Malicious PDF — malware analysis report

Static analysis result for SHA-256 416aadafd36d24fa…

MALICIOUS

PDF

75.9 KB Created: 2020-12-27 23:47:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: c3b44bee84534a2ce05e04457a5393eb SHA-1: 6932cc740af2f91801fe7bdf169b82117d4b051f SHA-256: 416aadafd36d24fa2caddf413294dc11273957e89a02563f5f010400404a0e5d
96 Risk Score

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://trafffe.ru/strik?utm_term=music+80%2527+s+90%2527+s+hits+love+songs PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4385197/normal_5fbac198b6339.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421959/normal_5fe3dc7249c31.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414869/normal_5fe010d7a9823.pdfIn PDF document text
    • https://cdn.sqhk.co/xoradofexul/pOjeigv/warofakivew.pdfIn PDF document text
    • https://cdn.sqhk.co/zurosewe/mz5iblV/22873030020.pdfIn PDF document text
    • https://cdn.sqhk.co/masamiwe/FAONggK/nuxesokulo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371010/normal_5f88b37347291.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/zuwimadaneb/87423215482.pdfIn PDF document text
    • https://s3.amazonaws.com/kodipopujufipig/mipoxavesijomozomuxexamu.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/cambridge_english_proficiency.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5900f50f-4230-47bf-9efd-9cd313e005f6/5860085223.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/jegilogikunodimabegebegod.pdfIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/template_border_for_wedding_card.pdfIn PDF document text
    • https://s3.amazonaws.com/legesiliv/geduwoxogolopiwotegumaz.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/advantages_and_disadvantages_of_asexual_reproduction.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_off0000eb1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB1B 5348 bytes
SHA-256: 81670da5253f5dca520f28aa49102bbe79c779b4f17a225551b0e547e2c1ff2d
font_01_sfnt_off0000fd6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD6F 10824 bytes
SHA-256: 52e99d3b9278b60ae97bbaf35a46b3077c56c7ca7bf63dab53fe2b20ba6146cd