Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d26f8c4ea3383c0…

MALICIOUS

PDF

79.3 KB Created: 2021-03-03 15:44:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 1882924834d3fee9e010145978cb1e3c SHA-1: e41ab0bdd12717619dc9b5b4aaf808c47f8574ae SHA-256: 1d26f8c4ea3383c069052fddc2ea24795c4b5172276f14e5f68afe9858bffbbf
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://gimoguvi.ru/123?utm_term=how+to+deal+with+daily+life+stressors PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4402032/normal_6009ad3c67714.pdfIn PDF document text
    • http://pozijuza.scienceontheweb.net/85826178046.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415308/normal_60109747a5b76.pdfIn PDF document text
    • https://cdn.sqhk.co/zovigobut/hdJSgi5/24701863301.pdfIn PDF document text
    • http://fb-ig-copyright.com/wuxozowogo2vhvu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496374/normal_5ff834e18b23e.pdfIn PDF document text
    • http://setokanekema.mygamesonline.org/dedemomivanaximexorobukuz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485308/normal_5fee46b84745e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475861/normal_600eef427fbdc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pupagerirawax.myartsonline.com/hansel_and_gretel_bakery_barnwell_sc.pdfIn PDF document text
    • http://sokekakeloji.onlinewebshop.net/tonakejeruvuvewekegamidel.pdfIn PDF document text
    • http://wazeniwemir.onlinewebshop.net/how_to_use_bernat_blanket_ez_yarn.pdfIn PDF document text
    • https://s3.amazonaws.com/gazitif/adornos_navideos_2019_manualidades.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/zalekizake.pdfIn PDF document text
    • https://s3.amazonaws.com/genedesowul/rugenixuzug.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_off0000f9a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9A4 5148 bytes
SHA-256: 3a1b48408bce177d7e6533c4cace099ed9a1e25cda3f3adc636059622bac8f01
font_01_sfnt_off00010b38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B38 11092 bytes
SHA-256: 6ac6bb8e09a90dfd455f5fa7b17ef7022317484ce48605b4616b911f2b1d8daa