Malicious PDF — malware analysis report

Static analysis result for SHA-256 beb8f241838568ec…

MALICIOUS

PDF

84.7 KB Created: 2021-03-02 01:53:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 490989cddf0ed8785aad20e5831e4a29 SHA-1: 5c36bb143d7d252c5e5e64d0cbb51bcfa17d9175 SHA-256: beb8f241838568ec78fb76d7a7996368d4606670e87c958e0cc79866d55e6729
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://soxebez.ru/123?utm_term=nlp+presentation+skills+pdf PDF link annotation
    • http://pijirikuzi.iblogger.org/59691355844.pdfIn PDF document text
    • https://mufajagirudul.weebly.com/uploads/1/3/1/4/131452858/xudamojulave.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383444/normal_5ff3b56a90d3d.pdfIn PDF document text
    • https://bazunebusa.weebly.com/uploads/1/3/5/3/135397504/zefejukuwipobepadux.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420037/normal_60121d1be85e4.pdfIn PDF document text
    • https://tekemuwuva.weebly.com/uploads/1/3/0/7/130775778/setotekomuz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418583/normal_60163c62993d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494147/normal_60167db14149c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393488/normal_5fddb3c2158f2.pdfIn PDF document text
    • http://lufoveferezudu.22web.org/arabian_sea_cyclone_forming.pdfIn PDF document text
    • http://teaitalis.space/xafoduzizakusogobosojerhuxqh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481411/normal_5fefb575acaec.pdfIn PDF document text
    • https://lilonukile.weebly.com/uploads/1/3/4/7/134767916/zalajito_fewopumaziviw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vusukunuvedigup.epizy.com/sounds_pronunciation_app_pro_apk.pdfIn PDF document text
    • http://kovoxajinuf.epizy.com/constitutional_amendments_1-_27.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_off00010db1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DB1 5068 bytes
SHA-256: 3f45b5ca34b96bfbde1b069a17d22a6dc348b9b237e7ee43cd4cb9b237dd70c0
font_01_sfnt_off00011f01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F01 11520 bytes
SHA-256: 9060b579f1f7e3b5c8fc9190c6d0d7f8e9e81a63bd1e769f5973c9a92009774e