Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a48f55946e58849…

MALICIOUS

PDF

67.0 KB Created: 2021-01-27 06:21:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: c3be9c915063851159df2dbcbec873a0 SHA-1: fcce0275230369060b5995f1304f31f5aa857e8f SHA-256: 9a48f55946e5884972a1ccac08f18c0c6868685057976e6d886d121ef88b903a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://baarspo.ru/wb?keyword=wood%20wallpaper%20iphone%20xs%20max PDF link annotation
    • https://cdn.sqhk.co/kezixowog/tjdifls/72854229809.pdfIn PDF document text
    • https://mepagalupotope.weebly.com/uploads/1/3/4/2/134265457/0f7e1f42607e60.pdfIn PDF document text
    • https://cdn.sqhk.co/kojetovukufo/majeVTL/20141751893.pdfIn PDF document text
    • https://cdn.sqhk.co/muvasesuru/hdIN4gf/2000s_oldies_playlist.pdfIn PDF document text
    • http://fupomogusi.22web.org/terminating_employee_letter_template.pdfIn PDF document text
    • https://fojaxekixuwid.weebly.com/uploads/1/3/4/7/134743661/859455.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393916/normal_60085a787bbd3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476939/normal_5fc5bb89d6ab7.pdfIn PDF document text
    • https://cdn.sqhk.co/pabelewexo/jgnJhix/crossy_road_unblocked_76.pdfIn PDF document text
    • http://bamejudodenor.iblogger.org/nigemisebas.pdfIn PDF document text
    • https://cdn.sqhk.co/nomitusibop/xgd8jiX/61963739857.pdfIn PDF document text
    • https://cdn.sqhk.co/matelasoguje/ngi7hdF/funny_pics_of_dogs_underwater.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nunitew.rf.gd/5283679879.pdfIn PDF document text
    • http://magivuxitafexox.rf.gd/artifex_mundi_gry_android.pdfIn PDF document text
    • http://tokavasetalan.epizy.com/36162319983.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_off0000c8e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8E5 5372 bytes
SHA-256: fb16ffdbf46b060691e3a06a8434b643980a3b09e25386a72ea3d10cb8f302c8
font_01_sfnt_off0000db19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB19 10832 bytes
SHA-256: 8a56c3b9ba4a2bee34d4c6ffdb9d98eb95cf3a8ac105c6a89d478266eef4e9a8