Malicious PDF — malware analysis report

Static analysis result for SHA-256 83f6b000462ac9aa…

MALICIOUS

PDF

70.7 KB Created: 2021-05-18 14:00:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d09bbcd01f6282228621399cfcc32681 SHA-1: b0a743baa1ae078b2a5ff35161ed369b0ff03e72 SHA-256: 83f6b000462ac9aa9f09fec11640bd4f3f1519e3d3ef732e9a7eeec3510afd14
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 0.9993

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://gimoguvi.ru/strik?utm_term=tres+veces+tu+full+movie+online+free PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4413112/normal_5fe50b4d58963.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377371/normal_5fde3b62638f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464722/normal_600b6063d50c3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451742/normal_5fe186b4a3b35.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407327/normal_600be45dedcf6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416806/normal_6041b448de571.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462697/normal_6017401a69eda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499317/normal_603434f534e22.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475987/normal_5fd6708c2d82a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415530/normal_5ffd98db5f7d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410954/normal_6063ccfea51f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401732/normal_6062baeec20b5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459174/normal_600d0719d9475.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482619/normal_6014ec436b04f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478125/normal_5ff164136bb1e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459481/normal_601a30e68d540.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480589/normal_60092d964380c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410443/normal_6064b47277f11.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/lanorolowu/7_little_words_answers_puzzle_21.pdfIn PDF document text
    • https://s3.amazonaws.com/nonipesikiri/82512899841.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/zozajusoba.pdfIn PDF document text
    • https://s3.amazonaws.com/tinezedu/amphibian_deformities_current_state_of_knowledge.pdfIn PDF document text
    • https://s3.amazonaws.com/vebenok/xobavulakogefezinog.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_off0000d4c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4C1 4824 bytes
SHA-256: d6b9e499683e2ed80c06a0c655ee539c98d1ae7a6c20a91a36d63f9c99cca03a
font_01_sfnt_off0000e522.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE522 11720 bytes
SHA-256: c563d63e28e3af27c3e889ff938dac6a730f84737703732ed1457081d9135733

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