Malicious PDF — malware analysis report

Static analysis result for SHA-256 da7aabcf2972f736…

MALICIOUS

PDF

73.1 KB Created: 2021-05-16 20:07:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 1fc4e37d30bbe6bb83547ee31a77cc7f SHA-1: 70292e317e7f19eb9212f85cffe3322b9eb9dce7 SHA-256: da7aabcf2972f736db87cebe78e5fb28a07283dfa32903ec24d0b7ca906afe32
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://zajinet.ru/strik?utm_term=vertex+vx+150+manual+espa%25C3%25B1ol PDF link annotation
    • http://nipokaxa.getenjoyment.net/epfo_registration_form.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475565/normal_5fe380e2d4e65.pdfIn PDF document text
    • http://zatoxuvisovapuf.sportsontheweb.net/5633539966.pdfIn PDF document text
    • https://cdn.sqhk.co/rujoremebi/ahq4bYi/my_little_pony_princess_twilight_sparkle_toy_commercial.pdfIn PDF document text
    • https://cdn.sqhk.co/zojudaje/hihcLKs/download_game_airtycoon_4_mod_apk.pdfIn PDF document text
    • http://favarivizuna.medianewsonline.com/body_parts_label_worksheet.pdfIn PDF document text
    • http://ruxuzosok.mywebcommunity.org/telemecanique_altivar_31_manual_espaol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495241/normal_5fdbfb86eb181.pdfIn PDF document text
    • http://tafuxasomup.getenjoyment.net/basic_c_programming_book.pdfIn PDF document text
    • http://korefubelexusiz.medianewsonline.com/identical_ellen_hopkins_summary.pdfIn PDF document text
    • http://sibatike.getenjoyment.net/what_is_a_cbs_code_for_supra.pdfIn PDF document text
    • https://cdn.sqhk.co/bipozipo/gighjfC/taritofejebad.pdfIn PDF document text
    • https://cdn.sqhk.co/dukosisevu/shehgBt/diwaraxiwalexi.pdfIn PDF document text
    • http://zutatowatipo.mywebcommunity.org/homelite_lr5500_generator.pdfIn PDF document text
    • https://cdn.sqhk.co/sukurorezib/EJijZ5k/red_boy_pizza_petaluma_coupon.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/wovigebi/87134547196.pdfIn PDF document text
    • https://s3.amazonaws.com/xukirizugukugi/96215274812.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/brother_mfc-7860dw_driver_ubuntu.pdfIn PDF document text
    • http://pizitibasowu.atwebpages.com/parej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1b4b6f8-c3f1-45c9-b9df-8cb4fad5cb92/4150421043.pdfIn PDF document text
    • https://s3.amazonaws.com/mipizaju/aprendizaje_basado_en_proyectos_caracteristicas.pdfIn PDF document text
    • http://nuluwajewugutik.onlinewebshop.net/77873302990.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58523944-48a6-4315-9d69-47c1d3c8f39b/how_to_make_origami_paper_claws.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_off0000d9fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9FC 5588 bytes
SHA-256: fafb0a93c5cd959522923557cdaba236b59069a7e27177f7fca9d428adc91949
font_01_sfnt_off0000ecb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECB3 12468 bytes
SHA-256: 62222f5aded60906903f82808baa583fe53a679498f9bb38392e882142936f30

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