Malicious PDF — malware analysis report

Static analysis result for SHA-256 88bbe89d8dcdc76e…

MALICIOUS

PDF

109.8 KB Created: 2021-09-18 17:51:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: b3320e958d30c6d0efae8f2d4dacfe37 SHA-1: 69fca9598478192e24be98e2c2438b858e2f800a SHA-256: 88bbe89d8dcdc76e66523904f20cba73eb3c70ffce0c0a1449eb1142b92394bb
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://archism.ru/uplcv?utm_term=romantic+movies+2020+full+movie+english PDF link annotation
    • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161434cb152929---38993331855.pdfIn PDF document text
    • https://valve-toho.com/userfiles/file/2679013771.pdfIn PDF document text
    • http://architettorobertafasola.eu/userfiles/files/29535614852.pdfIn PDF document text
    • http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16139bc0529ba0---24782881150.pdfIn PDF document text
    • http://onnetsolution.in/userfiles/file/92540222399.pdfIn PDF document text
    • http://elard-group.com/ckfinder/userfiles/files/68337412526.pdfIn PDF document text
    • https://mkart.it/uploads/file/29405522626.pdfIn PDF document text
    • https://masukpt1.com/contents/files/nafidonorupap.pdfIn PDF document text
    • http://kaus21.com/userData/board/file/solotosesipumow.pdfIn PDF document text
    • https://aadhaarretail.com/administrator/imagetemp/file/takepopezoga.pdfIn PDF document text
    • http://ateliergermain.org/sites/default/files/file/86957892128.pdfIn PDF document text
    • http://omegapizza.net/uploads/files/tafekigupezivowexa.pdfIn PDF document text
    • http://interface-referencement.com/userfiles/file/63115045314.pdfIn PDF document text
    • http://kystar.net/filespath/files/20210917110959.pdfIn PDF document text
    • https://506hlapeta.com/files/file/55028708955.pdfIn PDF document text
    • http://mmbc.cz/_data/user_files/file/sofajuzipubusururosele.pdfIn PDF document text
    • http://www.yoko-ono.be/images/userfiles/file/10357181001.pdfIn PDF document text
    • http://pneusmarene.it/images/file/47354186421.pdfIn PDF document text
    • http://njuhome.pl/ckfinder/userfiles/files/65020181388.pdfIn PDF document text
    • https://castilloexterior.es/ckfinder/userfiles/files/kedinodanosun.pdfIn PDF document text
    • https://bibliotheque-des-arts.ch/ckfinder/userfiles/files/joresiba.pdfIn PDF document text
    • http://dayou.tw/uploadpic/files/202109101047487835.pdfIn PDF document text
    • http://congtyvima.com/images/Download/75324190830.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_off0001453a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001453a.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001453a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1453A 19236 bytes
SHA-256: c55d9d561883b8ae6201e07f2af308db3c14bf07f0acd84df348b05832ce6c58
font_01_sfnt_off00017715.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17715 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00018f2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18F2C 11136 bytes
SHA-256: 075b19eaafeab8e3059424a2a923b9fef5ce5118d8c4a94f783f1d8b2d8e5ff1

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