Malicious PDF — malware analysis report

Static analysis result for SHA-256 186f363c64cc75f4…

MALICIOUS

PDF

76.4 KB Created: 2021-02-13 16:58:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: fa3b68b7c4bc661c563ca6be016faa2a SHA-1: 9eb2b764ee663384112612dad4d3399d93c17e73 SHA-256: 186f363c64cc75f4bc30b3020699d96ab71b04ffacbffcfbfa5be104956b240b
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://druttle.ru/wb?keyword=thanksgiving%20worksheets%20pdf%20math PDF link annotation
    • http://damvglaz2.xyz/descargar_worms_2_armageddon_para_androidiy7rp.pdfIn PDF document text
    • http://unityfree.xyz/tenodekojozisas8.pdfIn PDF document text
    • http://mangalvpodarok.ru/62442160475nsogo.pdfIn PDF document text
    • http://sarkife.site/go_math_3rd_grade_homework_answerupwjw.pdfIn PDF document text
    • http://catsism.com/cavernous_malformation_diagnosis4fim4.pdfIn PDF document text
    • https://cdn.sqhk.co/gabazumad/Zidgcia/58575321833.pdfIn PDF document text
    • http://ita-talia.fun/82491206133fjb5m.pdfIn PDF document text
    • http://shoppingyxplus.xyz/sylvania_tv_model_ld320ss1_manual07qzq.pdfIn PDF document text
    • http://dommasters.site/zinoxidodemolijopuxidibig6do.pdfIn PDF document text
    • https://cdn.sqhk.co/xibumediw/j9hjge8/amazon_seller_account_uae_requirements.pdfIn PDF document text
    • https://cdn.sqhk.co/dewozoju/iaiDhet/ballet_classes_near_me_for_9_year_olds.pdfIn PDF document text
    • http://netewe8.xyz/38697501855cspje.pdfIn PDF document text
    • http://usersdeviceprotectionservice.site/lulomibusonurexadux7slbg.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vosimamasi.epizy.com/proper_squat_form_t_nation.pdfIn PDF document text
    • http://saruwuf.epizy.com/nexepaxovizuta.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_off0000ee79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE79 5588 bytes
SHA-256: e60932f21d79776fbb956e999d4a71bffd2ec462dbd998368a31ee7ffc43ae52
font_01_sfnt_off00010169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10169 10416 bytes
SHA-256: b9df515cbd3d7255792720dc6cd95037c6fbf287418d06cfea77d773b8aca93f