Malicious PDF — malware analysis report

Static analysis result for SHA-256 412b02a3617dbc83…

MALICIOUS

PDF

71.0 KB Created: 2021-03-18 19:55:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 5d6b97b0677d7ba4f097c864fd752b61 SHA-1: 536023bd6704520565d84483e35bd4c24ec4ac1c SHA-256: 412b02a3617dbc8373ffca9c87fc47eee890c51fdac72d955aabc13e3066c278
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 0.9998

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://kuzutuzo.ru/strik?utm_term=2010+lexus+rx+350+value PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4465705/normal_5ff87ff094584.pdfIn PDF document text
    • https://cdn.sqhk.co/kukisigafumi/jfgdYje/64493370498.pdfIn PDF document text
    • http://servempieza.site/mosadurigku8nw.pdfIn PDF document text
    • http://ita-talia.fun/lisefilogijavibufonavegp3x9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374983/normal_602a7b5c43dd7.pdfIn PDF document text
    • https://cdn.sqhk.co/zenegiwowi/gF9gdhg/como_conseguir_diamantes_no_free_fire_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/kafufojugure/hjicigV/kezepidiwokijatik.pdfIn PDF document text
    • https://cdn.sqhk.co/vinasujitupe/xLibqSV/20837558984.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421336/normal_5fe30b84af807.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403561/normal_6004b8661751e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476593/normal_5ff7c9c6cffaf.pdfIn PDF document text
    • https://cdn.sqhk.co/juxerawabuf/jgfyjav/wire_soap_cutter_amazon.pdfIn PDF document text
    • https://cdn.sqhk.co/zebapomiz/f4lkhjD/68857694018.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/marimejerebo/news_world_report_law_school_rankings.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/zavipatiferazuzametiwi.pdfIn PDF document text
    • https://s3.amazonaws.com/gujutavevive/baofeng_bf-_888s_plus_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/practice_math_worksheets_for_4th_grade.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_off0000d6f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6F2 5328 bytes
SHA-256: 05cd3459ad8d53fbfbd471854a58363edcb02654b0a58a3bef9117ea43635b71
font_01_sfnt_off0000e927.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE927 11172 bytes
SHA-256: a60ac93ba0450de0df3205a313a2c8ec0dfe847ac55d5cbf6f21fb5367d66799