Malicious PDF — malware analysis report

Static analysis result for SHA-256 719be148c6f00cdb…

MALICIOUS

PDF

76.1 KB Created: 2021-03-04 18:33:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: bf8d82c56bef8d35676557978fac96a6 SHA-1: dbf9947862e3cd60ab688e0f918a5c688d881ffe SHA-256: 719be148c6f00cdb302dddd9c06a081bb1191c303f7d4875d7183b56005e3c7c
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to exploit user curiosity for malicious purposes.

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://seumenha.ru/award?keyword=how+much+is+a+first+edition+harry+potter+worth PDF link annotation
    • http://ceter.xyz/jean_baudrillard_simulacra_and_simulation_downloadw71b0.pdfIn PDF document text
    • https://cdn.sqhk.co/pulazapusaw/ijajcKG/80798708077.pdfIn PDF document text
    • http://orehi-siberian-force.online/11251825794pi5e7.pdfIn PDF document text
    • https://cdn.sqhk.co/vobevufubito/N6KhisU/voxupa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4528876/normal_603e70c84cc34.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476943/normal_60382f208b9d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413835/normal_603f42b88c720.pdfIn PDF document text
    • https://cdn.sqhk.co/gefimiwotux/Egijjie/school_ultimate_studying_assistant.pdfIn PDF document text
    • https://cdn.sqhk.co/meduxemij/Q4cjjhh/zuluxexujimop.pdfIn PDF document text
    • https://cdn.sqhk.co/zetuzire/gfii0ia/hot_wheels_infinite_loop_download_for_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/kewesowovim/igexOhg/sisalawepopozenavev.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412606/normal_5fe218f99330c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/eab67b9d-a433-4292-a68c-73649e111318/process_dynamics_and_control_3rd_edition_solution_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ae7a3c9-3584-4c7f-9a87-3183c60b9261/4932917891.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8200b7c1-be44-49a5-a218-73d04ff5ecb8/worudatigasukagipujis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5fabd8e4-6141-49d4-90d6-2ecfb5a4e507/samsung_smart_tv_40_inch_price_in_kenya.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF3B 5400 bytes
SHA-256: c4c2c041d54f26f07534e4d14edbe5034a7f26bd524dab5d01c608352876ad55
font_01_sfnt_off0000f181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF181 10448 bytes
SHA-256: 52e834e6bfbb2c4c7ec462077866e43998f15ca4a7e4881e732a2eafbca83e62
font_02_sfnt_off0001152e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1152E 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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