Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5411509c95ecf58…

MALICIOUS

PDF

69.2 KB Created: 2021-01-04 11:21:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 4b14963e7a11cf7da0f16bc4f9726aef SHA-1: 0966be78f8feb21edac94ca7466256e6ce9a425f SHA-256: d5411509c95ecf58416f5791da365fb1e04c37e79781ac4defaeb551801e7d69
96 Risk Score

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 0.9997

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://traffine.ru/aws?utm_term=free+word+templates+christmas+borders PDF link annotation
    • https://gotugutulado.weebly.com/uploads/1/3/4/6/134648793/618fd.pdfIn PDF document text
    • https://nitevugumosu.weebly.com/uploads/1/3/4/5/134526644/4038568.pdfIn PDF document text
    • https://gunobome.weebly.com/uploads/1/3/1/3/131398345/nukotaxej_bajixufovogu_ximijajovifefo.pdfIn PDF document text
    • https://verorepu.weebly.com/uploads/1/3/4/7/134774070/6057565.pdfIn PDF document text
    • https://cdn.sqhk.co/wefopijupe/giiYjar/30226149744.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/sesijesule/72328398170.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb8a8a17-9263-42a2-ac76-06aff01a4174/48557059353.pdfIn PDF document text
    • https://s3.amazonaws.com/feseni/spider_man_4k_wallpaper_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/kovilowab/11444021283.pdfIn PDF document text
    • https://s3.amazonaws.com/dafalebinoza/pawerujowoj.pdfIn PDF document text
    • https://s3.amazonaws.com/rijaliwiguvex/punawe.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/fgckx_stock_quote.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_off0000d3b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3B3 5500 bytes
SHA-256: f2307a120bcc8a1995363639f93635ce33fa883d1b72898b97328e823253bd01
font_01_sfnt_off0000e644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE644 9940 bytes
SHA-256: a33f6c581ed3fa7fde1b12d73669d3c1fa5392a2946cfe6762a93440ca24acad