Malicious PDF — malware analysis report

Static analysis result for SHA-256 8262b970487d61b4…

MALICIOUS

PDF

80.0 KB Created: 2021-03-18 18:26:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 0018d054c13039fb74c77b0582e22a8c SHA-1: 3f0793a8c94c0f496b4c3c39917a22c4ccc7ede0 SHA-256: 8262b970487d61b441a6678a0246b996a73902339b18baf518d91b50a71ceb8a
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely for phishing or malware distribution. ClamAV and ML classifiers also flagged this file as malicious. The document body, though heavily obfuscated, appears to contain metadata related to the wkhtmltopdf tool, suggesting it might be a generated document used as a lure.

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://jottigo.ru/wb?keyword=fishman%20aura%20spectrum%20di%20imaging%20pedal%20with%20d.i PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379732/normal_5fd0d55a12365.pdfIn PDF document text
    • http://hot-money.fun/theoretical_framework_examples_sociology8wxwv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389384/normal_5fd2ff73da7d7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382614/normal_5ff6b2cb999a8.pdfIn PDF document text
    • http://fridgeservice.ru/ebook_akuntansi_internasionalype14.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/wixanarer/character_traits_comprehension_worksheet_2nd_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/penale/heavyweight_bhangra_song_djpunjab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a378a2dd-4db4-4e87-ba81-a0903eb63137/amc_10_12_dates_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/miledu/cyberghost_pro_apk_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d588869a-688b-45d1-9c7b-1a6e174c450f/68541508494.pdfIn PDF document text
    • https://s3.amazonaws.com/fajujiju/hospital_name_badge_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/baaghi_movie_video_song_tinyjuke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca2774e7-922e-4fc5-8052-eedc286f851b/sozot.pdfIn PDF document text
    • https://s3.amazonaws.com/daxemo/numimumiforoxu.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/79502181890.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/lamb_red_wine_pairing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16d36f87-1fa0-42c8-af0a-994e8b5f3d8c/xakavibagike.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/general_training_module_practice_test_4_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/pavujiniz/91629301791.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE542 5568 bytes
SHA-256: d7840a791c3c41678b25fbebab80609597d566a63d8dc9da6c3b60e62b21ac7e
font_01_sfnt_off0000f819.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF819 10384 bytes
SHA-256: e227fdb811103e18aab3ca10262e0749fd159d484c5d3c3fee137da6257051c6
font_02_sfnt_off00011bb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BB4 16060 bytes
SHA-256: 5b0d2701ab39d2f69c66d7d16c60d8db0b323aa0832947137e757b5401d27330

Open this report in the interactive analyzer, or submit your own file for analysis.