Malicious PDF — malware analysis report

Static analysis result for SHA-256 64906aaf1885fae1…

MALICIOUS

PDF

63.7 KB Created: 2020-12-23 05:46:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f76bad444eced5bd264ff9f05118fbe6 SHA-1: d6d8084072ec422dc9710a6339c1fb0dedba2973 SHA-256: 64906aaf1885fae1ab780a431c09caef01b97aafbc90aecf66ce67cca0a6eab7
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://traffnew.ru/strik?utm_term=can+i+watch+slime+videos+please PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388416/normal_5f907899ceb24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386609/normal_5fbf34eb44481.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450156/normal_5fbb95f179005.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc33d14d49dd12447435ca7/t/5fcd225533187724c4f93675/1607279190747/86309760453.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5c959405d5340f34b395e/t/5fce6ba15d2e6f3bda731aee/1607363490569/85787772804.pdfIn PDF document text
    • https://s3.amazonaws.com/tosego/pirates_of_caribbean_3_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c18aae6-e780-4d1f-99e2-16607d1339af/zokasubigalaga.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/waxetiw.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c66b27a199023ab4af32/t/5fc298994f98375720345079/1606588570470/ncp_vpn_client_premium_apk_latest_version.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/4554932041.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/cartoon_hd_app_for_movies_and_tv_shows.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdc9fba3254dd38eed5a910/t/5fdcdabbe6fc5f5a915ff765/1608309435605/excel_set_footer_for_all_sheets.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e155104edf1d7780ac3e/t/5fc36a9861e25426e1a3b1c4/1606642328710/92826763230.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/32994328064.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_off0000bca2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCA2 5272 bytes
SHA-256: 0a7d01d4d56d90a56538f860f3ce5a6029108c9af80ca86bf944c4cc24afef9a
font_01_sfnt_off0000ce83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE83 10448 bytes
SHA-256: cfb6335e866bfc175443e7e465c437767b4da6b5f64998c05d2fff819a6c417c

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