Malicious PDF — malware analysis report

Static analysis result for SHA-256 b48efaa24ed94747…

MALICIOUS

PDF

76.1 KB Created: 2021-02-14 22:57:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e809c340ccc97ad4b5a2807624e89c22 SHA-1: 18fed22ff0869311d8bd59af1136ff7b98c50ffa SHA-256: b48efaa24ed947478fd8a5cdf4ace746c16ad0a650da1d526bbc8c798f1bef28
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/123?utm_term=god+in+pain+asscherick PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4391903/normal_6020191c6acf3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381740/normal_600fdd2538ce3.pdfIn PDF document text
    • http://firstdoctor.xyz/ikea_kitchen_cabinets_doorsy26wj.pdfIn PDF document text
    • https://lubefapezixa.weebly.com/uploads/1/3/1/3/131398117/1639208.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476445/normal_5ffb4b9d3880a.pdfIn PDF document text
    • https://dolevomebebozap.weebly.com/uploads/1/3/1/6/131636651/a948ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393900/normal_601dcee42d142.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421970/normal_5fd9c1581c37b.pdfIn PDF document text
    • http://my-favshopg.online/mustang_gt_5.0_auto_vs_manualv3qk0.pdfIn PDF document text
    • http://baranaydin.org/bubblefish_menu_morgantownbnxzg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375342/normal_5ff32e291a52b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377662/normal_5fcb3856e0181.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393624/normal_5fcdb0126696a.pdfIn PDF document text
    • https://wizawexixif.weebly.com/uploads/1/3/4/4/134472694/8ac3ac4f3b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/57474830397.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_off0000ed51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED51 5224 bytes
SHA-256: 175793839d386d35f5d89bb93de33d0386aeaa892624b2f9e89db1ec1c176e7d
font_01_sfnt_off0000ff0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF0D 10712 bytes
SHA-256: 1c7bcc81a861c0771e85900ff1bad87a4cd3601eaf901f031f104721481dd9cd