Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7d298cf5de9982d…

MALICIOUS

PDF

71.0 KB Created: 2021-02-28 21:39:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 207bf76e05e8e25f610d3c037b61c953 SHA-1: bcb7adf9f49325d5b32177d3f166a556fc335a3e SHA-256: a7d298cf5de9982d478769266ace99828cde8458f1d469ec6fe35993ea2e38a2
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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/wix?keyword=waltz+music+list PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4420454/normal_5fd9945b7e899.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386594/normal_5fca5a564a707.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455403/normal_6036051b76823.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465694/normal_5fd85c1dac845.pdfIn PDF document text
    • http://dodemawaj.iblogger.org/52_week_calendar_template_2018.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455902/normal_601bfce15841a.pdfIn PDF document text
    • http://gujavagidaxo.iblogger.org/62473366609.pdfIn PDF document text
    • http://ragesedanem.iblogger.org/como_ser_policia_judiciaria.pdfIn PDF document text
    • http://momarivido.mypressonline.com/23690126303.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404490/normal_5ff8b3968caa1.pdfIn PDF document text
    • https://cdn.sqhk.co/dikapagoloza/yhfhjYE/lirojujajukijomezaxuwilaw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ximolamerojizud.epizy.com/68529353661.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_off0000da42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA42 4912 bytes
SHA-256: ed9e7517322e6ebfc2eef4a2c7a570e14b88a0d4657a30b22bf6d9e625eb2159
font_01_sfnt_off0000eaff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAFF 10804 bytes
SHA-256: c11bb0ecd1291628172b1fe6a30874b2593e13fb88374ba8693cd764526e0770