Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d25f647ea136257…

MALICIOUS

PDF

70.7 KB Created: 2021-02-14 02:45:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: b5022e090446f0e354c8cf8e2e5b2a12 SHA-1: 3d7a015403d2c0dfaaa2356de224d04f281bba60 SHA-256: 4d25f647ea136257ae5b60cee7c9dd9492b1a199729ffd5c108daf8f8d3c23a6
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://maypoin.ru/wix?keyword=couples+line+dance+to+neon+moon PDF link annotation
    • https://lugukeku.weebly.com/uploads/1/3/1/4/131407734/94e5b67b6.pdfIn PDF document text
    • http://wirelessinfo.ru/jajukesefonos0hyc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383304/normal_600c688f12571.pdfIn PDF document text
    • http://triple-doska5.club/free_communication_skills_training_materialp6whf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366048/normal_5ff86f039e5ee.pdfIn PDF document text
    • http://marafonsport.site/13343686039fczul.pdfIn PDF document text
    • https://fejilezujew.weebly.com/uploads/1/3/4/3/134340931/60ab6e183e.pdfIn PDF document text
    • https://rovibabewovel.weebly.com/uploads/1/3/4/8/134884015/logofotug_gepiros_jimaletuzox.pdfIn PDF document text
    • http://b0xberry.online/965579543489dihd.pdfIn PDF document text
    • https://matexofetuboso.weebly.com/uploads/1/3/1/4/131453592/pupul_mutejuw_zizujalunogobu_nipigimagod.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416500/normal_5ffcdef2d4b6f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380545/normal_6003b4506f8ea.pdfIn PDF document text
    • https://wefizaxire.weebly.com/uploads/1/3/0/9/130969527/1e3b7586.pdfIn PDF document text
    • http://masterpowerpoint.com/fobijafokofomufowez6swq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410727/normal_6006bde845f06.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/bevekizadoxuj/19786985392.pdfIn PDF document text
    • https://s3.amazonaws.com/kiwopusafize/garnet_hill_sheets_on_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/jimugivos/zaxedatusofaluwene.pdfIn PDF document text
    • https://s3.amazonaws.com/leributafa/fozemikobuw.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_off0000da73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA73 5028 bytes
SHA-256: 19831a4d3a6b0db09986a7068991e4b8f18bcd069dc23229fa610380efb0ccbe
font_01_sfnt_off0000eb76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB76 10024 bytes
SHA-256: ff87aa2154245ffa8ccffa87c8542eac20f0f92ca4842ce3417a8be02bda5e5c

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