Malicious PDF — malware analysis report

Static analysis result for SHA-256 46f3e04319e98c08…

MALICIOUS

PDF

67.4 KB Created: 2020-11-18 13:53:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 894c6e9c88e4f26baa849ddf9938be42 SHA-1: de9475bef365905f451104c1c7a6506d8a5271d6 SHA-256: 46f3e04319e98c08f4567d1c67bbdc2e93b5ae5868b47f5456ae05d7487f7009
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://trafficel.ru/strik?utm_term=hodgdon+reloading+data+6.5+creedmoor PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369519/normal_5f8db186c062b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498893/normal_5fafb15072aef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459777/normal_5fa15ef852bd3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366033/normal_5f86f93d6f527.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375088/normal_5fa17470c7be2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425772/normal_5fa4f3c6eb00b.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/2e2b9fbd-89d4-403e-bb2f-3380705c6b61/bidevew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78689247-3eaa-4713-a362-88721bd48f03/88327028250.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8bb3106-4854-496a-81cf-6e7b86044c5a/34941143181.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5650823f-44c7-42d3-b21c-8877515c79a1/ph_and_poh_calculations_worksheet_pa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04cef4cf-243e-420c-a9c5-fb3a43681a12/sphax_1.2.5_tekkit_classic.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69f6a793-3904-4c7b-8919-d28e7d138454/12288285181.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_off0000ca4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA4D 5352 bytes
SHA-256: 61214e169b462bd51e754740b6b065455704c6a4be0d5b08eb440717e08b7933
font_01_sfnt_off0000dc72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC72 10632 bytes
SHA-256: 2fb5c286be946a219b00253def1e98df5a437426cf2f460093be0972835a1329

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