Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c6a5c6caf4ae0f7…

MALICIOUS

PDF

64.8 KB Created: 2021-01-25 09:57:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0f9c05db53ea4e109f9e240556ca3d8d SHA-1: b97792c3df9031c86ef9d03207287a80fff9df55 SHA-256: 6c6a5c6caf4ae0f7f0870b91562ae909fab071a1e9ad7682a209d8b683a52a2f
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://jottigo.ru/aws?utm_term=addy+nagar+new+song PDF link annotation
    • https://vomizovuzib.weebly.com/uploads/1/3/1/6/131637161/5578949.pdfIn PDF document text
    • https://cdn.sqhk.co/wodaximewule/7nhg0hb/58478803985.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417129/normal_5fd3d9e25babb.pdfIn PDF document text
    • https://pinabufibofux.weebly.com/uploads/1/3/2/6/132682338/lemewupuma.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473039/normal_60064574e9885.pdfIn PDF document text
    • https://sitimewodojex.weebly.com/uploads/1/3/1/8/131856527/jowojetab_zupuxedor_paropopuk.pdfIn PDF document text
    • https://cdn.sqhk.co/sifolilo/8ygg9WQ/95377406494.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444853/normal_5fd1087d35f56.pdfIn PDF document text
    • https://cdn.sqhk.co/gaximeme/YijrOgg/fetutekateripixaruta.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370056/normal_5fdd83f115ca1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411915/normal_5fecf840d445f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474988/normal_5fdbd4f7876ac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460447/normal_5feee0584f20a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376088/normal_5fd8ad0144f5d.pdfIn PDF document text
    • https://puriruwuz.weebly.com/uploads/1/3/5/3/135395363/luxetemo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gugefojekasarul.epizy.com/ajogbajesu_twins_songs.pdfIn PDF document text
    • http://ralipuzejemozuz.epizy.com/43550441087.pdfIn PDF document text
    • http://baxodivol.rf.gd/gigavazilevu.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_off0000c2e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2E5 5144 bytes
SHA-256: 4ea8bcda27cd2a11a509488b2b9c475ef2676c539dd579e04599587d298972e0
font_01_sfnt_off0000d48c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD48C 9984 bytes
SHA-256: 999e374a55327469323a26a0ccfc680539d9a83b70a8d47aa729588f3d780dc0