Malicious PDF — malware analysis report

Static analysis result for SHA-256 9499dc1c62fecae6…

MALICIOUS

PDF

57.0 KB Created: 2022-07-13 04:27:54 +03:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 5.15.4) First seen: 2026-04-11
MD5: 510cba24a429955522ac5353092d07ef SHA-1: 3dd60dc91c1c31312ef3358b2b5fd7e0b2e42858 SHA-256: 9499dc1c62fecae633e440fef07ac0b8041d163a452bb6c9c08a779100e61cbc
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 5

  • 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 http://eelruxe.com/wb3?utm_term=current%20airman PDF link annotation
    • http://bfr-bialapodlaska.pl/userfiles/file/xeroni.pdfIn PDF document text
    • https://ufcedu.az/public/uploads/files/zofolipinasiwopan.pdfIn PDF document text
    • https://susudomi.weebly.com/uploads/1/3/5/3/135319884/951640.pdfIn PDF document text
    • https://lunisaga.weebly.com/uploads/1/3/5/3/135302545/nujinoji.pdfIn PDF document text
    • https://pipanemedu.weebly.com/uploads/1/3/7/5/137505834/7100300.pdfIn PDF document text
    • http://klimafertotlenites.hu/kcfinder/upload/files/wojogiduvam.pdfIn PDF document text
    • https://kitewozobubipu.weebly.com/uploads/1/3/4/5/134527197/2698597.pdfIn PDF document text
    • https://ziripovopibew.weebly.com/uploads/1/3/0/8/130874468/4208284.pdfIn PDF document text
    • https://jatransfer.com/userfiles/file/31058606791.pdfIn PDF document text
    • https://indiachristian.org/uploads/files/48760173520.pdfIn PDF document text
    • https://pomojavuvebigal.weebly.com/uploads/1/4/1/3/141341862/9075383.pdfIn PDF document text
    • https://www.coltishallclinic.co.uk/dashboard/ckeditor/kcfinder/upload/files/gizas.pdfIn PDF document text
    • https://bulituru.weebly.com/uploads/1/4/1/7/141735208/jewedijoguvutul.pdfIn PDF document text
    • https://nibowivuxewanu.weebly.com/uploads/1/3/1/3/131379040/rapumusemubese-kasib-togibaw-pipanatexese.pdfIn PDF document text
    • http://ed-union05.ru/files/file/xegavodejukubeti.pdfIn PDF document text
    • https://wesatelifap.weebly.com/uploads/1/3/1/8/131871597/pogivaveve-xagog.pdfIn PDF document text
    • http://kfoodntea.com/dataroom/file/wukajosizafolunov.pdfIn PDF document text
    • http://www.gastroblanik.cz/upload/files/31457310020.pdfIn PDF document text
    • https://pokededemevebej.weebly.com/uploads/1/4/1/7/141712946/ditut.pdfIn PDF document text
    • http://gselectronic.pl/upImg/files/9018461069.pdfIn PDF document text
    • https://nebedanuvud.weebly.com/uploads/1/4/2/4/142472036/9993925.pdfIn PDF document text
    • http://www.bitstream.comIn extracted file (font_00_sfnt_off00008fd3.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008fd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FD3 16492 bytes
SHA-256: bd3d0cc113761bb96a6b246a2ec56b109d47c78480002aa0058206f68d8de410
font_01_sfnt_off0000bc40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC40 9992 bytes
SHA-256: 62f4adfda34fdfc38986255c85499eedbec4b3236bc802f644401771cf7e05c5