Malicious PDF — malware analysis report

Static analysis result for SHA-256 09c820cf51d5db89…

MALICIOUS

PDF

83.5 KB Created: 2021-03-24 12:37:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 8f45d6e3573b7c6d9ef4e6c470ccb497 SHA-1: b499f2ba396d8f4239f16939fb530f77454f0582 SHA-256: 09c820cf51d5db89cd94d8d60ffd78e52bb658aef9399a056124494499cee165
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of external links, many of which point to potentially malicious domains, suggesting a link farm or phishing lure. The document body, though heavily obfuscated, appears to be a disguised attempt to trick users into clicking these links. The presence of PDF-specific heuristics like 'PDF_URI' and 'PDF_SEO_LINK_FARM' further supports this analysis.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8462

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/strik?utm_term=panasonic+genius+prestige+plus+inverter+microwave+manual PDF link annotation
    • http://prodson.space/233652168309a933.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384831/normal_5ff2e29203b85.pdfIn PDF document text
    • http://iclod.tech/why_are_my_keyboard_lights_not_working_mac6gwz9.pdfIn PDF document text
    • http://copyright-supporthelp.com/koretoxanivclb31.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467030/normal_604885e5c53dd.pdfIn PDF document text
    • http://swiss-gear.shop/mitsubishi_plc_programming_booksone8u.pdfIn PDF document text
    • http://gopagafab.medianewsonline.com/remove_watermark_expert.pdfIn PDF document text
    • http://odebayitrafikhizmeti.com/green_day_holiday_drum_sheet_music76uv5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367911/normal_60176c1ea6d4b.pdfIn PDF document text
    • https://9fd4a267-a675-4462-b2a8-34848e7262be.filesusr.com/ugd/3835dd_ec848d75ec5e477c8f656f588ec1ded3.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tudawufed/britannica_world_atlas.pdfIn PDF document text
    • https://c1f973cf-d719-4acb-8f9e-cd83ae4fb94d.filesusr.com/ugd/057766_83393c966e8049708b772b408773c1b3.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/neviwove/health_assessment_form_nursing.pdfIn PDF document text
    • https://911f1565-2faa-4874-b261-330d521e7362.filesusr.com/ugd/f46427_bf33bb2968f147c4a81a61bddbbf6e81.pdf?index=trueIn PDF document text
    • https://c504e2ef-f928-4e80-b5b1-fc05046f432e.filesusr.com/ugd/247f25_68baf894dd6c45c6b4b14a0f1f2b3719.pdf?index=trueIn PDF document text
    • https://9fc80a0e-b25b-4135-afeb-9811a1ea6bf8.filesusr.com/ugd/91e123_f6b558ef4fb645e786a49e5371de464d.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/daselex/black_batman_wallpaper.pdfIn PDF document text
    • http://wulibazosuxib.onlinewebshop.net/gelila.pdfIn PDF document text
    • https://37976aa0-f55f-47d3-847a-8d185b13ebf6.filesusr.com/ugd/1d6212_0fadb521797f4733ae81505a99b602c5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/rirusozo/tupawokeduruvevexun.pdfIn PDF document text
    • https://s3.amazonaws.com/tokafanawa/bexadelewizarexopovodu.pdfIn PDF document text
    • https://0dd0cd87-80d3-4eb5-b9c6-73c43c3a6fca.filesusr.com/ugd/f0b6b3_7d5883fbad854b8cb63c55a8606b436c.pdf?index=trueIn PDF document text
    • https://bea00909-aa88-4d38-ac88-e56db460b486.filesusr.com/ugd/923104_41f17ccc73d24a87bad70a8a07562bb9.pdf?index=trueIn PDF document text
    • https://3064a0a7-8496-4b95-be1e-56094aee372f.filesusr.com/ugd/0cf4b9_ef168f70da75404fbd518399119756d5.pdf?index=trueIn PDF document text

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