Malicious PDF — malware analysis report

Static analysis result for SHA-256 993568eefbe2b567…

MALICIOUS

PDF

73.2 KB Created: 2021-03-03 14:32:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 05fb72ce5435b6d5c1ff1667583b7d37 SHA-1: 3390fac8485e274b3488e8750333d948a53e7f96 SHA-256: 993568eefbe2b567b488559ca437236f3f30575f08a9cfe284cee63e48b04cea
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://midufefew.ru/award?keyword=how+to+adjust+wahl+magic+clip PDF link annotation
    • https://cdn.sqhk.co/gusisezepemu/gjjaKhj/99851577122.pdfIn PDF document text
    • https://cdn.sqhk.co/riwaxagi/obdthdT/xipexasefuduvis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475215/normal_6035e59b0b6cc.pdfIn PDF document text
    • https://cdn.sqhk.co/kagaxavog/d3hcLTY/samsung_smart_tv_showroom_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/petebeki/SyLia9n/mesedatizutigonadajebev.pdfIn PDF document text
    • http://dekagexagupeje.iblogger.org/vozigorisusitewivew.pdfIn PDF document text
    • http://wivaserana.mywebcommunity.org/describe_some_social_problems_of_vulnerable_populations.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477913/normal_5ff4df03a9ca1.pdfIn PDF document text
    • https://cdn.sqhk.co/kigakikijebo/eggjgPR/venugikimavijuzo.pdfIn PDF document text
    • http://puxefesezosowej.22web.org/satokiritepezu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452217/normal_6009f89bdbfbc.pdfIn PDF document text
    • https://cdn.sqhk.co/raxoxawupej/jUKShhn/spinach_recipes_for_dinner.pdfIn PDF document text
    • http://vojituvidur.iblogger.org/86505989512.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402014/normal_5fdfbacc1fa05.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xolavozezimodan.onlinewebshop.net/how_to_play_the_dorian_mode_on_guitar.pdfIn PDF document text
    • http://kipoluni.rf.gd/tutorial_lightroom_di_laptop.pdfIn PDF document text
    • http://wosoremozojofam.epizy.com/adverbs_of_degree.pdfIn PDF document text
    • http://zaxutakizet.epizy.com/fufakaxawote.pdfIn PDF document text
    • http://bewomad.rf.gd/7250639034.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_off0000e24e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE24E 5520 bytes
SHA-256: 811aab0ab9741c4f64f4f697d7a129c50fd03840d09644d3cc783f7883e985b7
font_01_sfnt_off0000f50b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF50B 10120 bytes
SHA-256: 9ea01b7a691f4d0d1f4bc99332f17e7f4e14171e1dfdb92a7f0e27a1138de6ad