Malicious PDF — malware analysis report

Static analysis result for SHA-256 752844f9ead0185c…

MALICIOUS

PDF

67.9 KB Created: 2021-03-29 21:29:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: edecb79332d79a34abf2cd414b753afc SHA-1: b1e942b3d56b455b8327c9c8fc0d60cd3f324855 SHA-256: 752844f9ead0185c0180ce1ff89d975a83ca2f38880041f90989a0d762c9b735
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://nipisod.ru/award?keyword=adverbs+and+modality+in+english+leo+hoye+pdf PDF link annotation
    • http://jotelefaxomawut.22web.org/liverpool_team_sheet_vs_ac_milan_2005.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408875/normal_5fe2c09a9f12d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500889/normal_60356968336b1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490542/normal_5fed6c84c9ae3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463034/normal_5fee3f984ef73.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378170/normal_60400e104615e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418747/normal_5fe4dca35a687.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448731/normal_5fcc5a11b1643.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/deb353e1-c925-40c3-95d5-51d33118a895/mesa_boogie_mark_iv_short_head_dimensions.pdfIn PDF document text
    • http://rajiwewovipu.epizy.com/ancient_greek_to_english_dictionary.pdfIn PDF document text
    • http://fuvarob.epizy.com/burnham_boilers_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/736321d4-b80b-4ffd-b213-37c9515316ad/96698471971.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00770822-e529-4c42-b57f-1111ed20f69d/61557817382.pdfIn PDF document text
    • http://vowajug.rf.gd/abbyy_transformer_3._0_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4fc8eff-1f44-4cb1-aae1-7beabb06dc15/the_analysis_and_design_of_linear_circuits_9th_edition_solutions.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_off0000cafb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAFB 5744 bytes
SHA-256: be2526f2737bade09e58a3a76656ced79c5c915b2ff101ed9b54a1f8dc0dc91e
font_01_sfnt_off0000de70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE70 10644 bytes
SHA-256: 38dabd3b2923a0cf2c7f7b1716cc7e4791a9293518626319c97f5990a9b981a4

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