Malicious PDF — malware analysis report

Static analysis result for SHA-256 69b0fc7b47bed711…

MALICIOUS

PDF

69.0 KB Created: 2021-02-26 13:27:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: cf8caa7bdcacc38ab3f4b1cad2ba7d88 SHA-1: 86f67ad472cde178f24993ef32a26ce4f2ecd099 SHA-256: 69b0fc7b47bed7119b86c02b0ed58b5ae3abd19516bb22a04ad326a65f8d32fb
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://midufefew.ru/wix?keyword=mayan+math+worksheet+pdf PDF link annotation
    • http://tosefabebiribow.scienceontheweb.net/nazijirokugubipatives.pdfIn PDF document text
    • https://cdn.sqhk.co/pefemezized/fggjhgh/carrot_bundt_cake_recipes_from_scratch.pdfIn PDF document text
    • https://cdn.sqhk.co/gutemokerezo/je0LheF/86133601157.pdfIn PDF document text
    • http://sakulog.sportsontheweb.net/kundalini_yoga_books_in_telugu.pdfIn PDF document text
    • http://paselon.getenjoyment.net/xawurewosodo.pdfIn PDF document text
    • https://nukimaxirob.weebly.com/uploads/1/3/0/7/130776041/zebatoze_lodevupaki.pdfIn PDF document text
    • http://siwivelijutore.medianewsonline.com/nikalalefidenetudomexuji.pdfIn PDF document text
    • http://bapatavusirave.mygamesonline.org/jixuro.pdfIn PDF document text
    • http://fajujefa.getenjoyment.net/984016200.pdfIn PDF document text
    • http://gejokakop.mygamesonline.org/70832616153.pdfIn PDF document text
    • https://cdn.sqhk.co/zujubokave/agghgJ6/mokidivesozuxuxulebagob.pdfIn PDF document text
    • http://mapotilij.mygamesonline.org/what_is_ls_full_name.pdfIn PDF document text
    • https://cdn.sqhk.co/xubipoxeguza/yicCCgc/duwurivejinu.pdfIn PDF document text
    • http://nomenowunesazoz.scienceontheweb.net/how_to_setup_bose_soundbar_700_remote_control.pdfIn PDF document text
    • http://xufededubumavif.scienceontheweb.net/5437630879.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://supuwevul.atwebpages.com/trx_strength_workout.pdfIn PDF document text
    • https://s3.amazonaws.com/zowejunef/51365581581.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/collapse_of_bretton_woods_system.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_off0000d1dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1DC 5512 bytes
SHA-256: ba1b9502c3e1b2f524b2a451aed3551ad82bb7b41af13b0d082f621779a71ddb
font_01_sfnt_off0000e495.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE495 10096 bytes
SHA-256: f6420464f34615bc67f89959a2f0502471b7e0937dcb7c225e69d84052b58415