Malicious PDF — malware analysis report

Static analysis result for SHA-256 60634891f977ea9c…

MALICIOUS

PDF

72.8 KB Created: 2021-03-18 09:54:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 130087ec4f11db1c8700f1f7cd47f061 SHA-1: 90dd16c2d0cffd5f301e16a68f349f02c74c6a0c SHA-256: 60634891f977ea9c5901ececd76066a6d65ddbfb3ef75e6bb8f067ef0abadcf7
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 0.9996

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://mezovuduw.ru/strik?utm_term=yamaha+704+remote+control+installation PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4452374/normal_5ff80a60ddee5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416790/normal_5fc7e9bd25374.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482869/normal_5ff7beaa00ed9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462046/normal_5fd64506746d2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454286/normal_5fed99683b477.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369165/normal_5fe25c19adf72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372740/normal_600e2742606c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412415/normal_604ec1840651f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370064/normal_5fdfb447d9f5c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486772/normal_5fee3a49ba2ff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496826/normal_6008653cb2c00.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416322/normal_5ff17c3fbd586.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417818/normal_5ff21c3938d17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486765/normal_5fe911876e2b7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369788/normal_5ffa27f751cf9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423189/normal_5fd9976558d8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413469/normal_5fd12a1a83bf9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443371/normal_6026d024a463f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368763/normal_601708b0c0c1f.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/xupimaral/tanawijufab.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/merchant_navy_training_institute_in_kerala.pdfIn PDF document text
    • https://s3.amazonaws.com/mutirexa/ashes_cricket_xbox_one.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_off0000e0d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D1 5312 bytes
SHA-256: 79117bfe3f16a239b27679dfa0330cd6edc51d0abf534954f1be9931b17db9f8
font_01_sfnt_off0000f2bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BF 10300 bytes
SHA-256: 863d716453c5ce5d1581c49f6e0727ba0440a3eb0684fe477be4bc347709b44c

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