Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dbd61da158fcf10…

MALICIOUS

PDF

63.3 KB Created: 2021-02-27 12:09:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 159d6d25f09147b0cc02e2a600ffda6e SHA-1: 0737cacdce9e7345306e1609ea3f978b55fffcdb SHA-256: 3dbd61da158fcf10c825b0d1acc2aa82990b09480939fcaefeae2d352beca98b
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/award?keyword=cub+scout+badge+book+pdf PDF link annotation
    • http://edalovert.xyz/racial_and_ethnic_groups_13th_editiony9mam.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375907/normal_60021f328ced8.pdfIn PDF document text
    • https://cdn.sqhk.co/sitosuduf/eUTf6SP/78116666110.pdfIn PDF document text
    • http://reduslim-italy.site/79809226272bk73.pdfIn PDF document text
    • https://wexarasi.weebly.com/uploads/1/3/4/3/134351888/wilaxunipala-zofotogibe.pdfIn PDF document text
    • http://www-sfr-fr-monespace.com/guia_autometrica_enero_20205pnef.pdfIn PDF document text
    • http://ipoteka.net/dusutituzokuziwi7lls2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xologikaju.atwebpages.com/asi_hablaba_zaratustra_resumen_por_capitulos.pdfIn PDF document text
    • https://s3.amazonaws.com/bomifabipi/new_hd_movie_in_bollywood.pdfIn PDF document text
    • https://s3.amazonaws.com/filidabut/taloj.pdfIn PDF document text
    • https://s3.amazonaws.com/kelageketisefuv/43174490727.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/45034684607.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_off0000bbd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBD4 5304 bytes
SHA-256: cb37f08624745d741ac2d48dc33ac3533c09cd4166210c3f29142c3a088a98a4
font_01_sfnt_off0000cdf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDF8 10164 bytes
SHA-256: 94e135df3da4446902e2dc77e5f5d26eba5a7cfe63d168d3d135486af49ab8dd