Malicious PDF — malware analysis report

Static analysis result for SHA-256 970b428bf7ea7962…

MALICIOUS

PDF

84.8 KB Created: 2021-04-05 07:47:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: ab6f21b5db1d5575eb63f6674a34aa6a SHA-1: dafe6b4ff0ee03e5317ea0eacd5619caf069ec5f SHA-256: 970b428bf7ea796207373bfb852dd48e6249e9da20ad71ec7225c16dbbbea623
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 0.9998

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://leonvi.ru/strik?utm_term=targus+ipad+mini+4+case+amazon PDF link annotation
    • http://lubevos.scienceontheweb.net/98341071431.pdfIn PDF document text
    • http://bajoreto.sportsontheweb.net/vepopolofi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501380/normal_602696dc07af9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425238/normal_5fcb3caf1912b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464303/normal_5fe84cada1ed8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/30664acb-d686-4645-be83-f3392c539108/attack_on_titan_season_4_episodes_reddit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80b4e210-e800-44a0-be9b-714ffd7aed51/tubira.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c4cbcf7-51d8-4b86-a05d-6528d01f1333/what_caliber_is_needed_to_kill_an_elephant.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb98e608-bd28-45b4-b261-157188a5c06f/32080100292.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5da9d1af-f3b8-4cfe-858d-8ed1d9764741/any_nail_salons_open_in_charlotte_nc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00e6f083-ff82-4f80-bca1-d092254431b2/16829855769.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e4dbb5e-04e5-4ace-b8a1-20fcf0ad85dc/huckleberry_finn_chapter_10-15_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/vampire_diaries_season_1_episode_19_cast.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/android_update_galaxy_s7_verizon.pdfIn PDF document text
    • https://s3.amazonaws.com/gosete/fowabuzagopadawinomam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/906fd9c5-6640-4081-b893-726ea5998963/votobokab.pdfIn PDF document text
    • https://s3.amazonaws.com/kuboki/chrissy_teigen_cravings_book_review.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/foodborne_illness_investigation_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7f7f96a-0354-494f-bcc6-59527163c8bb/80881492979.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE03 5252 bytes
SHA-256: 57a6e9b8aeeec410e4903ba936fa2a34a60d7d7815661e9e22e9dea5d20f1a6c
font_01_sfnt_off00010fc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FC4 11320 bytes
SHA-256: f8379357afea676638a991c072ad78c342720a8377930f10cc652090e9ea6598
font_02_sfnt_off000135f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135F5 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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