Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1b470a89da06b7b…

MALICIOUS

PDF

73.2 KB Created: 2021-02-25 01:31:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 39f64aee34f03a1710c5c0476b358213 SHA-1: 43ee3786ea1b965be80c4666401ddb4364864f44 SHA-256: d1b470a89da06b7b5da8cee6413393eb277c3840096740ff0258cf4eb5a9e2f7
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=hopper+reset+button PDF link annotation
    • http://deluwotitawugo.iblogger.org/wirubunoxalenukelizunij.pdfIn PDF document text
    • http://figimumagoko.mygamesonline.org/72400232838.pdfIn PDF document text
    • http://beririka.scienceontheweb.net/72047475188.pdfIn PDF document text
    • http://vitofemegawe.getenjoyment.net/jisukuxobewazavalovoju.pdfIn PDF document text
    • http://gomededow.22web.org/wufegakazowibemomaduvufut.pdfIn PDF document text
    • https://zatuduxe.weebly.com/uploads/1/3/4/5/134595584/garufewibatujif.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutazomaga/hdjdRjV/lusixesime.pdfIn PDF document text
    • http://rilomenininun.getenjoyment.net/acer_aspire_e5-571_specifications.pdfIn PDF document text
    • http://rolapisi.scienceontheweb.net/que_es_la_madurez_espiritual_catholic.net.pdfIn PDF document text
    • http://wivuperafuzo.mypressonline.com/95890131775.pdfIn PDF document text
    • http://worelimupuvefam.mywebcommunity.org/14305029612.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://godutiliwaganos.rf.gd/how_to_eclipse_for_selenium_webdriver.pdfIn PDF document text
    • http://bumurulepowele.myartsonline.com/75688700724.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_off0000e328.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE328 4672 bytes
SHA-256: 6729e585ccc9b2fabf43ca81dc33368fc4b6b7f788ca347a3903937208cb77be
font_01_sfnt_off0000f312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF312 10796 bytes
SHA-256: d636f899b03be5cf3a4d9842909fffeae01ac346f342268a555ea4ca8491eb92