Malicious PDF — malware analysis report

Static analysis result for SHA-256 55e321c41caa800b…

MALICIOUS

PDF

66.4 KB Created: 2021-03-01 08:11:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: dbdc2dc14e54c43bbe839f59ca60f503 SHA-1: 1ac2199d04ac2318c0ee75eaef6c10149e252bb0 SHA-256: 55e321c41caa800b11fa3b3316db026186c8ddfc8d6be694ce229bc73e59cf45
126 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
  • 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://midufefew.ru/wix?keyword=paper+mario+64+wii+download PDF link annotation
    • https://gukufevekexuse.weebly.com/uploads/1/3/5/3/135305262/pojejise-warivufeve.pdfIn PDF document text
    • http://nipugupaf.22web.org/neet_hall_ticket_link.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457305/normal_5fe9f248f35ae.pdfIn PDF document text
    • https://vugilove.weebly.com/uploads/1/3/4/2/134234765/gawik-fodudes-lufelen-venasaro.pdfIn PDF document text
    • http://vowogibex.22web.org/peppermint_beadlet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387411/normal_6017bf8e97da9.pdfIn PDF document text
    • https://fofapisobav.weebly.com/uploads/1/3/4/7/134712410/limegabof.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471467/normal_5fde93b3c4e86.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/guxosa/9958462793.pdfIn PDF document text
    • http://pusevim.epizy.com/45927706921.pdfIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/norse_mythology_loki_family_tree.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/69982931205.pdfIn PDF document text
    • http://ditatunejapazik.epizy.com/action_jackson_movie_hd_mp4.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_off0000c5e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5E7 5260 bytes
SHA-256: 3ae6ecd2c9811b0f66bed0293939dedbb7585e581c627bf7f07ef199323d17cb
font_01_sfnt_off0000d7cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7CD 10500 bytes
SHA-256: 574f80a02426189c56bd2df277c0fa1306c742efc124d0ea92199c5fea330475