Malicious PDF — malware analysis report

Static analysis result for SHA-256 62738e4b1e6c3a10…

MALICIOUS

PDF

339.6 KB Created: 2020-12-22 20:01:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 036404d8a06d175a5ba33531e5b4e6b9 SHA-1: 59510bf37acbcd55e131d1a55dd7d0f1b8db71b6 SHA-256: 62738e4b1e6c3a102630388a6de61f60f71fcc2b0c7982d7a03166f2f59504f7
152 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 link to a known malicious redirector, which is a common tactic for phishing and malware distribution. The embedded URL `https://gettraff.ru/aws?utm_term=doraemon+cartoon+new+episode++mp4` is disguised as a download for a cartoon episode, aiming to trick users into clicking. ClamAV detection and ML classification further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9473

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://gettraff.ru/aws?utm_term=doraemon+cartoon+new+episode++mp4 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4427501/normal_5fa72b115cff7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417426/normal_5f988a3c6cdfa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370080/normal_5f886790196eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366022/normal_5f87200871a37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443824/normal_5fbbbbfae5f85.pdfIn PDF document text
    • https://gewupokisata.weebly.com/uploads/1/3/4/6/134606569/piremolotilima.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478932/normal_5fcb5f8d17f37.pdfIn PDF document text
    • https://tureduritisamo.weebly.com/uploads/1/3/4/6/134676104/99d0237e7e.pdfIn PDF document text
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/rililesoninitivev.pdfIn PDF document text
    • https://dunidapakepew.weebly.com/uploads/1/3/4/3/134319263/5f4ca5f27.pdfIn PDF document text
    • https://fusajebotiv.weebly.com/uploads/1/3/4/3/134320253/7418871.pdfIn PDF document text
    • https://malotote.weebly.com/uploads/1/3/4/8/134872882/712068.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/wiwamoxamo/algebraic_expressions_problems_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/48289650234.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aae473a0-2673-4938-937d-164b513cb60c/97863899152.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_off00052089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52089 5364 bytes
SHA-256: bfd5262a85dae686b263b569a038fa04192cf164f1ab40325b2bea85cac64d39

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