Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca630f81cfd97a2d…

MALICIOUS

PDF

83.9 KB Created: 2022-04-30 21:17:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: e12ff678edbd605f10a8da0c8ff722f7 SHA-1: 8976049df88fc96511760873385c493b380ecd78 SHA-256: ca630f81cfd97a2d0f29a4fb8af0b6055b4a7f8c0cf70619e7c6a993d6edd106
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
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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://reafamily.lt/ckfinder/userfiles/files/82351933965.pdf In PDF document text
    • http://sinojjacob.com/userfiles/file/bopoxipowivilizobure.pdfIn PDF document text
    • https://minhgianggroup.vn/upload/files/vejerizixifobizeruzodoj.pdfIn PDF document text
    • https://3visiontech.com/piceditor/file/16873555161.pdfIn PDF document text
    • http://tubesealer.com/uploaded/file/6661561416248e1d58119a.pdfIn PDF document text
    • http://langyupharm.com/upload/files/51839304895.pdfIn PDF document text
    • https://eastoncn.housemember.com/uploads/files/libudupexilevimofuze.pdfIn PDF document text
    • http://maremania.net/img_pagine/file/77312350047.pdfIn PDF document text
    • https://xogatavuk.weebly.com/uploads/1/3/4/6/134629599/luzujajaruwum-sewutuxaxiw-gonokoxa.pdfIn PDF document text
    • https://kirimanadawa.weebly.com/uploads/1/3/4/3/134383910/2095022.pdfIn PDF document text
    • https://www.soudeurs.com/libs/kcfinder/upload/files/79657432039.pdfIn PDF document text
    • https://nelajelax.weebly.com/uploads/1/3/2/7/132712676/tetitixamir.pdfIn PDF document text
    • http://erbaytag.com/resimler/files/zexogulowig.pdfIn PDF document text
    • https://mumunono.projetslimer.com/ressource/file/20680120662.pdfIn PDF document text
    • https://mannlicher.hu/admin/kcfinder/upload/files/91978726600.pdfIn PDF document text
    • https://sunapibabe.weebly.com/uploads/1/3/3/9/133999858/bedir-roxore-gifek-zomarerixef.pdfIn PDF document text
    • https://gamepasak.weebly.com/uploads/1/3/4/1/134109087/5538272.pdfIn PDF document text
    • https://nivunosanogerog.weebly.com/uploads/1/3/4/5/134516177/9dd115b2503.pdfIn PDF document text
    • https://colod.co.za/YmrXLWy8?keyword=snowball%20animal%20farm%20quotes%20quizletPDF link annotation
    • 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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000e38e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000e38e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e38e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE38E 10980 bytes
SHA-256: e7905b8420ffb30cf3ffe1b03892577aa052c621a6d765538dc22f28fcd2c766
font_01_sfnt_off0000fd28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD28 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001153a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1153A 17100 bytes
SHA-256: ce9b2c848c2a9f443c95474bcc58df23a7dec84f244b933856d0c6e4ed0ab573