Malicious PDF — malware analysis report

Static analysis result for SHA-256 89f729b362c159f6…

MALICIOUS

PDF

70.4 KB Created: 2022-03-31 04:47:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-01
MD5: 1e579c86775cf0bf73ad4274f80873c2 SHA-1: f1a9a43a39f4ac3129a717aa3caf866ee0245ad1 SHA-256: 89f729b362c159f6d29f34446538fefde4861bd0e9835483dee8b8fd5843535e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://colod.co.za/YmrXLWy8?keyword=how%20sugar%20changed%20the%20world%20audiobook PDF link annotation
    • http://bthg.bagwfbm.de/upload/files/zozuzelalotijazo.pdfIn PDF document text
    • https://pimazapodozem.weebly.com/uploads/1/3/2/8/132814260/36f822333b8c5b.pdfIn PDF document text
    • http://gerastar.com/userfiles/file/judoxogogebi.pdfIn PDF document text
    • https://ibexquimica.com.br/ckfinder/userfiles/files/20212261423.pdfIn PDF document text
    • https://tybistanbul.org/resimler/files/3522516014.pdfIn PDF document text
    • https://dovesexafonom.weebly.com/uploads/1/3/4/7/134702519/2313085.pdfIn PDF document text
    • https://werudugin.weebly.com/uploads/1/3/0/8/130873895/2591784.pdfIn PDF document text
    • http://zenobiacultura.it/userfiles/file///36785752951.pdfIn PDF document text
    • https://bofanowowedo.weebly.com/uploads/1/3/4/5/134506880/fb20343.pdfIn PDF document text
    • https://zowagozu.weebly.com/uploads/1/3/4/4/134404721/4705829.pdfIn PDF document text
    • https://puxomesepose.weebly.com/uploads/1/3/5/9/135977076/2054592.pdfIn PDF document text
    • https://xafadefuvabajil.weebly.com/uploads/1/3/0/7/130776308/e85e269.pdfIn PDF document text
    • https://baxodibidixajit.weebly.com/uploads/1/3/5/3/135311382/4319173.pdfIn PDF document text
    • https://jokiwuruxuwam.weebly.com/uploads/1/3/1/4/131437523/xixijopa.pdfIn PDF document text
    • https://jebezowurexa.weebly.com/uploads/1/3/4/5/134576847/kiduxavuseluxipujulo.pdfIn PDF document text
    • https://rizulibix.weebly.com/uploads/1/3/4/3/134358491/d7c2ae6a26.pdfIn PDF document text
    • https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/488cae5f540b65bdd763f501e8af505f/xuzipigu.pdfIn PDF document text
    • https://suxokigivulumu.weebly.com/uploads/1/3/4/4/134479742/zexebiziperop.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1622bad0507cd4---23181886727.pdfIn PDF document text
    • https://vebaduxop.weebly.com/uploads/1/3/5/3/135327545/938687.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_off0000af0c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000af0c.bin)
🗂 Part of campaign: gerastar.com 3 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000af0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF0C 17248 bytes
SHA-256: c9eec9da95061e361f6aa1a04eb21bbcf07d0e1cab30836d9b0cbf4ed0c9cbf5
font_01_sfnt_off0000dc46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC46 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0000f2ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2EA 11060 bytes
SHA-256: 40a122951f6d64b5957defbeb0b65baa95da56edaf77ea9f88bc461ecc8c5f04