Malicious PDF — malware analysis report

Static analysis result for SHA-256 468aca16274bef6e…

MALICIOUS

PDF

69.3 KB Created: 2021-03-01 04:29:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 815c4922356b16c636246987539e66ae SHA-1: 22abe493f92df04c68479e006ec2637339eebe3b SHA-256: 468aca16274bef6edb91eb00389cb798580aacd36cfbb5df1308048846942692
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://fokemale.ru/award?keyword=the+odyssey+fagles+audiobook PDF link annotation
    • https://kumobavogi.weebly.com/uploads/1/3/2/3/132303339/5375431.pdfIn PDF document text
    • https://pafebexazare.weebly.com/uploads/1/3/1/1/131163914/suraboxovemezuda.pdfIn PDF document text
    • http://lozejebivo.scienceontheweb.net/construct_2d_array_python.pdfIn PDF document text
    • http://rolopigabetitu.scienceontheweb.net/domupuwev.pdfIn PDF document text
    • http://iqecoportal.ru/mlp_cheese_sandwich_color_guidepx8wk.pdfIn PDF document text
    • http://organic100.fun/xakozixumonedej69w8f.pdfIn PDF document text
    • https://cdn.sqhk.co/tinupolureg/fzjiktJ/3488222862.pdfIn PDF document text
    • https://dojoxokixen.weebly.com/uploads/1/3/4/8/134878929/wiserazekizisogi.pdfIn PDF document text
    • http://ronifibofizet.medianewsonline.com/xowuteba.pdfIn PDF document text
    • https://vizegibog.weebly.com/uploads/1/3/4/4/134458583/benawipowesufetudig.pdfIn PDF document text
    • http://vevaroda.scienceontheweb.net/36185058234.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/59563553496.pdfIn PDF document text
    • http://kowifojabar.rf.gd/goat_simulator_free_apk_mod.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_off0000d273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD273 5328 bytes
SHA-256: bff12bc45777ec69cc4162466248c46fd5fbe4bb165db02f075808d90ecf309e
font_01_sfnt_off0000e4a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4A4 10488 bytes
SHA-256: bd59ff16acb10fc40218f117d1135fbe065190762b0be2c25b2a6e37bf790150