Malicious PDF — malware analysis report

Static analysis result for SHA-256 0188cf7bb9bb755e…

MALICIOUS

PDF

80.6 KB Created: 2021-02-02 02:47:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-08
MD5: 780f1fc59e27ba9ebb5d857c16d7d675 SHA-1: 64e0f84f1036cd74a391027f830e2d90a80676f8 SHA-256: 0188cf7bb9bb755e5339df6b937a45f732ba40ab708a52dbad1d17dd52c7b3a7
196 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.
  • 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://trafffe.ru/wb?keyword=my%20talking%20tom%20friends%20apk%20mod%20hack PDF link annotation
    • https://biwamuneluzotip.weebly.com/uploads/1/3/2/6/132696598/vedikozaved.pdfIn PDF document text
    • https://cdn.sqhk.co/ruperodu/sXidPP3/ngp._emu_1._5._42_apk.pdfIn PDF document text
    • https://zawibovime.weebly.com/uploads/1/3/2/6/132681883/f8dac81e6bc.pdfIn PDF document text
    • https://bazajiwudimikot.weebly.com/uploads/1/3/4/3/134344454/jiwilozonivuwo-dedusetadunupi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379974/normal_5fde614a1e6e4.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/53357616819.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471081/normal_5fe17b936dc47.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450864/normal_5fcf1a485b927.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414159/normal_5fe43458c6295.pdfIn PDF document text
    • https://s3.amazonaws.com/desenaz/reading_worksheets_for_esl_beginners.pdfIn PDF document text
    • https://firulasimasib.weebly.com/uploads/1/3/0/9/130969438/7270562.pdfIn PDF document text
    • https://s3.amazonaws.com/juzinaramip/vavelisitalajane.pdfIn PDF document text
    • https://lagukowimewalis.weebly.com/uploads/1/3/5/3/135335318/bonopapurexuxav-povakazir-fokuwomesaret.pdfIn PDF document text
    • http://nonretloli.site/happiness_event_love_nikki_guidemhx0c.pdfIn PDF document text
    • http://sport-stavki.fun/mapa_de_chiapas_carreterashqa3e.pdfIn PDF document text
    • https://s3.amazonaws.com/tevigotu/accp_heparin-_induced_thrombocytopenia_guidelines.pdfIn PDF document text
    • http://kellys.space/2755774136960h8u.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000e366.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000e366.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00012576.bin)
    • 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_off0000e366.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e366.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE366 5528 bytes
SHA-256: c9f3e98138553c21b5d0cd59f71ffaa6f173bf38270c2fcaf7c9b15c48ee9712
font_01_sfnt_off0000f613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF613 22448 bytes
SHA-256: 388785d790d125bc2cc13beeef9f81cf090a0fff77d72b11101193e0dc45b1a2
font_02_sfnt_off00012576.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12576 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2