Malicious PDF — malware analysis report

Static analysis result for SHA-256 20ba98622321e0fe…

MALICIOUS

PDF

82.1 KB Created: 2021-03-29 13:32:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 8fd0e07aa02e6bf7b8d6237e0e8b6b8f SHA-1: 5b5f387c20596decd7bc166fd7ddf87c75dd083d SHA-256: 20ba98622321e0fed090e7a4cefba70564b040ebd2e6c8a71acbb840d725e912
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 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/award?keyword=breathing+exercises+for+anxiety+pdf PDF link annotation
    • http://pusewuvi.medianewsonline.com/livre_cours_de_franais_pour_trangers.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410985/normal_5fefa2ef75bbf.pdfIn PDF document text
    • http://kikababono.mywebcommunity.org/31020999072.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378383/normal_5fe2668408488.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382976/normal_5fc736dabcfb1.pdfIn PDF document text
    • http://wawesoja.sportsontheweb.net/ruvaboluwidijurepu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475992/normal_603fefb562492.pdfIn PDF document text
    • https://cdn.sqhk.co/tovisegag/jgHggjj/youth_rewards_cash_apple.pdfIn PDF document text
    • http://sweetygirl.club/74153398657kubp6.pdfIn PDF document text
    • http://jonebosu.mywebcommunity.org/28181562110.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385213/normal_603525825c93a.pdfIn PDF document text
    • http://comp-arenda.site/medical_terminology_workbook_chapter_10it1b.pdfIn PDF document text
    • https://cdn.sqhk.co/ragejeli/WB1ifd4/binabibagibuf.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://s3.amazonaws.com/wifukedot/jurassic_park_trespasser_remake.pdfIn PDF document text
    • https://s3.amazonaws.com/libusamagowuvo/online_virus_scan_android_phone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/549676ab-b72a-467c-9f9d-86541d31163e/nursing_theorists_and_their_work_martha_raile_alligood.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e0f6350-ca14-4987-bd1a-549b4604361d/how_many_questions_are_on_the_permit_test_in_mississippi.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/94849699253.pdfIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/vepugekepuvekuxubelajo.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/8280433787.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10c6b003-f578-4617-b500-f7c9b014a796/diwadozopasujuzobotevunu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64137e0b-d4d4-41c5-9b86-7e22812c4caa/rezotaxefofu.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_off0000f7dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7DD 5392 bytes
SHA-256: 09cc911029af1691c82d78e310174203f14aa6958748a852a2345dce9f932b4c
font_01_sfnt_off00010a34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A34 10048 bytes
SHA-256: abcc5428411c7775dde158a03c6ef18d42c9dbb8550dddd361b28b15612b3d59
font_02_sfnt_off00012c9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C9E 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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