Malicious PDF — malware analysis report

Static analysis result for SHA-256 293232f42c3624c3…

MALICIOUS

PDF

64.0 KB Created: 2021-02-20 12:10:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 365de65023f473c68b89050032841a94 SHA-1: b76af27601f527ab414e46accba31b4c60802366 SHA-256: 293232f42c3624c303efd61c6d0ca365c94b79c51c8133ef73550d59205d42a1
152 Risk Score

Malware Insights

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

The PDF file contains embedded links that redirect to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also flagged the document with high confidence. The document body, though partially obfuscated, contains a question that serves as a lure to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/123?utm_term=what+does+the+silent+salute+symbolize+in+the+hunger+games In PDF document text
    • https://static.s123-cdn-static.com/uploads/4455376/normal_6004faf038906.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450417/normal_602cef0cebc6d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450639/normal_6025602ce5a1b.pdfIn PDF document text
    • http://fit-italy.space/5688311024931i8y.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485454/normal_602088bb9b4b4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392854/normal_5ff80b2183e35.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4529780/normal_5fe97412f359b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472495/normal_5fcdfbe705006.pdfIn PDF document text
    • http://metalllift.ru/6958453547509lau.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426075/normal_601d12de9455a.pdfIn PDF document text
    • http://nout-prokat.website/stretch_out_strap_exerciseszrrmf.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/jikopot/enfold_create_custom_template.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/fotumorirenebidawig.pdfIn PDF document text
    • https://s3.amazonaws.com/bitajemisajoz/fikebemenulomumitaz.pdfIn PDF document text
    • https://s3.amazonaws.com/zepifudoxapo/can_chiggers_live_in_your_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/vizegemawokaxe/easy_aliexpress_image_er.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/kexakora.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/10682555244.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e4cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4CD 5544 bytes
SHA-256: 9d5e715c47ef1db2d00b7dda5660372b8d4c23b85a8fb0ea1563ca41a081a74f

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