Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4e1eda8a6241e0d…

MALICIOUS

PDF

73.2 KB Created: 2021-02-25 23:07:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: fad08b247a59e03b31a71ec988065e5a SHA-1: 2d76f3e56fbb493ced777b5b1a78f5c28e4a6fbb SHA-256: d4e1eda8a6241e0d7c1a5a2120d28d02e88b1db8064e68286874abc07e2c0ea1
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://bologen.ru/award?keyword=malibu+transformer+replacement+parts PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4416506/normal_6018dad708b8f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496812/normal_60217b163db05.pdfIn PDF document text
    • https://cdn.sqhk.co/serodozire/hjjxMAU/goldair_radiant_heater_outdoor.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451753/normal_5fe154ea5098c.pdfIn PDF document text
    • http://zomuregunaradu.iblogger.org/free_photoshop_actions_deviantart.pdfIn PDF document text
    • http://pitushok.space/10767832946ye9x2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408463/normal_5fed3e55a6877.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fokodema.epizy.com/79390394613.pdfIn PDF document text
    • http://fejewipup.rf.gd/27454596183.pdfIn PDF document text
    • http://pefogitoveni.epizy.com/32281409829.pdfIn PDF document text
    • http://vubelifijam.atwebpages.com/wikibiwiwoze.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_off0000e2e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E6 5304 bytes
SHA-256: cc82d90a026c9e9b61b1751f6d617eb47cb42378ed02319a13c8a717a4f99579
font_01_sfnt_off0000f4e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4E5 10216 bytes
SHA-256: 814713399d89bbc5735ca6ac5d50f489992df0fdfc6f880e49bda535cc1c9eef