Malicious PDF — malware analysis report

Static analysis result for SHA-256 e20e3365b76f88d4…

MALICIOUS

PDF

67.4 KB Created: 2020-11-11 08:10:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: dab34330bb70e1e991b0ac0ba8600f63 SHA-1: d4ddb6fa35fe3298fc82399f483ae0b1294424a5 SHA-256: e20e3365b76f88d499e7fe5fc70dce0cdb2ab090eb49dfd193d1f7057148f221
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 0.9995

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://trafffe.ru/strik?keyword=walker+movie+theater+perry+utah PDF link annotation
    • https://taburexil.weebly.com/uploads/1/3/4/3/134374137/jepulonokin.pdfIn PDF document text
    • https://vodipewelo.weebly.com/uploads/1/3/1/6/131637384/fefubulaguwobezitasi.pdfIn PDF document text
    • https://kelobutino.weebly.com/uploads/1/3/0/9/130969458/6977354.pdfIn PDF document text
    • https://repenakexo.weebly.com/uploads/1/3/4/6/134600143/xozojiwipone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369343/normal_5f9e8d35585a4.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/zetare/sobesufiwajup.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/cs6529-2_vtech_phone_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/vasijeloxagivirulama.pdfIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/letter_of_thank_you_for_attending_an_event.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8abcb225-d5c1-41ff-b084-c6879362013d/linegim.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_off0000cc4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC4B 5120 bytes
SHA-256: b568f576609e8115d8749b6f84a2cc0cd030df5e1359ba92eb23325954c519bf
font_01_sfnt_off0000dd9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD9D 10372 bytes
SHA-256: aeb6c7784905f73dec150020e9c5240482a5ee8fd7309ffed2be2c7b7298d4a5

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