Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5de022955c2afe2…

MALICIOUS

PDF

74.1 KB Created: 2022-04-26 15:42:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: f8cd9c6e9c2d1e03be668bce9cb635d2 SHA-1: a67caa9c21bb517da178aecae9efd35fcb13a7f6 SHA-256: c5de022955c2afe2809cf0681ecdb321af52d418426d7919124a01062cec3cf3
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://loheb.co.za/YmrXLWy8?keyword=how%20to%20recycle%20books%20london PDF link annotation
    • https://zekigoduse.weebly.com/uploads/1/3/4/3/134336209/debunasejezos.pdfIn PDF document text
    • https://vutajavegev.weebly.com/uploads/1/3/4/0/134040502/basejixogogukev.pdfIn PDF document text
    • https://zafolixoniwalo.weebly.com/uploads/1/3/5/9/135958226/vudutokumo_wanodapo_jelazurixo.pdfIn PDF document text
    • http://brunagabriele.it/userfiles/files/94248000765.pdfIn PDF document text
    • https://ijpdua.com/contents/files/sageziduloxixedov.pdfIn PDF document text
    • https://centralcms.coodex.net/galeria/files/8636874275.pdfIn PDF document text
    • http://czyxchem.com/upload/files/8732651197.pdfIn PDF document text
    • https://nulodikoz.weebly.com/uploads/1/3/2/7/132740439/47a2aca.pdfIn PDF document text
    • https://pufamubix.weebly.com/uploads/1/4/1/3/141324288/e9ae333a3.pdfIn PDF document text
    • https://datotizit.weebly.com/uploads/1/3/4/6/134696706/kopuzomos.pdfIn PDF document text
    • http://icloudcleaners.com/uploads/account/autoresponderfiles/dejemipeperob.pdfIn PDF document text
    • http://atem.sciara.eu/public/upload/file/95399971771.pdfIn PDF document text
    • http://tua-hatextiles.com/assets/ckeditor/kcfinder/upload/files/14620342848.pdfIn PDF document text
    • http://gradn.ru/uploades/fckeditorfile/68743883659.pdfIn PDF document text
    • https://cardolf.ro/files/rimoxevenu.pdfIn PDF document text
    • http://ornito-silesia.eu/userfiles/file/42440011525.pdfIn PDF document text
    • http://getem.eu/files/file/51163338122.pdfIn PDF document text
    • https://banijeweziwi.weebly.com/uploads/1/3/4/8/134873891/752e9c.pdfIn PDF document text
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/16254fa804ab43---bokixuw.pdfIn PDF document text
    • http://vhshf.de/File/87480820818.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bd98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD98 17068 bytes
SHA-256: 5059b6c7a6be31ee5df1967f1c977615cc15a6dc37830de545196212a356c46c
font_01_sfnt_off0000ea36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA36 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001024d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1024D 10532 bytes
SHA-256: c307d4da94e7102e3f2690cac8e4fc07a8b38f1f383a08004c2724843cfa42c3

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