Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b34d789bd3c7e58…

MALICIOUS

PDF

73.6 KB Created: 2021-03-15 22:38:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0c94df0a11029f8322019c0755553d57 SHA-1: 7410fe3f2bf78a33a02cd9a846ebb8cc135dffa6 SHA-256: 9b34d789bd3c7e581fa95ccca6623fa4f81c68514c06bf9ed66714d1a34f714d
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 0.9997

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://jottigo.ru/wix?keyword=castle+clash+crest+guide PDF link annotation
    • http://bopugafuwu.scienceontheweb.net/simple_ukulele_chord_chart.pdfIn PDF document text
    • http://kidepokapila.22web.org/kobinuzagowonegidu.pdfIn PDF document text
    • http://leporabev.mywebcommunity.org/how_to_force_connect_to_bluetooth_speaker.pdfIn PDF document text
    • http://nigamenivikuki.iblogger.org/97364139190.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/woxewiwupir/rizarekezuwanifu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/767ad3a6-81a2-43d7-b0bf-8b899f4cd42f/madojevufigoregon.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/gluten_free_products_in_india.pdfIn PDF document text
    • http://wepirizifomonij.epizy.com/alpha_stim_aid_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/9189751075.pdfIn PDF document text
    • https://s3.amazonaws.com/solonebosop/58216418034.pdfIn PDF document text
    • https://s3.amazonaws.com/fusidejebi/transformar_alqueire_em_metros.pdfIn PDF document text
    • http://jopivot.rf.gd/what_kind_of_formula_does_wic_provide_in_north_carolina.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/divorce_in_african_culture.pdfIn PDF document text
    • https://s3.amazonaws.com/wejuvono/database_administrator_job_description_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/68514810528.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e1f9baa-e724-459f-8be6-0957b58490d0/wizuruzevuzavewupezen.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/79162559325.pdfIn PDF document text
    • http://tagijonegularol.myartsonline.com/beethoven_piano_sonata_op_10_no_3_sheet_music.pdfIn PDF document text
    • http://zexiditakobo.rf.gd/magujonogoxisetudelaw.pdfIn PDF document text
    • http://kidinefa.rf.gd/69882442583.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_off0000e564.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE564 5104 bytes
SHA-256: 124e4b57b307721a28ee0363f1f5c83c16ac1dfdb9b3d369bf004408580abcef
font_01_sfnt_off0000f6ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6AE 10192 bytes
SHA-256: 8ba4affe742b6b34abf1192564f6592bab81709dd5687ac80c9cbee1da8c1556

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