Malicious PDF — malware analysis report

Static analysis result for SHA-256 1416d3ff5a0ed6e3…

MALICIOUS

PDF

73.1 KB Created: 2021-02-15 03:32:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2605576ccc25ab009cd28abeed139158 SHA-1: b9c09cfc630c6585d8d4cf57411fa5da02e234b1 SHA-256: 1416d3ff5a0ed6e388b676c7f74031d3818b2c80ff7ced6e0adcf7067849b1d8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wix?keyword=metric+conversion+chart+grams PDF link annotation
    • http://mynasert.online/university_of_montana_westerni5qat.pdfIn PDF document text
    • https://cdn.sqhk.co/jotepomi/kH2jiKG/64210094040.pdfIn PDF document text
    • https://xonaxeritugu.weebly.com/uploads/1/3/0/7/130739926/c43ef75f83.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495050/normal_5ff2b55cab3cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384463/normal_5fe861ce96fda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493550/normal_60187d5f49dc5.pdfIn PDF document text
    • http://help-service-support.com/64515921966z07p.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448549/normal_5fed9662e7d95.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385631/normal_5fcea8d8955a3.pdfIn PDF document text
    • https://nawexolaka.weebly.com/uploads/1/3/4/7/134704757/aa07bb1c66b.pdfIn PDF document text
    • https://cdn.sqhk.co/tisufupujeli/himOuif/funny_guy_halloween_costumes_diy.pdfIn PDF document text
    • http://italysummer.space/tozuzerisiweginodorunxbyc.pdfIn PDF document text
    • https://nogetutiru.weebly.com/uploads/1/3/4/7/134711470/0b48b.pdfIn PDF document text
    • https://nawodovifuvobix.weebly.com/uploads/1/3/0/9/130969758/zibimemib.pdfIn PDF document text
    • https://vugifalufaduzo.weebly.com/uploads/1/3/4/8/134889855/3cc3b2af5.pdfIn PDF document text
    • https://temazojirilezin.weebly.com/uploads/1/3/2/3/132302863/muwilekowogedaf-gomamiwav-tesitilotovu.pdfIn PDF document text
    • https://wonozonozosog.weebly.com/uploads/1/3/1/3/131398184/0187f75.pdfIn PDF document text
    • http://blue-tick-central.com/96488937877m1wo8.pdfIn PDF document text
    • https://xenewonunawof.weebly.com/uploads/1/3/2/7/132740417/bafuka.pdfIn PDF document text
    • https://goponubinolofuv.weebly.com/uploads/1/3/4/6/134695307/lajatapasur.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386349/normal_5fea067fdac27.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371806/normal_5fdd23c8cf0ee.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE167 5248 bytes
SHA-256: 350d944eac2538ca83ae1496e83d3b02fc3e32b41a0354ca24227072e33c1a52
font_01_sfnt_off0000f329.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF329 10352 bytes
SHA-256: c3827adfcd0588ea04682cd7be333075dc0ab696a9104a3618408888a4188e55

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