Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c30d39cb239cc32…

MALICIOUS

PDF

60.5 KB Created: 2020-11-20 07:58:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5471f61bcfd8f53cf07ae3f6fc72638e SHA-1: 937f9f864ca5944ee613f93c034535a10d8218da SHA-256: 5c30d39cb239cc326bf44b31606fb69b6eaebaff712ea7bcf42e97cf16acce27
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 0.9996

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://traffking.ru/123?utm_term=orbit+6+station+manual+27896 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365599/normal_5f877ca0bc399.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386084/normal_5fb4072e8d1ea.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe509120-6123-472f-b17b-a315572ba12e/bigukazufege.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b0d01f1-1030-4b5d-8485-9ae02be519a2/readers_advisory_for_all.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16fa79de-1e37-4e6c-a84f-465fb4dff198/nfl_football_subscription.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f407bf79-a2fd-4f4f-9bd6-1b81512e8942/convert_rf_to_eu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fff06ea2-66fd-4adf-8689-c52fcb59b697/83992807764.pdfIn PDF document text
    • https://s3.amazonaws.com/jewizopukuni/ronixij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e31c9c0-3e37-4ebf-8a26-f878ea54bd5d/seguros_medicos_baratos_en_miami.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb36e91f-8d4b-4af7-8b83-d2a512d0cf0e/43734213634.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec09fddf-6264-479f-b9ae-e6149b7e7025/kiresudiwinatifuzo.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/bangla_all_serial_natok.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/actionscript_3._0_bible.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/23830632427.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f91b9ad-4654-4490-a729-664fdf91e5f3/debumi.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_off0000aeb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEB2 5712 bytes
SHA-256: 40a677fbd8376dcc61dcb2496c3074b53cae052d84d592c112e3e05aff548157
font_01_sfnt_off0000c1fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1FC 10428 bytes
SHA-256: df97372f50e5eef9f399fccf0e64631db852d0b0cb6b121d56d716185b87ca3d

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