Malicious PDF — malware analysis report

Static analysis result for SHA-256 0aa65b6dd06269bd…

MALICIOUS

PDF

71.8 KB Created: 2021-03-03 01:06:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ff8001576c349258b8080d4f4c7949da SHA-1: bc35039914649cc20036473ba45d421bfc29462f SHA-256: 0aa65b6dd06269bd847315839f57d5b6d813bc617f5594f13ec8ffecbfa2e246
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=review+of+accommodations+form+nc+2019 In PDF document text
    • http://sexesex.site/ejercicios_de_olimpiadas_matematicas_para_primaria95ynu.pdfIn PDF document text
    • https://gawowulovo.weebly.com/uploads/1/3/5/9/135966180/c75d3655a1.pdfIn PDF document text
    • https://koponabunabo.weebly.com/uploads/1/3/4/5/134520941/5547331.pdfIn PDF document text
    • http://vvvvvvvvvvvvvvvvvvvvvb.xyz/fuxuxumibivo6aoq.pdfIn PDF document text
    • http://xemokajoled.medianewsonline.com/30845207151.pdfIn PDF document text
    • http://madoxorijegobe.sportsontheweb.net/zevugegu.pdfIn PDF document text
    • http://usene.xyz/canon_printer_service_tool_v1074jm470.pdfIn PDF document text
    • https://vevilatibivu.weebly.com/uploads/1/3/6/0/136082609/mopizajizuruzo-jajevudutuz.pdfIn PDF document text
    • http://axacheat4.xyz/55137880614snibi.pdfIn PDF document text
    • http://mon-compte-cmb.best/tikuzelojezrv9s.pdfIn PDF document text
    • http://slampochka.ru/12917723133yw4eo.pdfIn PDF document text
    • http://naturwows.space/pinball_game_windows_for_pc90u5l.pdfIn PDF document text
    • http://domavera.ru/dekudono8mfcp.pdfIn PDF document text
    • http://lnstagram-helping.live/fudazejobevazu7oxmo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zuxokoberibaw.atwebpages.com/beduwekadadew.pdfIn PDF document text
    • http://domuromu.atwebpages.com/95055832554.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/baldurs_gate_2_enhanced_edition_review_metacritic.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_off0000da56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA56 5776 bytes
SHA-256: 7daa9919615fba2991bfa587d6e38021d12aebb560e5964fad22bd5e27021d69
font_01_sfnt_off0000ee07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE07 10460 bytes
SHA-256: 0f7ddb9f06c00feec7f8ab464a80b2a62f1ef6c83e42ec07d5d11f5485a663e1