Malicious PDF — malware analysis report

Static analysis result for SHA-256 8eaac5da31a1dce2…

MALICIOUS

PDF

62.1 KB Created: 2021-02-13 16:02:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 526e6d3a5bdcfaeb750b105ef96ae1f9 SHA-1: ea10907a88b51eb8275b2217e051815e90e2ae03 SHA-256: 8eaac5da31a1dce259ba15887977107108c19a3e291a2b027aff542ddd5742b1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/aws?utm_term=ielts+speaking+questions+part+2+with+answers PDF link annotation
    • https://cdn.sqhk.co/vizoxaxijojo/Zoicjd1/5249417035.pdfIn PDF document text
    • https://nobakavukip.weebly.com/uploads/1/3/4/3/134373074/00534600769.pdfIn PDF document text
    • http://rezltml.xyz/64106595563xovgj.pdfIn PDF document text
    • http://helplnstagram-confirm.com/999554503724ucdl.pdfIn PDF document text
    • https://litapofigiwo.weebly.com/uploads/1/3/5/3/135349015/6800402.pdfIn PDF document text
    • https://cdn.sqhk.co/rolaravez/yihovie/liverpool_football_club_latest_news_daily_mirror_online.pdfIn PDF document text
    • http://pojekofa.iblogger.org/zepijidekexulezelovutud.pdfIn PDF document text
    • http://borutafag.66ghz.com/chimney_sheep_size_guide.pdfIn PDF document text
    • https://rojirewika.weebly.com/uploads/1/3/2/7/132710632/wedijugafepokug.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488807/normal_6002546fb6cd9.pdfIn PDF document text
    • http://cabinetsapp.xyz/kapamopemexosokewewuwfzyg5.pdfIn PDF document text
    • https://lixubirenolona.weebly.com/uploads/1/3/4/6/134669397/c0d2b532ba.pdfIn PDF document text
    • http://hydraruzxpnew4af.exchange/carolina_panthers_injury_report_today7p8p6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lunujebof.rf.gd/bamemikuvutekuni.pdfIn PDF document text
    • https://s3.amazonaws.com/gomaxod/simply_satie_piano_sheet_music.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_off0000b7e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7E6 5432 bytes
SHA-256: d313908d924d87a808d6860e5bdf169b626a23da82cb1e01529e858780ebec38
font_01_sfnt_off0000ca69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA69 9760 bytes
SHA-256: 7b3eea7e456dad913a464f6e49af03b49a96d1247b165832b98cfa27f58b2031