Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf40061ffe5f2cab…

MALICIOUS

PDF

71.1 KB Created: 2020-11-10 14:49:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 0ba293698d645bf3c6b4eee67176d202 SHA-1: 2b2410046a9df1c75a1e5278b91606cfc55da355 SHA-256: bf40061ffe5f2cab049677a7509691f2ce41b52131e188dd81d6dcd36b55cf7f
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a lure related to "Popeyes chicken ingredients" which redirects to a suspicious URL. ML classifiers and ClamAV detections strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to exploit user curiosity to lead them to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffnew.ru/strik?keyword=what+ingredients+are+in+popeyes+chicken PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4373987/normal_5f8ac38f6ebe4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370072/normal_5f89563d5c134.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378425/normal_5f914c11da696.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367903/normal_5f9c884112b0e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392661/normal_5f8eeba5ca0bd.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/subud/organs_of_speech_diagram.pdfIn PDF document text
    • https://s3.amazonaws.com/desenaz/sceptre_32_inch_tv_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfb72c2e-f279-4537-868d-473a3bf38105/xopetateduwevudosuvu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e608c0fb-18ab-49ca-ba3a-182f99b53cbe/wewuwemilobutezimogis.pdfIn PDF document text
    • https://s3.amazonaws.com/dejolavubukugeb/bihari_ke_dohe_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a6720f1-9ab7-4704-b7da-4c5103076de8/10172408571.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85e6a008-b5d5-4fa1-82fc-cb434104aaa8/stargirl_chapter_11_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93c05308-6628-4fee-b7bd-b7217fdb420d/folexizapumidopo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f612f8c3-9f72-42d0-8091-49dc529df255/69105929063.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_off0000d8fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8FE 5484 bytes
SHA-256: 767fc25bb524a8485179ad8304b147afd1998c93cb052d150a81708b172eef62
font_01_sfnt_off0000ebb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBB7 10456 bytes
SHA-256: fdbd8e5977e1682980b146f7b5cfc3c3b8105e7b94e9fd23c706848d96719ee2

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