Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee29c0f5cc7cb729…

MALICIOUS

PDF

98.4 KB Created: 2021-05-28 02:49:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 41eb475fbd9cb6bf825e4b5d916ad024 SHA-1: d70af86d4585669bf76c4c49de1493944da8f524 SHA-256: ee29c0f5cc7cb729d2ea8547cded801b225c3c2ed223772d497f02d44358e37a
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains an embedded URL that leads to a phishing site, disguised as a troubleshooting guide for a Keurig machine. The presence of this URL suggests an attempt to trick the user into visiting a malicious website, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/strik?utm_term=how+to+get+rid+of+descale+message+on+keurig+supreme+plus PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393647/normal_602f9439eaec9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446016/normal_5ff27b2b33c8c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393506/normal_6039ba4c77402.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417806/normal_5fcee2c93dc8a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425910/normal_606002106944b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4527237/normal_601a54ba18803.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446635/normal_5fe3038c5f487.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477873/normal_6064a2954b54f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408598/normal_6063ffd744030.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500877/normal_606431f453037.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452395/normal_5fe1d402a442f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379377/normal_601329f907137.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462056/normal_5fcd2cb58fa2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456998/normal_603b9fd5add56.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367311/normal_6004ceb08fa10.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383794/normal_5fdf80462f22f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375339/normal_5fcecd1101227.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/94d71f3b-8db4-4db6-8bc0-89b6ffa344fc/goxipopukusajimofi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/842da3c9-c94e-4e60-8e82-ed83a14c8ed2/sokolewapeda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff805578-0b59-4359-a488-c84d634eee83/the_walking_dead_graphic_novels_volumes.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_off00013ccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CCB 5592 bytes
SHA-256: a88790d9a260ea0721acf14933fdeb804364488b66ccd5d3701d1c52608cda87
font_01_sfnt_off00014fd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14FD8 12580 bytes
SHA-256: 4bebb368cff481ad25fab339d10859cb9eb97e4d6ed9788e518ebb38e134b5d1

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