Malicious PDF — malware analysis report

Static analysis result for SHA-256 90c392ff7f5b7d24…

MALICIOUS

PDF

69.7 KB Created: 2021-03-14 04:54:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 7c62779d53d47478a3f6cc888ef4e432 SHA-1: 5fd0741b0f4f087518b8cad5384badfda0d8fbd5 SHA-256: 90c392ff7f5b7d24badc6a82de62f3f8db25e4e5c8d6aba945d8a57867f234f1
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • 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://mezovuduw.ru/123?utm_term=doyles+guide+family+law+barristers+sydney PDF link annotation
    • http://trixy-matrix.space/manifesto_of_the_communist_party_quotessn6lu.pdfIn PDF document text
    • http://edalovert.xyz/denotjjhna.pdfIn PDF document text
    • http://copytoshka.ru/canon_ir_2202_tonertro8i.pdfIn PDF document text
    • http://xsale.trade/download_osho_dynamic_meditation_music7v8p3.pdfIn PDF document text
    • http://help-feedback-amzn3.xyz/65360548000kee04.pdfIn PDF document text
    • https://pexagujunivati.weebly.com/uploads/1/3/4/6/134684520/laxunidepu.pdfIn PDF document text
    • http://reduslim-italiaoficial.site/g-shock_original_ga-110gb-1aerrpmxx.pdfIn PDF document text
    • http://futup.ru/tadolawiq6u3u.pdfIn PDF document text
    • https://jefaganogebe.weebly.com/uploads/1/3/1/4/131437435/7589661.pdfIn PDF document text
    • http://delaem-sami.online/58020623427ocr6o.pdfIn PDF document text
    • http://smartradiobf.ru/betalujisuzyu53.pdfIn PDF document text
    • http://blaugrana.ru/how_long_study_for_dental_schoolf6gwo.pdfIn PDF document text
    • http://knitfqph.site/62235092171qkn1f.pdfIn PDF document text
    • http://useporte.xyz/what_were_three_main_points_of_the_declaration_of_independencesxyjl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5fc5cc7-714d-44b2-b727-b772ca8ac474/49054195215.pdfIn PDF document text
    • https://s3.amazonaws.com/falufusu/20342830760.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/85945814425.pdfIn PDF document text
    • https://s3.amazonaws.com/nakevoja/libro_el_viaje_del_heroe_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/kasitijifozuto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d44d5939-54f4-408d-a9a0-2b880e77ff2a/kuwupomogukuvufofuxet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7d97179-886c-4df8-aefd-0d48ad06c138/84827858795.pdfIn PDF document text
    • https://s3.amazonaws.com/puretulenuza/star_lord_awesome_mix_vol_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23bfff62-7d82-43cd-8a7c-09f72ebb2789/26415074313.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_off0000d40a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD40A 5560 bytes
SHA-256: b9d8847c848a87d6658a23e2dafb5f975969daa2566e41a0df6896afd94efa0d
font_01_sfnt_off0000e6fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6FD 10144 bytes
SHA-256: 4d9072d13d31ca8e4a3a6d4e2d14a81449613a61c13c1e8c661a9bdd8ba69e28

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