Malicious PDF — malware analysis report

Static analysis result for SHA-256 dea076132a28f295…

MALICIOUS

PDF

81.4 KB Created: 2021-03-19 09:16:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 2289966a2da5fdb851a5240370fe8c67 SHA-1: 20c22db4baff40174b9dec04be250b5bc80841e3 SHA-256: dea076132a28f29556f04608741887225f0aac4cf27dea1cb9f7cc1120187d7b
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 0.9996

Heuristics 5

  • 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 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://midufefew.ru/strik?utm_term=motorola+g6+play+16gb+review PDF link annotation
    • http://kopogaxepaku.sportsontheweb.net/gebuvejumo.pdfIn PDF document text
    • http://reborasiruv.iblogger.org/android_dokkan_battle_jp.pdfIn PDF document text
    • http://davupopebuwiser.sportsontheweb.net/53498479800.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469640/normal_5ffd83fb31fe9.pdfIn PDF document text
    • http://bloomwithdeanna.com/hi_point_carbine_disassembly_manualciwf2.pdfIn PDF document text
    • http://sparzha.club/30599622301z0jm9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476567/normal_6033ad7c44196.pdfIn PDF document text
    • http://ru-payment.casa/xotopacszpz.pdfIn PDF document text
    • http://lnstagramsecurity.net/79948608806iclku.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453117/normal_603045133bc2b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368486/normal_5feeb11a02572.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/setikizo/vofakobineralekunubafupo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03372692-c8ea-4e96-b0cf-af02a91abfca/wigimidobutuwuluboporotag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df451e6d-3371-4262-98a8-6bbcb4f9ebce/42199661822.pdfIn PDF document text
    • https://s3.amazonaws.com/gurafoga/36046047516.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3d1c948-7df6-4f7a-a6eb-4153588830aa/26725396284.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89b7c60b-5e3a-4ff5-9fe4-8445e6ea981f/zoxemi.pdfIn PDF document text
    • http://mefugoniwiw.epizy.com/red_cross_first_aid_course_near_me.pdfIn PDF document text
    • http://titugol.atwebpages.com/i_m_bored_book.pdfIn PDF document text
    • http://gipenebome.epizy.com/97909110047.pdfIn PDF document text
    • http://luvabokinoleg.onlinewebshop.net/vampire_diaries_cast_season_5_episode_21.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 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_off0000fcc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC8 5412 bytes
SHA-256: 7ea8c92df8d5588d13d591bdf12045e1516c524c8139f3d480bb43dd09d541c8
font_01_sfnt_off00010f67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F67 11664 bytes
SHA-256: 5c80a0afcc71580fe10d54eb27b8e36228d4d963b483861d188083e7e66fe567

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