Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb9b2e53a093d639…

MALICIOUS

PDF

73.1 KB Created: 2021-01-28 23:47:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a2cd4fab203683336f615eb129b2c1f4 SHA-1: 9662b02dd8646bee2785e999a9515050198f0aa4 SHA-256: fb9b2e53a093d639a382f6f957052d96eb9b87ec49617e15ff88ac4ea6f063b3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/wb?keyword=coin%20pusher%20machine%20for%20sale%20ireland PDF link annotation
    • http://immorta-cross1.club/do_nasty_gal_shoes_run_true_to_sizevq4qp.pdfIn PDF document text
    • http://buyfastedcircle.xyz/font_iphone_for_android_downloadr7aak.pdfIn PDF document text
    • http://webmastervlad.ru/repulsed_synonym_adjective2dun4.pdfIn PDF document text
    • http://drovazvenigorod.ru/53123860724kt4cs.pdfIn PDF document text
    • https://sasanufodokedu.weebly.com/uploads/1/3/0/9/130969760/nezelurixape_pedapejafuperu.pdfIn PDF document text
    • http://zvezdasevera.online/death_of_a_salesmanmmrzp.pdfIn PDF document text
    • http://deemonatrafik.xyz/pazojozegzbsni.pdfIn PDF document text
    • http://datingdate.site/budevuxoq6b6h.pdfIn PDF document text
    • http://adminhalil.com/50153523356knk1k.pdfIn PDF document text
    • https://nukusuruv.weebly.com/uploads/1/3/1/8/131857442/f7a1dff.pdfIn PDF document text
    • http://airet.space/92044644943cdf7u.pdfIn PDF document text
    • http://parhelifrl.space/global_citizenship_definitionom311.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/sagotomagin/kutty_movies_collection_2019_free.pdfIn PDF document text
    • http://wufofot.rf.gd/44854810688.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/bonorogafegoxozex.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_off0000dfcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFCF 5300 bytes
SHA-256: 5c43f6f067bf5b5efa4440a35f0cc72b85eaa02e8168916a428fcc423d20b236
font_01_sfnt_off0000f1a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A2 11108 bytes
SHA-256: 24238b1a9666e4fba0a74ea16faa7e17ce3edfbcfa0634700382dde439209df2