Malicious PDF — malware analysis report

Static analysis result for SHA-256 f646e875dcea8417…

MALICIOUS

PDF

79.9 KB Created: 2021-02-24 04:19:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: cd3ae1d5230abe1d6fa2510392b88918 SHA-1: d1e494038c1009d2b48635ca2ea1e298ac2cdf95 SHA-256: f646e875dcea8417930b1e83caaa2cf669a3d8f654c77b5e9e783350f2f20bcf
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a phishing site. The ML classifier and ClamAV detection strongly indicate maliciousness, specifically phishing and trojan activity. The document body, though heavily obfuscated, appears to reference a Tesla promotion, likely a lure to encourage clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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://crophysi.ru/strik?utm_term=tesla+model+3+performance+price+reduction PDF link annotation
    • https://cdn.sqhk.co/nalawanuxa/3r3XYbD/skyblock_minecraft_1._16._3_server.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404490/normal_5fe5d1808649f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369323/normal_5fdd36107ef8c.pdfIn PDF document text
    • http://fb-ig-copyright.com/vizupikopoxopamimu0wgqr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417030/normal_60053a15da64b.pdfIn PDF document text
    • https://wikifepum.weebly.com/uploads/1/3/3/9/133986434/vixafo.pdfIn PDF document text
    • https://cdn.sqhk.co/susojareb/94hhggR/magic_rampage_chapter_5_dungeon_1.pdfIn PDF document text
    • https://xutezanepone.weebly.com/uploads/1/3/3/9/133999331/betotonopezupan-pojuvibogawes-pewud-dokuwijufenizak.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://palomidifigur.epizy.com/brushing_your_teeth_worksheets_elementary.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_off0000fd31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD31 5416 bytes
SHA-256: aed1a4c5c11db80ef7bbfd1dc8c5dc3de5deb3e91a2d44c8faeb3b95c165c15e
font_01_sfnt_off00010f83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F83 10464 bytes
SHA-256: e7b44884735d31905d41186c995102689bbf9643baa8bcf94e5f689cb2e8711a

Open this report in the interactive analyzer, or submit your own file for analysis.