Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7e9302831674cc3…

MALICIOUS

PDF

73.2 KB Created: 2021-02-21 03:29:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 950f4479c4002cffb3b7984a93e7ed71 SHA-1: 15cc21a2a96f6ccfcbc2eb44f811098c23de9bbc SHA-256: b7e9302831674cc38a84c299df4eb3c146d45e0db50f545971ed1f531d38ea09
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wix?keyword=words+that+begin+with+he PDF link annotation
    • http://smeshnoykir.space/xowomonifoa6px9.pdfIn PDF document text
    • https://xefagopabori.weebly.com/uploads/1/3/1/3/131379938/gaxigosugawalan.pdfIn PDF document text
    • http://nuvuxek.iblogger.org/93237402780.pdfIn PDF document text
    • http://lerawutevokaj.iblogger.org/5713890443.pdfIn PDF document text
    • http://reduslimitalia.website/29221386989gev1z.pdfIn PDF document text
    • https://kaperimivegorew.weebly.com/uploads/1/3/4/3/134371305/6833214.pdfIn PDF document text
    • https://tamilavijunaw.weebly.com/uploads/1/3/4/5/134506647/norivo_pubifubufira_wipisusaw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391611/normal_5ff81f0337245.pdfIn PDF document text
    • http://coolstudent.space/wiwotubezezadegekagufrift.pdfIn PDF document text
    • http://naturebiolog.fun/3345234010885v5g.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476596/normal_6009a98dcc8a2.pdfIn PDF document text
    • http://kernig.online/browsermob_proxy_certificate_androidz92oo.pdfIn PDF document text
    • http://differencecheats.net/leluxokipejepedokagivk9ylk.pdfIn PDF document text
    • https://wenabavur.weebly.com/uploads/1/3/1/3/131379405/d85903d7503.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492250/normal_5fc5723bd1502.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vuvinumebipoje.rf.gd/tubovazodulerogonoxafiboz.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_off0000e27a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE27A 5300 bytes
SHA-256: 1233d379335bf61ff2ea186074c1d627fe488a8643b93d8cce3c65760e9749a3
font_01_sfnt_off0000f48d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF48D 10472 bytes
SHA-256: 3438707294be8b5a86313d4a908ca7d3d0a7a3e1d01ef4f121b2578b9a9fa93f