Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef1b44d2cbdc3b96…

MALICIOUS

PDF

74.8 KB Created: 2021-05-01 04:41:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3be41fd576696a9e9f735793a81cead2 SHA-1: b0e026fb1741bb84bd076340e6b37b2c609f7535 SHA-256: ef1b44d2cbdc3b963c23fbae92e74d5c4b870216ce156ae6d616dc911392312f
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 0.9960

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://seumenha.ru/strik?utm_term=d%2526d+dm+screen+wood PDF link annotation
    • http://faxusigeroles.sportsontheweb.net/78781185786.pdfIn PDF document text
    • http://zorimiba.iblogger.org/shoretel_phone_system_reports.pdfIn PDF document text
    • http://muzibatixabu.mypressonline.com/kixuwebiv.pdfIn PDF document text
    • http://mepamoso.sportsontheweb.net/bosch_tassimo_t20_manual.pdfIn PDF document text
    • http://wapividazofar.scienceontheweb.net/6925046085.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/dupula/gipunaxefepizonumilele.pdfIn PDF document text
    • https://s3.amazonaws.com/wexukufedepim/what_purpose_does_the_setting_serve_in_hills_like_white_elephants.pdfIn PDF document text
    • https://s3.amazonaws.com/kumasala/38396839080.pdfIn PDF document text
    • http://kukalawewo.epizy.com/52287752770.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/blood_donor_healthcheck_form.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9113a08a-0e92-4d7b-b369-5fd9b329f917/2013_dodge_charger_engine_diagram.pdfIn PDF document text
    • http://pifowatasaputi.epizy.com/english_speaking_course_free_download_in_telugu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f412d33a-a62a-4ef5-9211-6417c755f7e6/75375728718.pdfIn PDF document text
    • https://s3.amazonaws.com/vogubivajavofu/bible_malayalam_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lupuvogotog/82832334182.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/kobugikigalox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/492585d5-38cf-4467-b8d4-82dcc563bec5/java_spring_framework_tutorial_with_examples.pdfIn PDF document text
    • http://vometavofol.epizy.com/86454513791.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8050108a-084a-4834-9cb0-d7dd3de932ce/rolagebinonesu.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/pdf_file_viewer_app.pdfIn PDF document text
    • http://nuluwajewugutik.onlinewebshop.net/74927868150.pdfIn PDF document text
    • https://s3.amazonaws.com/setigafat/heavers_farm_primary_school_ofsted_report.pdfIn PDF document text
    • https://s3.amazonaws.com/ropuba/pivot_animator_4._1._10_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/percy_jackson_and_the_battle_of_the_labyrinth_google_docs.pdfIn PDF document text
    • http://jetelusaxidu.epizy.com/nulun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6933158e-b1d0-461b-80c1-ebaec3dd7a73/14529642925.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB3D 4156 bytes
SHA-256: bb1702a9e9b617346157f9ea6f36cc14559c37d4a4a2cf683ebd57dce9d2c082
font_01_sfnt_off0000f96c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF96C 10784 bytes
SHA-256: 3832a7d4c1018b0c27186dd8da59112d926881e1dac5274673bf0017cedc2fdd

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