Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5318f7a70532e90…

MALICIOUS

PDF

66.6 KB Created: 2021-03-16 20:47:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 8ffa09316e377ba326b725f79f1b37f3 SHA-1: 8f58f31aa0e4334925de89318e550c4f32400f78 SHA-256: e5318f7a70532e9027ab16e31e05231e9a434b1cd4b8a2a39f4c227c08f136d0
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-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://jumiwimov.ru/wix?keyword=blank+bingo+sheet+3x3 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374978/normal_602204a344355.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421966/normal_5ff25de907f9d.pdfIn PDF document text
    • http://xudefoxalobabif.iblogger.org/71821671213.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378171/normal_6041fd0e2e0a8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mugukogegib.epizy.com/31844871801.pdfIn PDF document text
    • http://tejoratu.epizy.com/82784134565.pdfIn PDF document text
    • https://s3.amazonaws.com/gonafoziguwewe/company_profitability_analysis_template.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/production_part_approval_process_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/jefixamutowo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f54cdaa-cd98-4dc9-a658-dd6d23c53fe4/1994_ford_ranger_manual_trans_fluid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4c33985-3df9-4af4-9388-e8c38ef5c89d/how_to_write_a_risk_benefit_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/ratixifo/mekaketurowizenek.pdfIn PDF document text
    • https://s3.amazonaws.com/siwixomudit/30276735484.pdfIn PDF document text
    • https://s3.amazonaws.com/daxemo/76809029665.pdfIn PDF document text
    • https://s3.amazonaws.com/godewumazek/la_senza_uk_size_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d028ede-8b3f-40d0-a86b-69b0cc3fc9de/m18_phantom_selfie_stick_review.pdfIn PDF document text
    • https://s3.amazonaws.com/wovigebi/android_builder_pattern_example.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3f7b1ba-ad58-41e6-b998-da813812b03e/vufolodu.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_off0000cab5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAB5 5336 bytes
SHA-256: 54c5557936ba9b3ed5d5c0bda7313c362f4323a21f262a384bec582a338e6e12
font_01_sfnt_off0000dce2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE2 9428 bytes
SHA-256: 29aa2772baa8f5b1bc6e28ebb90bef7b0ca036fd9a7f66b1ef39daf8f620eafb

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