Malicious PDF — malware analysis report

Static analysis result for SHA-256 18aabb1bc7f95974…

MALICIOUS

PDF

76.1 KB Created: 2022-04-19 23:33:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: 38ef2779b93f8c4c0895becb6aa54e1a SHA-1: df40c4ef8fa3014baac367181ce2d2a934741dcc SHA-256: 18aabb1bc7f95974bed49ed6ac0d135e02ca7a3e2d3ecd1e22b9c23748491613
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://yubit.co.za/YmrXLWy8?keyword=american%20army%20enlisted%20rank%20insignia%20icons PDF link annotation
    • http://studiogaleazzo.eu/userfiles/files/dogej.pdfIn PDF document text
    • http://namaslennikova.ru/kcfinder/upload/files/sesana.pdfIn PDF document text
    • https://fogunato.weebly.com/uploads/1/4/1/3/141328275/396d80e.pdfIn PDF document text
    • https://xenoxitirup.weebly.com/uploads/1/3/4/3/134324472/saresufak.pdfIn PDF document text
    • https://maisonforville.be/documents/file/texodozuxusapu.pdfIn PDF document text
    • https://lolaxasima.weebly.com/uploads/1/3/4/7/134747116/jakabug-vorezib-japelisa.pdfIn PDF document text
    • https://xepekozodixati.weebly.com/uploads/1/3/5/3/135346226/5478383.pdfIn PDF document text
    • https://vobinuxidixuf.weebly.com/uploads/1/3/4/4/134471365/3d8bb8d0.pdfIn PDF document text
    • https://maxanijalezo.weebly.com/uploads/1/3/2/3/132303118/c38e2ec95d194d.pdfIn PDF document text
    • https://judobujipukipaz.weebly.com/uploads/1/3/5/3/135300584/febumegiwum.pdfIn PDF document text
    • https://boviseweduxiraz.weebly.com/uploads/1/3/0/7/130776594/wufimaneto.pdfIn PDF document text
    • http://hotdeals24x7.com/ci/userfiles/files/13155932222.pdfIn PDF document text
    • http://garoli.com.br/js/kcfinder/upload/files/mazufo.pdfIn PDF document text
    • https://murarukaxew.weebly.com/uploads/1/3/4/6/134666391/1235038.pdfIn PDF document text
    • http://gerd-pollak.de/userfiles/file/wiwomixime.pdfIn PDF document text
    • https://nepimofuniwud.weebly.com/uploads/1/3/4/5/134508881/7118495.pdfIn PDF document text
    • https://junezafebu.weebly.com/uploads/1/3/0/8/130874287/nozojitoxeragizazid.pdfIn PDF document text
    • https://esoft.com.bd/assets/ckeditor/kcfinder/upload/files/dumezuzuliwazanowatax.pdfIn PDF document text
    • http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161ff70adb8300---wozagamonisirabiwavagebuw.pdfIn PDF document text
    • https://jimusojimewem.weebly.com/uploads/1/3/5/3/135351043/vafiwulu.pdfIn PDF document text
    • http://21cedu.com/pds/userfiles/files/ligop.pdfIn PDF document text
    • https://nevonanopovew.weebly.com/uploads/1/3/4/3/134335048/137e4a.pdfIn PDF document text
    • https://nakumupapetiz.weebly.com/uploads/1/3/2/7/132741615/teregoxakurakiwokere.pdfIn PDF document text
    • https://kekisadubivef.weebly.com/uploads/1/3/3/9/133986731/kosabejipugifo.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 extracted file (font_00_sfnt_off0000c44f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c44f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c44f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC44F 16904 bytes
SHA-256: b2d2967d5a370ca00054f928c31f50c8493c08b03e55852d6bf625d50a7a5f50
font_01_sfnt_off0000f0a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0A3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000108ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108BA 10900 bytes
SHA-256: 32160e7e6e1192b7a5bb8d1780e848ac16bf0a0c4f0fc136af5a165135381d0a