Malicious PDF — malware analysis report

Static analysis result for SHA-256 e47d1eb85490414f…

MALICIOUS

PDF

72.2 KB Created: 2021-02-23 07:10:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: f2827c05db568b694c447e53a433641c SHA-1: 1b0329d478abbd004741f68297bd21ed60be2859 SHA-256: e47d1eb85490414f695ed4944714634322cad537a7d11aaad02788329f17ef51
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://leonvi.ru/strik?utm_term=what+is+a+web+services+printer PDF link annotation
    • https://naxosetoj.weebly.com/uploads/1/3/0/7/130775404/zipozawe.pdfIn PDF document text
    • https://fadufavibog.weebly.com/uploads/1/3/4/8/134889314/4670327acb15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484821/normal_60347fb5d5878.pdfIn PDF document text
    • https://dojebuxepoviguf.weebly.com/uploads/1/3/1/4/131407435/2181784.pdfIn PDF document text
    • https://wapaberupuz.weebly.com/uploads/1/3/5/3/135397773/bewadinokexigone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421062/normal_601eb40f966a6.pdfIn PDF document text
    • https://midamexup.weebly.com/uploads/1/3/5/3/135314938/sokubulajebasad-litemuvakebidal-nepidesul.pdfIn PDF document text
    • https://cdn.sqhk.co/vuxesojogugu/jhfiiF0/foxyland_2_platinum_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/medujebukoma/hfhegg7/fobiwozubajumoxi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419413/normal_5fff4df2515e5.pdfIn PDF document text
    • https://cdn.sqhk.co/woteruzid/QN2Fwhd/febufonuvo.pdfIn PDF document text
    • https://sanawovixib.weebly.com/uploads/1/3/4/6/134653903/8576931.pdfIn PDF document text
    • https://cdn.sqhk.co/vumuwuxa/hgicG5E/photo_app_macbook_pro.pdfIn PDF document text
    • https://cdn.sqhk.co/sururezog/jq6jbjc/judadiw.pdfIn PDF document text
    • https://cdn.sqhk.co/jimumakevaji/jdwHiaT/monster_hunter_world_fighting_tutorial.pdfIn PDF document text
    • https://dutumeparozawa.weebly.com/uploads/1/3/1/1/131163590/2090195.pdfIn PDF document text
    • https://cdn.sqhk.co/jixuvepabu/Jgcidja/59904597159.pdfIn PDF document text
    • http://xapepinozex.22web.org/nuvetovuzip.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jedalavupu.epizy.com/gexidibazodekurux.pdfIn PDF document text
    • http://gatamabudawuf.epizy.com/pyplot_legend_scatter_size.pdfIn PDF document text
    • https://medlineplus.gov/about/developers/webservices/In 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 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE4D 5292 bytes
SHA-256: b25bdd7ec9b5166e0d8f1a3c705d0dc9c3670d342cc041ef5d4ec6a2c11491d8
font_01_sfnt_off0000f061.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF061 10372 bytes
SHA-256: 7160a67018dfbe7fc17e240c026bfb2d2791b34cb67a62186d2a3b40c5278c78

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