Malicious PDF — malware analysis report

Static analysis result for SHA-256 564f86a7941b3eee…

MALICIOUS

PDF

72.1 KB Created: 2021-02-19 12:07:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ff00f64f3e04997d20f2313b3f2a551d SHA-1: 0fb232ed5f38cf3a305a97eac60dd81db16d2a47 SHA-256: 564f86a7941b3eeee2195099183c6037243d365f278d83e5dbda5a2ecf38d430
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://crophysi.ru/wix?keyword=como+grabar+juegos+para+gamecube In PDF document text
    • https://xojutezakiveze.weebly.com/uploads/1/3/5/3/135318362/sexobuzib_xasefasareg_ragafegogisoz.pdfIn PDF document text
    • https://wedutigumufezeb.weebly.com/uploads/1/3/4/6/134659425/tumenepaxujib.pdfIn PDF document text
    • https://tatemisi.weebly.com/uploads/1/3/4/5/134596356/jisokawojajola.pdfIn PDF document text
    • http://autoupgrade.website/nobovusaxunijetevedjvnp.pdfIn PDF document text
    • http://salonvarna.com/feneniludukenesepuwapadom0jfia.pdfIn PDF document text
    • http://kanshoper.site/71966950508gash8.pdfIn PDF document text
    • http://yozi.store/katobwtjqd.pdfIn PDF document text
    • http://abouts.space/f1_today._net_formula_1_newsck05y.pdfIn PDF document text
    • https://kazigujexumakul.weebly.com/uploads/1/3/4/3/134320364/niwadikoxuwox.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nisijavifusepov.epizy.com/88763236299.pdfIn PDF document text
    • http://mevonaku.rf.gd/netbackup_deduplication_guide.pdfIn PDF document text
    • http://gebuzabode.epizy.com/vodoza.pdfIn PDF document text
    • http://kebanibaru.epizy.com/37688067224.pdfIn PDF document text
    • http://segigeserife.epizy.com/fixture_design_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/78872229027.pdfIn PDF document text
    • http://lufefavi.epizy.com/facebook_business_description_template.pdfIn PDF document text
    • http://bukinajomo.epizy.com/cant_app_apple_store.pdfIn PDF document text
    • http://zijemuviwovo.rf.gd/london_evening_standard_crossword_answers.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_off0000da4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA4A 5344 bytes
SHA-256: 8d45f29d026168a2168dd6959df0b806f56b24caf0f631a7b6d7e8561924395e
font_01_sfnt_off0000ec5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC5E 12208 bytes
SHA-256: ce47ef9e82f47abbda39b77c968df4d5d594fc150bb5c13db1670c572346d983