Malicious PDF — malware analysis report

Static analysis result for SHA-256 88bf35d536623856…

MALICIOUS

PDF

82.2 KB Created: 2022-05-15 00:50:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 248b393e631cd9ac3d9297d0cba67946 SHA-1: 1fe71372c0206f0743b7fa039a09cb8a4b553f07 SHA-256: 88bf35d5366238561fa95b2dbd7f73816b1fc35676d7e61cfd5883fd01aba706
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://tevav.co.za/YmrXLWy8?keyword=studio%20ghibli%20piano%20medley%20sheet%20music%20online%20music%20free PDF link annotation
    • http://netcentricnj.com/ckfinder/userfiles/files/suwuzavuvizuzotogafu.pdfIn PDF document text
    • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/1625240441b756---dinizabedavevonus.pdfIn PDF document text
    • http://mehmetrasimmutlu.com/icerik/file/85284787718.pdfIn PDF document text
    • https://xofoxinef.weebly.com/uploads/1/3/0/8/130874051/suwaxufoze.pdfIn PDF document text
    • http://ministryofrum.com/memlogos/file/kuxuliw.pdfIn PDF document text
    • https://www.oabrn.org.br/2017/_ups/files/files/vuladubitakegovuruwe.pdfIn PDF document text
    • https://gamabisage.weebly.com/uploads/1/3/2/6/132681080/zuxowodufoza.pdfIn PDF document text
    • http://www.korsun.ic.ck.ua/js/kcfinder/upload/files/45833249242.pdfIn PDF document text
    • http://allergyc.news-read.com/upload/files/52915676166.pdfIn PDF document text
    • https://penituxumotifut.weebly.com/uploads/1/4/1/6/141617494/5991470.pdfIn PDF document text
    • https://minazunanuvisim.weebly.com/uploads/1/3/4/6/134666394/6391355.pdfIn PDF document text
    • http://retroscope.menu-card-maker.com/uploads/files/zagamuru.pdfIn PDF document text
    • https://sidafixeruj.weebly.com/uploads/1/3/2/6/132681612/8339192.pdfIn PDF document text
    • http://globalbizkorea.com/userData/board/file/befodobopilegogaru.pdfIn PDF document text
    • http://uchid.com/uploads/file/kozuzolosujatifogadofi.pdfIn PDF document text
    • https://zuxafeduf.weebly.com/uploads/1/3/4/6/134626046/45033.pdfIn PDF document text
    • https://surugatolezijef.weebly.com/uploads/1/3/4/6/134631687/e25accdf.pdfIn PDF document text
    • http://madervaf.com/admin/kcfinder/upload/files/xeveseposoxawavezel.pdfIn PDF document text
    • https://ropujumidud.weebly.com/uploads/1/3/1/4/131406541/zijiza_gesakokepusaj_sifexi_donon.pdfIn PDF document text
    • https://kodepifaz.weebly.com/uploads/1/3/4/7/134705681/635504.pdfIn PDF document text
    • https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fc6b918fa87---97730053887.pdfIn PDF document text
    • https://kudoxere.weebly.com/uploads/1/3/4/5/134591480/1410579.pdfIn PDF document text
    • http://shmgec.com/Uploadfiles/files/lirijegotawesopisosiduk.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_off0000d8ca.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d8ca.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d8ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8CA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f0e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E1 11496 bytes
SHA-256: e2d5289e8d50b48350769c0f4cfb97ab5c1b439521d0ad24f4ee799cbbe02919
font_02_sfnt_off00010b75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B75 17992 bytes
SHA-256: 1ecc490bdbbfd7c0b89d55267a98fdcb75eb7162a4d8f202c095fed9e8cf01af