Malicious PDF — malware analysis report

Static analysis result for SHA-256 949e18d8208dcef7…

MALICIOUS

PDF

81.2 KB Created: 2021-03-29 00:15:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-10
MD5: 3c784b2e70948bafc8b4ec9a17b7792c SHA-1: 4df3578cfc6b275366f7c744a25308e52e20f3b3 SHA-256: 949e18d8208dcef76b3479265f81a7e6802f19c3d52a6108634d641019e2978c
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://s3.amazonaws.com/pisedij/rovuvafuxajon.pdf In PDF document text
    • https://static.s123-cdn-static.com/uploads/4460477/normal_5ff337a79f57a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478667/normal_603a763237691.pdfIn PDF document text
    • https://s3.amazonaws.com/wumodukubaru/88749749639.pdfIn PDF document text
    • https://s3.amazonaws.com/zasepo/lincoln_sa_200_redface_dimensions.pdfIn PDF document text
    • http://milansit.space/jufujigeliwexupk21e5.pdfIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/29193533794.pdfIn PDF document text
    • https://s3.amazonaws.com/retisovojor/nosebokuporatufopawo.pdfIn PDF document text
    • https://s3.amazonaws.com/fajetufekejo/battle_for_azeroth_soundtrack.pdfIn PDF document text
    • https://s3.amazonaws.com/libosokune/37132978200.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/96065824422.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/60111723829.pdfIn PDF document text
    • http://alcozerox.com/what_are_the_moral_attributes_of_godjivpm.pdfIn PDF document text
    • https://s3.amazonaws.com/fejakixoweka/gitive.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/55616079567.pdfIn PDF document text
    • https://s3.amazonaws.com/bugutaj/worksheets_for_cardinal_and_ordinal_numbers.pdfIn PDF document text
    • https://mezovuduw.ru/wix?keyword=coleman+tent+trailer+awningPDF link annotation
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000101be.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000101be.bin)
    • https://8ed7b8cb-9bae-4def-ad9b-66b28cd11f91.filesusr.com/ugd/740d8c_b12df57e9998493e918a64b793fbeb67.pdf?index=trueIn PDF document text
    • https://101c3d73-5e22-4da1-a203-a3a2a794ce88.filesusr.com/ugd/69a512_9d4888c1d3f3411dbb2f9226fca71821.pdf?index=trueIn PDF document text
    • https://49432a94-54bc-4d13-9d12-ea41d731e1b8.filesusr.com/ugd/a7c689_d6dfead3fee44b07bd7f6e9ee8e5aa07.pdf?index=trueIn 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 extracted file (font_00_sfnt_off000101be.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000101be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101BE 4824 bytes
SHA-256: 02c2a36054127031bacd46578ede4e6f64110e8f3e5443d4b2d1eff2b12979a8
font_01_sfnt_off00011216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11216 11076 bytes
SHA-256: c1865c0562647acc2e70b5f3bd49f7ab75d1c7b091d6b4b040d7ddd817baf488