Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d881e42c1f031aa…

MALICIOUS

PDF

75.9 KB Created: 2021-02-20 13:13:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 171a652546284c27e36bedaa4679bc66 SHA-1: c652c5367e18dcd85d65cd45dcb302718ff90471 SHA-256: 0d881e42c1f031aab023e36a4d340c6dc1db3d12a07d904dc8e73037f86a63fa
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'jacksth.ru' suggests an attempt to redirect the user to a potentially harmful website. Although no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a phishing or malware distribution lure.

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://jacksth.ru/wix?keyword=jhon+alex+casta%25C3%25B1o+de+donde+es PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4484156/normal_5fe0ef2f0c778.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374847/normal_601f3fa98143e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476601/normal_5fdc6edbd2050.pdfIn PDF document text
    • http://forexgeeks.net/ted_bundy_movie1qg33.pdfIn PDF document text
    • https://cdn.sqhk.co/fusifanux/jG0ghab/6634181861.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491686/normal_5fe41ee75d4e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457592/normal_602ddbbaeb92e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424683/normal_602043dec493a.pdfIn PDF document text
    • http://olipaka.xyz/the_chronicles_of_narnia_3_full_movie_in_telugublegp.pdfIn PDF document text
    • https://cdn.sqhk.co/bipadifudame/hb6hfF0/60467984540.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448341/normal_5fedd0bc5d0cd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401691/normal_5fcc2a542808a.pdfIn PDF document text
    • https://cdn.sqhk.co/zufutetuwume/bhg9Rjg/26677172597.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379964/normal_5fe06d4e2ac75.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379718/normal_5fc63af9eeb0d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365576/normal_5fd1eef859c59.pdfIn PDF document text
    • https://cdn.sqhk.co/dejijadu/TQl9ie4/dutudibeloxesibero.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383300/normal_5fd902ec962c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403271/normal_600fd96003897.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460694/normal_5fd30c03cfdbf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417669/normal_5fc7f156269cc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e963.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE963 5200 bytes
SHA-256: 50d6f14be6b99451d2965f959be01e31228af3617450bd1345e934bb1e3e1fcb
font_01_sfnt_off0000face.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFACE 11504 bytes
SHA-256: 19783ac5d7f3c6576b87ce54f1a21483317543fe9037a83baec2a21558821865

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