Malicious PDF — malware analysis report

Static analysis result for SHA-256 2befe30c524e7f60…

MALICIOUS

PDF

74.6 KB Created: 2021-03-23 16:54:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8f1b9cf96e084a4bad8d8e41de9e28f2 SHA-1: 906ee80bdcb979f8dd2af16eb2aa459d87df6caa SHA-256: 2befe30c524e7f6096b6d534a6fc6568a96128c6afb96bf8834c1e7c093861ba
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF that contains an embedded URL pointing to a suspicious domain, likely intended to deliver a malicious payload or redirect the user to a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to exploit users through deceptive 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://jumiwimov.ru/award?keyword=edward+said+out+of+place+pdf PDF link annotation
    • https://cdn.sqhk.co/jotapepikota/heMxgeg/xoruxilukizupolexo.pdfIn PDF document text
    • http://shop-kid-toys.online/daluwazapanrhvri.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389352/normal_6008e886762b3.pdfIn PDF document text
    • http://fridgeservice.ru/dan_brown_robert_langdon_reading_orderdztac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469365/normal_6029a39a1b355.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464052/normal_6043476784c58.pdfIn PDF document text
    • https://cdn.sqhk.co/mifijizudi/jcZhfgd/36753368100.pdfIn PDF document text
    • https://cdn.sqhk.co/waxigapo/khfjdhh/tic_tac_toe_game_in_java_applet.pdfIn PDF document text
    • https://cdn.sqhk.co/romilononove/hdM4jc2/66194224124.pdfIn PDF document text
    • https://cdn.sqhk.co/xijisejes/dDicegf/moto_rider_go_highway_traffic_game_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382190/normal_603e8717d7cd9.pdfIn PDF document text
    • https://cdn.sqhk.co/belebudetub/cVrkUKx/best_voice_recorder_app_for_macbook.pdfIn PDF document text
    • http://italiahot.space/658296294484fehy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492286/normal_60341b5e12928.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427079/normal_5ff22fe8620fd.pdfIn PDF document text
    • https://cdn.sqhk.co/tidelefuzin/0Wdijja/koforusufemubewusali.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/fumiposamisur/touch_of_heaven_hillsong_piano_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/rikolesafuwofar/tagalog_dubbed_anime_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/pululusodogi/uv_spectroscopy_applications.pdfIn PDF document text
    • https://s3.amazonaws.com/venunamazozuzo/coliformes_termotolerantes_na_gua.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_off0000e7e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7E2 5196 bytes
SHA-256: 3a89840a8adb3ba462623b51606b8872fd536dac39aec33737ca43157494fca5
font_01_sfnt_off0000f9b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9B9 10448 bytes
SHA-256: 1dae9cf7d72f1cd5751d3256da8ccc687b5c7550e83ef6dee9a61f61104eae67

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