/super_mario_sunshine_delfino_plaza_shines.pdfIn PDF document text
    • https://s3.amazonaws.com/fasudikek/sei_strategy_implementation_report_example.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_off0000ce80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE80 5444 bytes
SHA-256: d9be4c05f79627fbfa89b104f9b4b4e26706bfa029d74da1978d95c855e70e23
font_01_sfnt_off0000e0ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0EA 11800 bytes
SHA-256: 80ffe8e37f151534d56de029ba4e00a125f7b7b0fe0d0d9fafed69d9660feda6

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