Malicious PDF — malware analysis report

Static analysis result for SHA-256 f48bf358e1b4f05f…

MALICIOUS

PDF

67.7 KB Created: 2021-02-27 20:55:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7b97afda5746d6e53b41d9a73acaaba0 SHA-1: 3e910bcef7e3a110b8b5e1e2892b31d8a2e37e45 SHA-256: f48bf358e1b4f05fbbe00c1b8c4876ddcfb2f783dba9428ece1785e8a9934776
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://lozipotod.ru/award?keyword=wu+tang+collection+-+kung-fu+troublemaker PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4503197/normal_5fe950793b4bc.pdfIn PDF document text
    • http://recepty-dd.info/34138697079dg2l9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472186/normal_5fdf1e5d238c7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502833/normal_5fcc610140dae.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452609/normal_5febce2f94895.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379054/normal_6014d553eeec1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403947/normal_5fc69dd7df4b4.pdfIn PDF document text
    • https://cdn.sqhk.co/jubawiwa/4gfhbtc/big_bang_theory_theme_song_youtube.pdfIn PDF document text
    • https://cdn.sqhk.co/vumuwuxa/yjghkjd/fox_sports_deportes_en_vivo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466659/normal_60242d418ab3e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448719/normal_5fcb2460cdf06.pdfIn PDF document text
    • http://sq11mini.com/planescape_campaign_setting_reviewm0sib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403823/normal_601f6f9f912c8.pdfIn PDF document text
    • https://cdn.sqhk.co/dofexoxev/iJajhyQ/html_code_play_pro_app.pdfIn PDF document text
    • http://ibkreactiva2020.com/tegomifepirewila8d331.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414153/normal_5fcf3d0bd93b4.pdfIn PDF document text
    • https://cdn.sqhk.co/dabozijide/hjhhaii/57598745593.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459028/normal_600dc4fde43ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468831/normal_60135b8e7b37f.pdfIn PDF document text
    • http://dehydratedoriginalgoodness.com/25769548629si0dj.pdfIn PDF document text
    • http://appeal-ig.com/badopivizuzavobigexcq7hy.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_off0000cc67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC67 5272 bytes
SHA-256: 6d6af5e544448599878ac7fbae1d0b97d67227c31663c23b5981ccb7c138441a
font_01_sfnt_off0000de62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE62 10232 bytes
SHA-256: 0a265755115b1c06c397972e5cbef0e0a40931c5b6ced29d1e9146b44628c73b

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