Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8e8a7a1d34f0ca…

MALICIOUS

PDF

134.5 KB Created: 2022-05-18 01:37:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 679046a70cb7a0189293664838e6b08a SHA-1: f2dd1f3d39781e433159e216d5a09251e1567046 SHA-256: aa8e8a7a1d34f0ca9f2a24c34d8b1917ce9766dac64a27aaa3cf4599725d580d
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://podar.co.za/YmrXLWy8?keyword=econometrics%20exam%20cheat%20sheet%202019%20printable%202017%202018 PDF link annotation
    • http://www.vycvikpreziti.cz/upload/files/57255710996.pdfIn PDF document text
    • https://sibanozaniso.weebly.com/uploads/1/3/4/8/134858677/b49a85c38e88.pdfIn PDF document text
    • https://bovikurowuzi.weebly.com/uploads/1/4/1/5/141501405/sebodaw.pdfIn PDF document text
    • https://wiwoxedanin.weebly.com/uploads/1/3/4/0/134012493/8f72bc47a9.pdfIn PDF document text
    • https://mindtrainingsystems.com/userfiles/file/10331425901.pdfIn PDF document text
    • http://atem.sciara.eu/public/upload/file/xonopujenegebatozizuwo.pdfIn PDF document text
    • https://xisudujerixaxir.weebly.com/uploads/1/3/4/5/134583325/8836968.pdfIn PDF document text
    • https://tommytest.dish1314.com/data/html_editor/files/62168255677.pdfIn PDF document text
    • http://kcemsp.org/upload/editor/file/rabefave.pdfIn PDF document text
    • http://ydchem.cn/filespath/files/20220515185257.pdfIn PDF document text
    • https://998.geektic.com/geektic/files/xiputenizi.pdfIn PDF document text
    • https://duzufeto.weebly.com/uploads/1/3/4/7/134734580/7382617.pdfIn PDF document text
    • https://tetujefewil.weebly.com/uploads/1/4/1/3/141376128/8593928.pdfIn PDF document text
    • https://xilemuje.weebly.com/uploads/1/3/4/2/134265988/jemidiwalusa.pdfIn PDF document text
    • http://www.nbc.com.vn/ckfinder/userfiles/files/jazojexeluxetaxusaxapewek.pdfIn PDF document text
    • https://bawilawuvibowe.weebly.com/uploads/1/3/4/4/134401702/gabeg.pdfIn PDF document text
    • https://lurenejaxerugu.weebly.com/uploads/1/3/4/7/134728533/8602852.pdfIn PDF document text
    • http://goupcrm.com.br/kcfinder/upload/files/zujojewifavix.pdfIn PDF document text
    • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/to6otq2eik00ndmle8fipb9vtn/suzazuralanutinufenevuba.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001a56b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A56B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001bd7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BD7D 18768 bytes
SHA-256: 32c8d1c887efa33af1e23c333e188fb8a98eb29eccd40a240166455c000a2ff0
font_02_sfnt_off0001ee6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1EE6A 11584 bytes
SHA-256: e34344092266f68ab65b62266ab25f4afdf77f22cccb4c68996007888c0b83af

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