Malicious PDF — malware analysis report

Static analysis result for SHA-256 74e56c66d6cce228…

MALICIOUS

PDF

70.1 KB Created: 2020-11-14 21:06:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: bf9b09e7c07fe79dbc9383502a129418 SHA-1: b8e6c4e30501c00bdf251ab2313d7886e7b7fd5d SHA-256: 74e56c66d6cce22853d7abc271654eb23afd0db669fb0b889355a538899473a5
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://traffking.ru/123?utm_term=ap+biology+cell+cycle+regulation+worksheet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4411512/normal_5f95c53ab5345.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377414/normal_5f8da9184c2bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365567/normal_5f87a4288122f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406466/normal_5f948df5870d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372373/normal_5f9041c0760e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372735/normal_5f932141522de.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/wixamupelinere/20292231702.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fc28efa-9a8d-48f3-9452-b6fd5b9fd57c/bomarusolobisusojilomo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10c64ede-08c5-47d0-bb17-bd9a656ca852/67065323082.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c0791c5-c496-4de7-8b4e-4b052a8478e3/the_greatest_salesman_in_the_world_scroll_6.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c763ffaa-0aef-46b9-902c-f2ce5ff11738/62236472657.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7dfc3e69-7bad-4be8-b13f-817bc6361d03/bijegulanopadusazogawakop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbdb2267-4c05-4b5e-b8d4-debff11596eb/95067722827.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f431071-ff49-4bcf-a9e5-2bb55b23677b/81637543837.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f98a320-ef20-477c-9c63-2298bb4eb6eb/88198477798.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23108476-5f0f-44ae-a13c-2724a6706f72/kamesafisuponazozutep.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 4

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_off0000d600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD600 5584 bytes
SHA-256: 9e9e1dfef42a1d5f01030dfd78f053d502509b0bd625c73cc373581a53c00d69
font_01_sfnt_off0000e916.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE916 10140 bytes
SHA-256: 71cef268763c325282c52cb5c5d52ba2dc3852ec3df4791f454b1a9aabd4c9f2

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