Malicious PDF — malware analysis report

Static analysis result for SHA-256 08a51d9b1321ff80…

MALICIOUS

PDF

72.5 KB Created: 2021-02-18 13:37:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: dd160d239d6e937a67622f314a1d0c5d SHA-1: f6a1393ebcf7821bae0fa7b3e3db9fb23ad41728 SHA-256: 08a51d9b1321ff808a52689f80920556f7159d529fe0b0526a5606ee4e37c9e2
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=oracion+de+la+ma%25C3%25B1ana In PDF document text
    • https://static.s123-cdn-static.com/uploads/4410448/normal_5ff30caeb61e7.pdfIn PDF document text
    • https://gorenusedom.weebly.com/uploads/1/3/5/3/135326887/tofasusekipoj.pdfIn PDF document text
    • https://cdn.sqhk.co/pupevadojas/6hif4ia/rugag.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482638/normal_5ffe5360e52e3.pdfIn PDF document text
    • http://dijawobal.iblogger.org/2544838610.pdfIn PDF document text
    • https://naluzakagowu.weebly.com/uploads/1/3/1/4/131411806/sizobetonuv.pdfIn PDF document text
    • http://vseti.life/honeywell_barcode_scanner_auto_enter_androidac5wx.pdfIn PDF document text
    • https://cdn.sqhk.co/gawukale/vgf3uc2/zombie_haters_cheat_apk.pdfIn PDF document text
    • http://pet-guru.shop/zuwokukofibuzibav5ekz.pdfIn PDF document text
    • https://girosiwubu.weebly.com/uploads/1/3/0/7/130740458/wikufazofelufogepeni.pdfIn PDF document text
    • https://fuburufogukedez.weebly.com/uploads/1/3/0/7/130776130/15ddb9531afd.pdfIn PDF document text
    • http://gedagefi.22web.org/cfa_level_1_books_free_2018.pdfIn PDF document text
    • https://cdn.sqhk.co/posebozej/wjhHDif/83519514333.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/votubukaxogilix/ziweruman.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/android_appcompatseekbar_style.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/12065225825.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/microservices_architecture_patterns.pdfIn PDF document text
    • https://s3.amazonaws.com/sixolose/post_nuptial_agreement_template_free_uk.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_off0000dd46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD46 5144 bytes
SHA-256: 700174fdad8fe3d4134bc3298fb5e3d03af74495504e18652767de0d352976cf
font_01_sfnt_off0000ee68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE68 11432 bytes
SHA-256: 42840344f8a1a3f6848f8c53fdb5e69c0c1f09ea4ec532f54a2a78cec0797537

Open this report in the interactive analyzer, or submit your own file for analysis.