Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ddcc26d30c82f93…

MALICIOUS

PDF

72.3 KB Created: 2021-03-08 20:19:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a7521ef266b0cb09e10ca32c1ec8a90a SHA-1: b172d63f07d5ce287e1e305b400c748a89333901 SHA-256: 0ddcc26d30c82f9324db87f88d9309ac126b293c3a20dc2c855b79fdb7b06927
134 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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://fokemale.ru/award?keyword=domain+driven+design+pdf+free+download PDF link annotation
    • http://inscarusa.info/fokufedaxizugimctyw8.pdfIn PDF document text
    • http://pressit.space/krups_nespresso_coffee_machine_how_to_use9bfki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464852/normal_6028feebb9389.pdfIn PDF document text
    • http://tesocoin.online/mulevutavaterotetijitk2rys.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488556/normal_5fe3c77cc4061.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453907/normal_601490d23852a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416327/normal_603fa8574fc61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381546/normal_601f3386a782b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424024/normal_5fcd3d3a43cde.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494661/normal_6001e7ce93d58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461746/normal_600ba988837d6.pdfIn PDF document text
    • http://findattime.com/89479747329l0d23.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://palalujopaxuv.epizy.com/how_much_is_a_battery_for_a_2009_toyota_corolla.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a169be5-8c76-4585-8f6b-ff26b229e3c9/sasexebowasametizuwi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6169d4e6-3147-439b-8029-421e133ae33f/how_to_thread_a_singer_simple_sewing_machine_3337.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/314bc437-1462-48be-8bfd-d766cd5f6e09/database_administration_fundamentals_course.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/nutasugegonerijoto.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/lightning_bolt_emoji_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/147a1873-2ec5-4245-ac5d-47ab88d710de/ryobi_2800_psi_pressure_washer_price.pdfIn PDF document text
    • http://zosuvupetod.epizy.com/bear_note_app_android.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_off0000dd51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD51 5512 bytes
SHA-256: 68b635a2ade6c2cce382eb0e9cda7338fbf08c4ea60732b848ed5ce259219d07
font_01_sfnt_off0000f010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF010 10508 bytes
SHA-256: a3398add52ce2decadb69777a50d3323b6b5aa5394df0c0c22f47b7800136a09

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