Malicious PDF — malware analysis report

Static analysis result for SHA-256 79c93a40a8159cd6…

MALICIOUS

PDF

65.8 KB Created: 2020-12-01 01:40:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 03bcf6b89751b6b9e99460c8f32c68ca SHA-1: 272e36ea8b367ba6ee9cf773f9ffcbbab82a1633 SHA-256: 79c93a40a8159cd633e691769878fd11b0c13905b9f9664a69f98f28c405fad1
144 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, exhibiting characteristics of an advance-fee scam and urgency lures. It contains an embedded URI pointing to 'traffking.ru', which is likely a phishing or malware distribution domain. No scripts were extracted, but the PDF structure and heuristics strongly suggest a malicious intent to deceive the user into visiting a harmful external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/strik?utm_term=tomtom+model+1ex00 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4427811/normal_5fb50aefadc0e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374689/normal_5f9a8ae5155dd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471484/normal_5fb8ef66cc1ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416918/normal_5fa5a3c8e9803.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402481/normal_5fbf08252d772.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/db48c1f0-4caf-4104-9d45-23fe7de3adfe/costumbres_y_tradiciones_de_la_cultura_otomi.pdfIn PDF document text
    • https://s3.amazonaws.com/pafiganovavi/xuxexemeguwola.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/bullinger_figures_of_speech_used_in_the_bible.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e945af55-cac2-48ba-ad63-073c06fb73ad/nefijagiwefelano.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc101f96609fd0ee791e489/t/5fc12f7d08845d0924b53623/1606496136998/43818548451.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ad60e07-7644-4042-a2b9-bea8368b71e4/mapa_de_actores_turismo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/380ab8c1-da42-4411-8a4e-704623ac1dd5/xujepolisemexalanifogodi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3bf9f2e34347c70560205/t/5fc573503c6ccf69f317bd4b/1606775633619/effective_communication_techniques.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d10307e4-e9df-48aa-90ef-0eb07bc97c2e/28331515307.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5271907-85f5-4f65-a095-8ae7d7f1ed26/99312008647.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f70d272-2e8f-4113-8832-356f7eb93c7b/40836836146.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 2

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_off0000c47a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC47A 4700 bytes
SHA-256: a0e0e707901d46d4bafbbc85299a9f38c20ded220797384f5a90d6ee0f732b27
font_01_sfnt_off0000d46d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD46D 11456 bytes
SHA-256: 3d4b91fa1c4cf23e92010caa8dc2fa00b2c58eb3a9e77040644ca39b58c9a211

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