Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f3e4ce24b64ce92…

MALICIOUS

PDF

71.6 KB Created: 2021-02-14 13:55:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0f80ba52c01f08454bb6375c039c0540 SHA-1: 84f7a723a94317155ba731fcb8696cba54162d65 SHA-256: 4f3e4ce24b64ce9231b8a992bc3653258449bd7bd8d79bd075eb4b327eedb678
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://seumenha.ru/wix?keyword=eoa+telfair+st+augusta+ga PDF link annotation
    • https://cdn.sqhk.co/xexisini/gciijdl/duolingo_learn_spanish_to_english.pdfIn PDF document text
    • http://zejenaxudemato.22web.org/69144062183.pdfIn PDF document text
    • http://xovasaf.iblogger.org/child_maintenance_agreement_template.pdfIn PDF document text
    • http://pusokum.66ghz.com/93623026702.pdfIn PDF document text
    • http://wedogadev.iblogger.org/duwefiponagupuderak.pdfIn PDF document text
    • https://dukidisivaturan.weebly.com/uploads/1/3/5/3/135311912/suzuvuriga.pdfIn PDF document text
    • http://kafalogu.22web.org/jixow.pdfIn PDF document text
    • https://deluwibenarut.weebly.com/uploads/1/3/1/3/131382693/a417f1f3746.pdfIn PDF document text
    • https://cdn.sqhk.co/siloneza/igwp3jj/snake_in_spanish_animals_ppt.pdfIn PDF document text
    • http://xovekofetovo.66ghz.com/raxiludej.pdfIn PDF document text
    • https://cdn.sqhk.co/novigigexuxo/jeigiiy/collect_trudy_s_token_borderlands_3_bug.pdfIn PDF document text
    • https://rofexelugikovu.weebly.com/uploads/1/3/4/7/134732340/153634.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://tekefugenira.epizy.com/tuletutifoxazuwitow.pdfIn PDF document text
    • http://xofenilar.epizy.com/71955172387.pdfIn PDF document text
    • http://mofuvenelopupo.epizy.com/angular_reactive_form_validation_minlength.pdfIn PDF document text
    • http://vomajifinudunu.epizy.com/camera_translator_app_android_offline.pdfIn PDF document text
    • http://lekozuni.epizy.com/80734653295.pdfIn PDF document text
    • http://xizokokov.epizy.com/annotations_example_in_android.pdfIn PDF document text
    • http://donafilozevore.rf.gd/34817070085.pdfIn PDF document text
    • http://mutidulofof.epizy.com/bluetooth_5_android.pdfIn PDF document text
    • http://jalasofumikom.rf.gd/bewakoof_online_apk.pdfIn PDF document text
    • http://fulisawuxulinis.rf.gd/gattu_battu_music_video.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cdcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDCF 4668 bytes
SHA-256: 318d5757ede0a3e25076930a0614a23fe6fcbd2484a678007d8d3ccbf7f69e8e
font_01_sfnt_off0000ddc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC6 10764 bytes
SHA-256: e9b9fc61cae5cc8716218eb85db9bdbf10c20ec2f7880ff2b322abd08c540f6e
font_02_sfnt_off00010252.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10252 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3