Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ec4d2d56554f5a6…

MALICIOUS

PDF

68.2 KB Created: 2021-01-10 17:59:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 274119d4483bb3d9e323bc4329d10715 SHA-1: bf74962d682c08ecc371ddb365a70cff37ab2a5b SHA-256: 1ec4d2d56554f5a60d15971a4238374f0aad7bc6df1d9f74d922f5a592312a06
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic indicate it's designed to redirect the user to external content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffnew.ru/123?utm_term=how+to+say+you%2527re+welcome+in+french+language PDF link annotation
    • https://cdn.sqhk.co/wiwifudu/nJpieif/panda_evolution_cute_bear_making_clicker_games.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420907/normal_5fb2b78634106.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365636/normal_5f872a3c6bacf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426060/normal_5fe29c7289ffa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371003/normal_5fd16f6016331.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467038/normal_5fc9453db5835.pdfIn PDF document text
    • https://cdn.sqhk.co/koxixoneto/jKicic4/hill_climb_racing_2_upgrade_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/situdejoj/LWVjhrP/car_simulator_2015_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372378/normal_5fed643c0fbad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457857/normal_5fe25b7c909b0.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/patotale/9915536977.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/joel_mchale_show_episode_guide.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cc76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC76 5484 bytes
SHA-256: 7207c15f6dda4f31141274ffc7ec315018e06e2b8291a4fe3097c72412e24d5c
font_01_sfnt_off0000df15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF15 11216 bytes
SHA-256: 808f05fd97cccb53a0b76bd5833df2f98e2a5ca43cf58127f532e135ec8587d4