Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd18c82713c9a8b1…

MALICIOUS

PDF

76.2 KB Created: 2021-02-18 21:06:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 92d1b4f7d8f2febaf842589527b5ce1f SHA-1: 0d52028caac770f231b29cb12038e8671c416824 SHA-256: bd18c82713c9a8b1b0829159a75ad8d9f020025c0297491b5596343c317c0ffe
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is highly indicative of a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. Although no scripts were explicitly extracted, the presence of an external URI suggests an attempt to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://baarspo.ru/wix?keyword=language+of+god+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403270/normal_5fe9e4e514b66.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425514/normal_5fec3d6d9f38b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499656/normal_601b91c8770a8.pdfIn PDF document text
    • https://cdn.sqhk.co/jijasitov/gQ0g0ge/century_siege_td_battles.pdfIn PDF document text
    • http://idealica-ufficiale.site/484500553568p9oz.pdfIn PDF document text
    • https://cdn.sqhk.co/dogatefi/eyhbidO/ruqya_mp3_by_saad_al_ghamdi.pdfIn PDF document text
    • https://cdn.sqhk.co/kofuvufexo/ifqajco/59084945995.pdfIn PDF document text
    • https://cdn.sqhk.co/tavaxikanabu/h44ijZV/bozenewikokijonukunuvus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462066/normal_601469f432e5d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382966/normal_60171d4fde0d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424010/normal_600dcf8508262.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381095/normal_5ffc12d15d9df.pdfIn PDF document text
    • https://cdn.sqhk.co/vivakawibaki/wQieZih/cute_pet_wallpaper.pdfIn PDF document text
    • http://naturalik.fun/vehicle_bill_of_sale_california_templates9l4i.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469827/normal_600fd624bb071.pdfIn PDF document text
    • http://igclienteam.com/gezizuxezafikswnn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472206/normal_5ff52482b1c06.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://s3.amazonaws.com/mozirolinitaje/canon_mp287_printer_scanner_software.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/xezamomipinenanot.pdfIn PDF document text
    • https://s3.amazonaws.com/vazisi/student_achievement_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/mipeboro/badmash_number_1_video_song.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2F2 4600 bytes
SHA-256: 5a2a19d91afe086d033cce92ce7984d069dda09b5bfc946bcda00b4a622a9b58
font_01_sfnt_off0000f2a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A3 10148 bytes
SHA-256: ac60ce4467c387b78836321967ff7f00a533279d5e5d04871aa9d95f4ed2afb8
font_02_sfnt_off0001156b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1156B 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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