Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e5b5c737dcf1a75…

MALICIOUS

PDF

77.2 KB Created: 2021-02-28 02:47:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 157df9d4dd5c1223fdc91a5cfb3795cf SHA-1: 490cd2d53020bce517b33e848c1c24395ff296da SHA-256: 1e5b5c737dcf1a756355f7683f00ef5e85ea701063183a41658a156b2148aaa8
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a phishing page. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://nipisod.ru/aws?utm_term=how+to+choose+graphics+card+windows+10 PDF link annotation
    • https://cdn.sqhk.co/nutewakizi/d2ptBJG/rizawunovakegu.pdfIn PDF document text
    • http://aromaita.space/sainsburys_lasagne_sheets_butternut_squash8zshg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488323/normal_5fec4811a5c98.pdfIn PDF document text
    • http://kleomaften.online/94191954110jjtax.pdfIn PDF document text
    • http://smcjd.com/mejor_antivirus_para_android_sin_anunciosgbgqn.pdfIn PDF document text
    • http://sochi2026.com/bapodo6q07q.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391634/normal_6033ff9e68d28.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477877/normal_600bcf098e788.pdfIn PDF document text
    • https://cdn.sqhk.co/kovixileta/VCzzicT/wibijagulaki.pdfIn PDF document text
    • https://cdn.sqhk.co/wozepefiga/gdcje1D/yellowstone_season_4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450884/normal_5febcd99de6ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368485/normal_601c7aaf35ae7.pdfIn PDF document text
    • https://cdn.sqhk.co/kibutonap/iji49gi/zagumovepozowemeke.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418399/normal_5fd0bd7568212.pdfIn PDF document text
    • https://cdn.sqhk.co/xezafube/hcry7QF/beat_the_boss_1_apk_download_mod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413345/normal_60272e1d0a55c.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_off0000efd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFD3 5548 bytes
SHA-256: f4ab57a577e849976de04bbbe4115d23332f42ace23d61855a2e1d0fece4e128
font_01_sfnt_off000102c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102C2 10792 bytes
SHA-256: 9bbf97890f48037ad4f7b86c7ff450d6b5ba64892257ce0833f49c4e51a3cf6a