Malicious PDF — malware analysis report

Static analysis result for SHA-256 b18f603b6500e498…

MALICIOUS

PDF

87.2 KB Created: 2021-03-02 15:13:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 599d2710215d7719c7fba201940f1569 SHA-1: 03b2b459cd089a17d7e3a5cd570b5a7ef926dba4 SHA-256: b18f603b6500e49840da642c7c91ea0b9f2677a25e665e7d3545cb308bb32d46
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://nipisod.ru/123?utm_term=how+to+reset+hp+ink+cartridge+680 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403938/normal_603dd0b36ee2e.pdfIn PDF document text
    • https://vetaguluxidi.weebly.com/uploads/1/3/4/6/134656260/1839529.pdfIn PDF document text
    • https://lepamume.weebly.com/uploads/1/3/4/8/134882258/b6a073cd.pdfIn PDF document text
    • https://paporese.weebly.com/uploads/1/3/1/0/131071113/bufifagizovuwuma.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421788/normal_6029afecf3142.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463812/normal_5fcc02a2f255b.pdfIn PDF document text
    • https://virefogagivagu.weebly.com/uploads/1/3/0/8/130815228/kememo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467975/normal_601437663a661.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499329/normal_5fd9be501f7a3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393904/normal_600476d6ab5d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470402/normal_601f2469b0f9f.pdfIn PDF document text
    • https://zuvofuguwapu.weebly.com/uploads/1/3/4/0/134042474/xavazonatav.pdfIn PDF document text
    • https://cdn.sqhk.co/gasosivifug/Zmhgidn/guzimele.pdfIn PDF document text
    • http://mabojexovepa.22web.org/1927875766.pdfIn PDF document text
    • https://relotevifinedu.weebly.com/uploads/1/3/2/6/132683264/5d54d34cb4593.pdfIn PDF document text
    • https://sarutofujatazix.weebly.com/uploads/1/3/4/5/134584212/jibijidoti-zedamokijuneto.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://runesufosufej.rf.gd/82661458507.pdfIn PDF document text
    • http://lenaxepejo.rf.gd/4456017066.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000115c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115C2 5908 bytes
SHA-256: 7858f475109d10d435361c75f71ea1cf137f280b86bd71d782d5309db7dc2a45
font_01_sfnt_off000129e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129E5 11044 bytes
SHA-256: 6e7ec4360dd1aac4eb8a3464e97c89fc32067053bc9920cd0f746e781e2b1f87

Open this report in the interactive analyzer, or submit your own file for analysis.