Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d81a31cb3ac0848…

MALICIOUS

PDF

66.3 KB Created: 2022-04-07 12:22:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 666f8e782149cfeb8c46b970eac9330d SHA-1: b9fbdf96bcf8a4db07dd8121e7a33cd4d6230378 SHA-256: 5d81a31cb3ac0848cc85f192832ba9261ef751442b9eb53c2aa222633d0a994d
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://wirut.co.za/YmrXLWy8?keyword=power%20wheels%20jeep%20hurricane%20price PDF link annotation
    • http://ranchobg.com/img/file/tizeroz.pdfIn PDF document text
    • http://look.bio/kcfinder/upload/files/13265909648.pdfIn PDF document text
    • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1622b1e7c1f5e1---13252735820.pdfIn PDF document text
    • http://jogastudioveszprem.hu/kcfinder/upload/files/74319450530.pdfIn PDF document text
    • http://gps-tw.com/CKEdit/upload/files/pejox.pdfIn PDF document text
    • https://vadanidubaseb.weebly.com/uploads/1/3/6/0/136089859/wowivutixafu-meziwa-kakovofoxesi-pobawojomu.pdfIn PDF document text
    • https://vowabogebem.weebly.com/uploads/1/3/0/7/130775978/nilige.pdfIn PDF document text
    • https://nitibikom.weebly.com/uploads/1/4/1/3/141372781/97d2a76d.pdfIn PDF document text
    • https://medcogulf.com/uploads/file/24470108068.pdfIn PDF document text
    • https://tonudekosinin.weebly.com/uploads/1/3/4/6/134685286/sedigofozekobefesi.pdfIn PDF document text
    • https://vifesomojijafi.weebly.com/uploads/1/3/4/3/134337648/populana-xitabuvawa-tasalo.pdfIn PDF document text
    • http://rent-lease-no1.com/userfiles/file/20220322194941.pdfIn PDF document text
    • https://texitanoz.weebly.com/uploads/1/3/0/7/130739996/a0d87b05d0f.pdfIn PDF document text
    • https://sakojokotinij.weebly.com/uploads/1/3/1/3/131379540/2ceab0d5cb0f.pdfIn PDF document text
    • http://esteticka-stomatologie.cz/files/content/file/sabav.pdfIn PDF document text
    • https://zelidewa.weebly.com/uploads/1/3/4/3/134371532/287728.pdfIn PDF document text
    • https://tubolapibakosi.weebly.com/uploads/1/3/4/8/134872187/8d09bfe577d.pdfIn PDF document text
    • https://rubuvewoxuvima.weebly.com/uploads/1/3/4/8/134873715/sadefosupage_kadimarujon_widibefiv.pdfIn PDF document text
    • https://wagalivo.weebly.com/uploads/1/3/0/8/130814328/5150425.pdfIn PDF document text
    • https://nigovazimosa.weebly.com/uploads/1/3/4/6/134636686/e2377676.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_off00009ecc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ECC 16916 bytes
SHA-256: 666174c6eb7a7de9d5aaa585d3946810b3b31046176e248ff7890d6d9f34a073
font_01_sfnt_off0000caf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAF4 10688 bytes
SHA-256: 37209fe636f9ae22a8e1294487c5800222983cecbb2afc31df06660cecd45c01
font_02_sfnt_off0000e374.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE374 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.