Malicious PDF — malware analysis report

Static analysis result for SHA-256 df665ce4e1836be0…

MALICIOUS

PDF

71.9 KB Created: 2021-02-16 06:12:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 07468f0cc8ff838cde0db9bf0c9b22a6 SHA-1: 11d286f62ef9557c147d075603adbc6e5652d05b SHA-256: df665ce4e1836be007d9c574700a49e2231a3a690cc646852b5d9dfd01a09a80
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://baarspo.ru/wix?keyword=dolby+atmos+apk+download+free PDF link annotation
    • http://tublitalia.space/24045860334dozv1.pdfIn PDF document text
    • https://cdn.sqhk.co/velomegu/fgdNfii/nidogozuwirofumu.pdfIn PDF document text
    • http://rewita.fun/8494396490s87sj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466675/normal_5fd1d93221823.pdfIn PDF document text
    • http://rezltml.xyz/vevamet9lflp.pdfIn PDF document text
    • http://dom-bita.org/5nvpc.pdfIn PDF document text
    • http://godulonu.22web.org/dard_bhari_shayari_video_mp4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377098/normal_60135b0c80c6c.pdfIn PDF document text
    • http://eyebrowthreadingdallastx.com/nuvolixeluxe3cj5a.pdfIn PDF document text
    • https://vopupina.weebly.com/uploads/1/3/1/0/131070761/66e9082ad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381294/normal_60048a9392d9e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ginimadurajikaf.rf.gd/jenujaduvepavipi.pdfIn PDF document text
    • http://ribizotujigotok.rf.gd/zusebivunedonaba.pdfIn PDF document text
    • http://misugivunuzu.epizy.com/descargar_commandos_2_para_android.pdfIn PDF document text
    • http://faxiwig.epizy.com/monthly_petty_cash_report_template.pdfIn PDF document text
    • http://datidogebe.epizy.com/37646366910.pdfIn PDF document text
    • http://jawikaginixuxuz.rf.gd/6781395351.pdfIn PDF document text
    • http://rexenejo.epizy.com/flagstaff_ski_snow_report.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_off0000da54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA54 5584 bytes
SHA-256: cdbfcbd83b697a8d53328fa3e151bb3b89a92fdd6f6e943d145e10cfc1c0f2d3
font_01_sfnt_off0000ed52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED52 11488 bytes
SHA-256: 0fedce5afeb9f7ed1449ea8cbbb5b7c7169fd789cac1e9f4ae3d4a5406f7bd37