Malicious PDF — malware analysis report

Static analysis result for SHA-256 e230145e21b40c77…

MALICIOUS

PDF

71.0 KB Created: 2021-02-15 13:07:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: c16ebc7663e38595796601ac6e3cd033 SHA-1: 876c78d4c0bbf573bb6a5bedca72e8c329bad7d6 SHA-256: e230145e21b40c77e554f036d0f05becda0f1bb74ad0ec345ba1f69d894c5049
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://crophysi.ru/wix?keyword=worksheet+on+waves PDF link annotation
    • http://vejobazure.22web.org/autodesk_inventor_2019_tutorial.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458428/normal_5fd696ab1ac7a.pdfIn PDF document text
    • https://cdn.sqhk.co/ranemagesoga/QEFgfwu/top_petroleum_engineering_colleges_in_tamilnadu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417208/normal_6007b0252f95d.pdfIn PDF document text
    • https://cdn.sqhk.co/sabimejuka/fcxXxcm/clash_of_kings_bot_apk_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382004/normal_6021979e23ded.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/nafamaragisek/92515676960.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/23834777975.pdfIn PDF document text
    • https://s3.amazonaws.com/zesixefe/gatipifesaxup.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/html_css_bootstrap_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/858062474.pdfIn PDF document text
    • https://s3.amazonaws.com/xuvamuba/76444888117.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_off0000dbd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBD6 4968 bytes
SHA-256: ea8354064319e47132d851008ee0c0a8963e9d724894951161827b90ccb99d31
font_01_sfnt_off0000ecd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECD6 10240 bytes
SHA-256: 93f9062a1818154ee605ffabf446ea754a3a9a7f6335b48c6470b7f8b7473f50

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