Malicious PDF — malware analysis report

Static analysis result for SHA-256 409b58a085ae202a…

MALICIOUS

PDF

69.6 KB Created: 2021-03-03 08:37:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 0571836ea8068c5c76e2c2ba63251d17 SHA-1: 2e86e9b1b78a364c5af9e2804816e6dbca7447a3 SHA-256: 409b58a085ae202aac736327a24c12b730b96b3092aaa0195b316d7a79bce37b
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://jacksth.ru/wix?keyword=aa+meetings+kalamazoo PDF link annotation
    • https://cdn.sqhk.co/gujuvizaja/2sicicn/usa_network_channel_number_on_directv.pdfIn PDF document text
    • https://cdn.sqhk.co/mobixipotex/X3zCjct/me_pongo_in_english.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403685/normal_5ffbf32230b36.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366665/normal_5fd23c7027213.pdfIn PDF document text
    • http://creditreportusa.info/142479091729mc16.pdfIn PDF document text
    • http://xevusezes.medianewsonline.com/wurogavagis.pdfIn PDF document text
    • http://tophomework.space/namefeagup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368740/normal_603e887364662.pdfIn PDF document text
    • http://sudilufib.getenjoyment.net/4_pics_1_word_7_letter_answers_game_solver.pdfIn PDF document text
    • https://cdn.sqhk.co/jekuvobu/niaifbj/business_turnaround_strategy_template_ppt.pdfIn PDF document text
    • https://cdn.sqhk.co/zubavagi/iigjJn5/bagetamibuka.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410702/normal_601f82c69116e.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/zarelusipofox/lakababuvix.pdfIn PDF document text
    • https://s3.amazonaws.com/furunumaroxun/zamaxuditeriru.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/continuation_sheet_meaning_in_tamil.pdfIn PDF document text
    • http://mukanebesiva.atwebpages.com/75837323621.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_off0000d357.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD357 5012 bytes
SHA-256: 467b4826146878f0908740791cc85db53d50e643a31d7ffcb8d5d93792c07539
font_01_sfnt_off0000e464.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE464 10892 bytes
SHA-256: a923c002922081a6f86b18e12e5554c5b41facfa4ab7c74fbe6195b9683af97b