Malicious PDF — malware analysis report

Static analysis result for SHA-256 53246004cf5924fd…

MALICIOUS

PDF

93.8 KB Created: 2021-04-04 21:01:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: e64a052b992dc30397c6baa704e6d4ac SHA-1: 207a25b9e66b5c92677759cb226b7cd8b6aef9e0 SHA-256: 53246004cf5924fd5c4ebd3857a352ed28dc0e78ed4bf7f47416f5f247af7531
116 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. It uses a QR-code lure. 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 0.9967

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
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://dugedepap.ru/123?utm_term=us+visa+application+form+germany PDF link annotation
    • https://cdn.sqhk.co/pedagukar/96Umif8/papebefudusigolelida.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477886/normal_600a7a0e744bf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478438/normal_5ffbb06a140ad.pdfIn PDF document text
    • https://cdn.sqhk.co/lokutibu/jfQjaic/chinese_close_air_support_aircraft.pdfIn PDF document text
    • https://cdn.sqhk.co/kewixoretuze/f4Shgjj/audio_equalizer_app_ios.pdfIn PDF document text
    • https://cdn.sqhk.co/gizoxemovefi/c6T3sgg/all_planets_in_our_solar_system_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469852/normal_6066a33a51b33.pdfIn PDF document text
    • https://cdn.sqhk.co/milatepoz/jc4jbsv/sample_approval_request_letter_format.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385647/normal_6022985195e10.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/naxozelozude/yamaha_motif_6_for_sale_used.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/biology_answer_key_2019_gseb.pdfIn PDF document text
    • https://s3.amazonaws.com/tuletivotarupu/82878181814.pdfIn PDF document text
    • https://s3.amazonaws.com/xesigeze/3976000352.pdfIn PDF document text
    • https://s3.amazonaws.com/tevigotu/rajixebupotokade.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/caltrans_highway_design_manual_chapter_610.pdfIn PDF document text
    • https://s3.amazonaws.com/zebarufuridorur/20620089887.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/breville_800esxl_price.pdfIn PDF document text
    • https://s3.amazonaws.com/tevomenil/22765658680.pdfIn PDF document text
    • https://s3.amazonaws.com/xubifupi/50716849737.pdfIn PDF document text
    • https://s3.amazonaws.com/tuletivotarupu/nejafutugififukekot.pdfIn PDF document text
    • https://s3.amazonaws.com/bamepofewalada/17792007686.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/the_trials_of_apollo_book_5_the_tower_of_nero.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/esl_health_worksheets_for_adults.pdfIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/greatest_common_factor_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/verbos_regulares_e_irregulares_en_ingles_pronunciacion.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/62083192905.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_off00012c1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C1A 5488 bytes
SHA-256: 98d84281a144944a9bb98a70013b88b7f69cbc509b330e1bd663304ef5c3d637
font_01_sfnt_off00013ec7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13EC7 12596 bytes
SHA-256: f9c04a141e37d79d00f630192e73dcab46df4fadec670e8077db3a33b25dc875

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