Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7b6846a70c91dec…

MALICIOUS

PDF

73.5 KB Created: 2021-02-20 02:01:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 80a8987a46969531c8d165e6c00e568c SHA-1: aa4a1c6397c25ef22d2d42bc7272d300d056fde2 SHA-256: b7b6846a70c91dec46ef14548d988b3bd5901b4c771262f0640c9ccfae31b7b5
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://leonvi.ru/aws?utm_term=causes+of+acne+on+face+chest+and+back PDF link annotation
    • http://accueilcmb.com/ss_316_chemical_compositiongehah.pdfIn PDF document text
    • http://boothattendant.com/18121619932bq0xm.pdfIn PDF document text
    • https://liletalezawo.weebly.com/uploads/1/3/4/5/134591830/gutiwaforafusanurer.pdfIn PDF document text
    • https://cdn.sqhk.co/jujegopenop/5Bm25gL/4695931016.pdfIn PDF document text
    • http://psylath.com/chevrolet_equinox_2016_parts_manuali14xp.pdfIn PDF document text
    • https://cdn.sqhk.co/rasepotobami/jhbGrhd/sabaleriji.pdfIn PDF document text
    • https://nuvarimo.weebly.com/uploads/1/3/1/3/131378817/mazuxux.pdfIn PDF document text
    • http://1xbet-regi.site/990095232770altf.pdfIn PDF document text
    • http://legendarycraft.ru/inaat_mhendislii_ders_notlarndgea.pdfIn PDF document text
    • http://titoto.xyz/what_are_the_five_yamas_of_yogav9h2c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460057/normal_5fc7b703983ca.pdfIn PDF document text
    • https://cdn.sqhk.co/kavejufa/hdjebIm/kontrabida_in_english.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wofaketizezoja.epizy.com/manual_archive_outlook_2019.pdfIn PDF document text
    • http://vejabimumen.epizy.com/61142677068.pdfIn PDF document text
    • http://zusobowes.rf.gd/pupegesi.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_off0000e1ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1CE 5088 bytes
SHA-256: f33667eadbcb48973aa151244af188b436af621014118698aff1b773523ed51d
font_01_sfnt_off0000f31a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF31A 11524 bytes
SHA-256: ada1069854240759dfab60b18cdc9833ed3995e62b3e4e9cd8e7cd2920dfd450