Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fdccf944144bf79…

MALICIOUS

PDF

71.8 KB Created: 2021-02-25 12:53:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: be3608457b7d2d2d2d0bcae98fdadb85 SHA-1: eedc789abb7f78eb933c640a9537517e57158c0e SHA-256: 4fdccf944144bf792caca1a34c2c486bbc641968b30aaea78fed117b2202d7b1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/award?keyword=kenmore+microwave+790.803+fuse+location PDF link annotation
    • http://nigavereke.mygamesonline.org/45767777733.pdfIn PDF document text
    • http://instapodarok.site/72708837453x40pz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390095/normal_5fee862393c37.pdfIn PDF document text
    • http://accueilcmb.com/83767438665755xe.pdfIn PDF document text
    • http://leopards.space/autotransformer_starter_control_diagramqkjcr.pdfIn PDF document text
    • http://particuliers-societegenerale.xyz/dezarunexabumoqh15w.pdfIn PDF document text
    • http://arendaavto.taxi/8768662744024tbe.pdfIn PDF document text
    • http://fepaporipevari.mypressonline.com/how_to_change_google_maps_fastest_route.pdfIn PDF document text
    • https://rifivubego.weebly.com/uploads/1/3/1/4/131407021/8337421.pdfIn PDF document text
    • http://raxejudesezix.scienceontheweb.net/jowulatawi.pdfIn PDF document text
    • https://nejotadig.weebly.com/uploads/1/3/1/1/131164569/9258188.pdfIn PDF document text
    • https://fagojature.weebly.com/uploads/1/3/3/9/133987822/f3dcb4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pujumek.myartsonline.com/50887381965.pdfIn PDF document text
    • http://nojikigor.myartsonline.com/26379241260.pdfIn PDF document text
    • http://tiwatimab.atwebpages.com/61859218700.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_off0000da85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA85 5916 bytes
SHA-256: f8afef5af993e2f3688a560a2a9f96117f94cc6801bbb458ea7a290097722ff5
font_01_sfnt_off0000eeb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEB9 10452 bytes
SHA-256: 61fa3f46783b5ad844c5421f67918df596954aca84e04924ce2e30205b3fb63b