Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a92d199aab53af8…

MALICIOUS

PDF

73.9 KB Created: 2021-02-16 11:48:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a9802c15e8cfcce938980f0fb9fd473e SHA-1: 5ca1c8a1269d99aab1562b840360ed74ff1c5f9e SHA-256: 3a92d199aab53af8bb851a239a1ab2d0943a431cc94376a9ca9c6957bdfe1b5d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://jacksth.ru/wb?keyword=my%20pet%20dog%20essay%20for%20class%203%20in%20hindi PDF link annotation
    • https://cdn.sqhk.co/zovifesojeme/gheygdo/3016123534.pdfIn PDF document text
    • http://meine-gebuhrenfrei.com/resumen_del_libro_la_revolucioncitac4djr.pdfIn PDF document text
    • http://kinorio5.xyz/19526880127bn7q1.pdfIn PDF document text
    • http://vogeposekuxav.66ghz.com/the_secret_garden_1993_full_movie_online.pdfIn PDF document text
    • http://keribek.22web.org/mango_man_shoes_size_guide.pdfIn PDF document text
    • https://jasitonil.weebly.com/uploads/1/3/4/0/134096785/fexisonidemazin_duzolazivukebem_xuvod.pdfIn PDF document text
    • http://lnstagram-verifedbadge.com/biblia_en_hebreo710f6.pdfIn PDF document text
    • https://pegupirorig.weebly.com/uploads/1/3/1/4/131406852/8247339.pdfIn PDF document text
    • https://boxemafal.weebly.com/uploads/1/3/3/9/133997404/6018392.pdfIn PDF document text
    • https://cdn.sqhk.co/nesadatifu/haFawhb/88944345208.pdfIn PDF document text
    • https://wuvotawek.weebly.com/uploads/1/3/4/8/134872633/zurimugepaligime.pdfIn PDF document text
    • http://help-igcopyright.xyz/54911684633hjhgi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wutogugej/fujefegoxomezamed.pdfIn PDF document text
    • http://zavipazo.epizy.com/vascular_malformation_brain_causes.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatofubote/basanthi_telugu_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/38167953297.pdfIn PDF document text
    • https://s3.amazonaws.com/zonivezada/musidazosagukefukoxo.pdfIn PDF document text
    • https://s3.amazonaws.com/jafujasiwetid/73898923321.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_off0000e181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE181 5688 bytes
SHA-256: a9562066deeaf3e401757693c29a95b274c5be2957aebeda773258ca7c9e4c8a
font_01_sfnt_off0000f4f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4F8 10476 bytes
SHA-256: 14aff8411f34b8a114af86b86739247fb4d3f73c76daf793c64ea27ad640e022