Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d47585a3846fddb…

MALICIOUS

PDF

72.6 KB Created: 2021-02-25 15:37:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a668c786b6bd574f018dc517bdfdf9ba SHA-1: 0b04ce8a8f63942d2c9b654c8a19504c478ad9c2 SHA-256: 2d47585a3846fddbeff1e9bba26765d33dc21f828c25bce4c412b91fb4d4da4e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://seumenha.ru/wix?keyword=thank+you+letter+to+search+committee+members PDF link annotation
    • https://cdn.sqhk.co/nudabesawi/qphhheo/final_fantasy_iv_advance_cheat.pdfIn PDF document text
    • https://cdn.sqhk.co/telapunojawu/ighjbjf/89763402723.pdfIn PDF document text
    • https://meripowubizaj.weebly.com/uploads/1/3/5/9/135959363/kezivonisozika.pdfIn PDF document text
    • https://bagopilijesab.weebly.com/uploads/1/3/1/4/131438775/nadusa.pdfIn PDF document text
    • http://sethel.xyz/zujevajos2rc1.pdfIn PDF document text
    • https://cdn.sqhk.co/ridijafugemi/jghh1eu/segerebitirefidagi.pdfIn PDF document text
    • http://artdebug.site/poxufewalevepolepocsiwu.pdfIn PDF document text
    • http://zuvels.xyz/maus_1_summary040z2.pdfIn PDF document text
    • https://cdn.sqhk.co/pidodalatip/fmv6bIv/galagenisofajorave.pdfIn PDF document text
    • http://tublitalia.fun/how_is_organic_chemistry_used_in_everyday_lifenu4bb.pdfIn PDF document text
    • http://redtea.space/bissell_proheat_2x_revolution_pet_pro_does_it_vacuumt4ul6.pdfIn PDF document text
    • https://cdn.sqhk.co/nuponoviva/hqlifhb/kepizimejuworerazumeligi.pdfIn PDF document text
    • https://cdn.sqhk.co/lamiwifa/t3Ahbji/3102348372.pdfIn PDF document text
    • https://cdn.sqhk.co/nulaliki/KichjT0/gipajolikekoma.pdfIn PDF document text
    • https://cdn.sqhk.co/letinumi/7Aep78E/felaxuwudagibelopojil.pdfIn PDF document text
    • https://cdn.sqhk.co/binuwaxe/orje6GB/bidinu.pdfIn PDF document text
    • https://cdn.sqhk.co/nuroteditu/dgqzjjI/cricket_through_the_ages_gameplay.pdfIn PDF document text
    • https://cdn.sqhk.co/muligumixe/ftZIqhb/zotepaxami.pdfIn PDF document text
    • https://cdn.sqhk.co/karadirimose/hiNgfwP/galloway_united_methodist_church_jackson_ms.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/rawesaragegugar/age_of_empires_2_mac.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_off0000e007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE007 5296 bytes
SHA-256: 04deacb89b744ca24930292f032fe2d4baec9b0a973cad49e44aa487a480f6b8
font_01_sfnt_off0000f1e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1E9 10292 bytes
SHA-256: b7473a8a9348e9893ebff5264dba5b3a5259a10966c20ed0527263b0e4de4d8d

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