Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f79aba7146bc54…

MALICIOUS

PDF

79.6 KB Created: 2022-03-28 11:31:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: bb388247b2e0b2737ae1f586874903e2 SHA-1: 10e51a7fe6727eef93d0f10c5b179b4ad0062bf6 SHA-256: a4f79aba7146bc54bec853499e248ed0fb5545cdd05e478e59b401073310e6af
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 7

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://ragaz.co.za/YmrXLWy8?keyword=kindle%20keyboard%20frozen%20won PDF link annotation
    • https://divojalu.weebly.com/uploads/1/3/4/6/134664609/jebapugakav.pdfIn PDF document text
    • https://zedixajo.weebly.com/uploads/1/3/4/3/134363751/fejifekelovup-vawabof-luzopigexu.pdfIn PDF document text
    • https://gipasutojemozup.weebly.com/uploads/1/3/1/3/131379868/ea108def8b1.pdfIn PDF document text
    • https://guxanavos.weebly.com/uploads/1/3/4/2/134235011/1356953.pdfIn PDF document text
    • https://vufixedita.weebly.com/uploads/1/3/4/8/134884828/vuwuvuge.pdfIn PDF document text
    • https://biwulijek.weebly.com/uploads/1/3/4/5/134500127/9007bc9e8ce.pdfIn PDF document text
    • https://lulunanozox.weebly.com/uploads/1/3/4/5/134598725/305514.pdfIn PDF document text
    • https://zukevijidogokil.weebly.com/uploads/1/3/0/7/130738647/e47b8ea.pdfIn PDF document text
    • https://toripifisesu.weebly.com/uploads/1/3/4/3/134367164/mipizumajokijaxajer.pdfIn PDF document text
    • https://solemadu.weebly.com/uploads/1/3/4/4/134486709/winemulugusemelaruka.pdfIn PDF document text
    • https://sosepokapebovi.weebly.com/uploads/1/3/0/8/130814645/1c4bb3b412.pdfIn PDF document text
    • https://fofavaduk.weebly.com/uploads/1/3/4/4/134436242/035c07fa04c5d94.pdfIn PDF document text
    • https://mibugekokedepi.weebly.com/uploads/1/3/2/6/132682655/8357193.pdfIn PDF document text
    • https://berovifis.weebly.com/uploads/1/3/4/7/134730871/tuvifimumikesu.pdfIn PDF document text
    • https://wuwiniwar.weebly.com/uploads/1/4/1/2/141218285/a9953d.pdfIn PDF document text
    • https://nisuwifa.weebly.com/uploads/1/3/1/4/131453943/dikisofasa_faxaropom_minilebegadil.pdfIn PDF document text
    • https://mibelovo.weebly.com/uploads/1/3/4/6/134608705/fatoxiriwoguzolisi.pdfIn PDF document text
    • https://sezokifor.weebly.com/uploads/1/3/4/5/134596047/pusejexobimexe.pdfIn PDF document text
    • https://namodezax.weebly.com/uploads/1/3/6/0/136055978/nuditifafekome_dadufelok.pdfIn PDF document text
    • https://samituvejasuw.weebly.com/uploads/1/3/1/4/131406365/poxejap.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_off0000c8fd.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c8fd.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c8fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8FD 10864 bytes
SHA-256: eb5f5dbaa7df22e6bee3242eb76b5203d4a76780a0969e0d92ab89192925663a
font_01_sfnt_off0000e247.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE247 2644 bytes
SHA-256: 53bd6a386e813ea4d0cf5c62f5dcb77c6a92d993a5f5e81b12db168f998abd00
font_02_sfnt_off0000ed5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED5A 16828 bytes
SHA-256: 66523af61b4556400ef6c560d9e77590e3d00bb54c94d9d0ede5d2006b736930
font_03_sfnt_off00011946.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11946 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336