Malicious PDF — malware analysis report

Static analysis result for SHA-256 5be19946c45a5ebd…

MALICIOUS

PDF

80.5 KB Created: 2021-02-27 12:51:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f68d3d2a7422dfada117eecfbee762ce SHA-1: 2afe282d9ce5f02a04cb73d4cfd5a4f49e8934da SHA-256: 5be19946c45a5ebd623ba8aa687181f54a3089478907b37ea54c8ee59ea6e3ff
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=a+whole+new+world+pdf+easy In PDF document text
    • http://helpcreditscore.info/what_is_error_5100_on_the_canon_printerfer5f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381964/normal_5ffb85f4163b1.pdfIn PDF document text
    • http://totalcreditcheck.info/33805291474s8xop.pdfIn PDF document text
    • http://nukels.xyz/pet_store_near_walt_whitman_mallav7po.pdfIn PDF document text
    • http://dorightschool.com/como_hacer_aceites_esenciales_caseros_gratis3makt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366630/normal_5fccefcd694dd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479474/normal_5fe1faee44d10.pdfIn PDF document text
    • http://dkmz3.club/dogumalosebofowuxitimeka0dk1l.pdfIn PDF document text
    • http://fidofawi.medianewsonline.com/detatu.pdfIn PDF document text
    • http://memowelubi.mygamesonline.org/zasobuku.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380383/normal_5fd38bff6d3dc.pdfIn PDF document text
    • https://cdn.sqhk.co/zoburawava/1hbgjic/gagasenudejobiroxivoli.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372358/normal_601fd82cc1f32.pdfIn PDF document text
    • https://cdn.sqhk.co/jepivitixiwo/ajihche/fixud.pdfIn PDF document text
    • https://cdn.sqhk.co/jexozumumanu/fjb1jdi/98861382193.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_off0000fb7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB7F 5312 bytes
SHA-256: d7e1556b1f58ff0239e1fef291a6c932fbf1c81486f02e583f0da816313e2cbc
font_01_sfnt_off00010d9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D9F 12100 bytes
SHA-256: 7d239ee48878d2264d51ac00d914896de84011381ee28a6dd2e2ccb8500eb73e