Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de8228d7e942c48…

MALICIOUS

PDF

78.1 KB Created: 2022-03-29 19:50:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: 14a0ddc668b59ca93d5dc1561aef3176 SHA-1: 7c0df6ce5a9dc71383cf94e03f2ba29587cc646b SHA-256: 4de8228d7e942c486739cb49c1d413245c8bf4257b1eb80e2c6453b474359c50
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://tajudazu.weebly.com/uploads/1/3/4/3/134328852/3295073.pdf In PDF document text
    • https://susudomi.weebly.com/uploads/1/3/5/3/135319884/18ee162a3389.pdfIn PDF document text
    • https://moxusovilala.weebly.com/uploads/1/3/0/7/130738705/e583000c7e5dba1.pdfIn PDF document text
    • https://bp-con-esh.com/kcfinder/upload/files/58915307910.pdfIn PDF document text
    • https://wuvesemoni.weebly.com/uploads/1/3/4/3/134335409/susofupejasivowapop.pdfIn PDF document text
    • http://mebel-moscow.com/content/xuploadimages/file/95013565900.pdfIn PDF document text
    • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/1621710ab3e956---64217468623.pdfIn PDF document text
    • https://solturism.ro/images/file/71846872895.pdfIn PDF document text
    • https://satufimitu.weebly.com/uploads/1/3/4/7/134715308/losulo-xebuvisumomidok-wunux-rupezaje.pdfIn PDF document text
    • https://www.prashantgroup.com/admin/kcfinder/upload/files/6753460396.pdfIn PDF document text
    • http://chronocertif.com/userfiles/file/84771588472.pdfIn PDF document text
    • https://hujanuang.com/contents/files/6824231838.pdfIn PDF document text
    • https://bumaxaxup.weebly.com/uploads/1/3/4/2/134235918/vexupanutulituxuze.pdfIn PDF document text
    • http://acm-medicali.it/userfiles/files/tezipagepuma.pdfIn PDF document text
    • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1624276ba34d94---mumezaredomopuw.pdfIn PDF document text
    • https://xafasujogi.weebly.com/uploads/1/3/4/3/134374351/fotikotezosusojiji.pdfIn PDF document text
    • https://generixa.weebly.com/uploads/1/3/5/3/135350481/a4ffdd3.pdfIn PDF document text
    • https://sirawosoze.weebly.com/uploads/1/3/0/7/130776152/5fd7b.pdfIn PDF document text
    • http://kiddeefire.com/media/userfiles/files/vakavinumadefes.pdfIn PDF document text
    • http://le-nora.com/userfiles/file/55999884612.pdfIn PDF document text
    • https://tevav.co.za/YmrXLWy8?keyword=what%20does%20e4%20mean%20on%20accu%20chek%20meterPDF link annotation
    • 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_off0000cd16.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cd16.bin)

Related samples 2

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_off0000cd16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD16 17444 bytes
SHA-256: 7f3147c88fbfabab4fe3018ed928ebe7eeaf4a88d8f8c5c528e970a931123833
font_01_sfnt_off0000fb1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB1D 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000111c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111C1 10760 bytes
SHA-256: a6ff9e4afed934b08d419e9ec7c931d7d5c74feb15502ae1e0e045a3d05298b5

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