Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cce8e154268c26a…

MALICIOUS

PDF

71.8 KB Created: 2021-02-08 08:23:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 70f0ae8db115b14a00a0dee28557523b SHA-1: ec01ebf3c4de281a769a16ea1d474ec781caef3b SHA-256: 6cce8e154268c26ad0bf489301d4344ab1d709ca8c02447a491a653a0f39ee97
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the ClamAV detection suggest this PDF is designed to exploit users through social engineering, potentially leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wb?keyword=project%20report%20on%20drowsy%20driver%20detection%20system PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4419437/normal_5ff574ae4f516.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446914/normal_5fc6bcbac3156.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406208/normal_6006ebaf716d8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466996/normal_5fe4baa72de4e.pdfIn PDF document text
    • https://cdn.sqhk.co/mozopojugode/ajeKOih/94583856701.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445866/normal_5fe7ec6358c06.pdfIn PDF document text
    • http://kameregeperiwaz.22web.org/gakivebulopuraz.pdfIn PDF document text
    • https://cdn.sqhk.co/kerutadit/iihfZjh/86106438453.pdfIn PDF document text
    • https://cdn.sqhk.co/bidamasegom/YRsVEig/10128326499.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487894/normal_5fde55106abaf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371247/normal_5fca04635081c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408323/normal_5fdc9d86633b9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404515/normal_6006271faa410.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375351/normal_5fcf325d1416f.pdfIn PDF document text
    • https://cdn.sqhk.co/jofijoju/eip1zI9/super_dancer_chapter_3_winner_rupsa_dance_performance.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387036/normal_60107fcb63319.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://towupew.epizy.com/54829991362.pdfIn PDF document text
    • http://rimejaje.epizy.com/free_printable_5th_grade_writing_worksheets.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cdce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDCE 5096 bytes
SHA-256: 82f7ebe01bee1663b1c0b4cf760b0d8a9b77c7d36759de25efb7a5d5997bb354
font_01_sfnt_off0000df27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF27 10788 bytes
SHA-256: 2331528b826ae0409ed15a44e15c96619b88de6d0b9d84471cdcf0233c9ad372
font_02_sfnt_off000103ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103AD 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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