Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc09dcea768abd9…

MALICIOUS

PDF

74.0 KB Created: 2021-11-30 13:47:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 673fb7927d80f8f9ba36488e6d295395 SHA-1: 882e281f02c4b733da3019ae56ce4a83184f3464 SHA-256: 3bc09dcea768abd938d94ca34c444e013b1fc878aed46812b324a8c79c09afe6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

Heuristics 5

  • 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 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://masukpt2.com/contents/files/79169376439.pdf In PDF document text
    • http://haenuri.net/ckupload/files/toleb.pdfIn PDF document text
    • http://519pf.com/userfiles/files/lopuzu.pdfIn PDF document text
    • http://lamgi.pl/ckfinder/userfiles/files/weropimujudatigid.pdfIn PDF document text
    • http://sdtr.mdrap.ro/fckeditor/uploads/file/23136020161.pdfIn PDF document text
    • https://dichvumayphoto.vn/webroot/img/files/49261879263.pdfIn PDF document text
    • http://trinkhorn.org/userfiles/33666895543.pdfIn PDF document text
    • http://noithatmyhome.com/img/files/27497947656.pdfIn PDF document text
    • https://namhunglogistic.vn/site/files/38946385751.pdfIn PDF document text
    • http://ohana1bbq.com/uploads/files/3074806172.pdfIn PDF document text
    • https://xn--80aaijz0c.xn--p1ai/ckfinder/userfiles/files/53614075444.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16194cbdd718b8---15075505181.pdfIn PDF document text
    • https://fajanav.com/aym_image/files/tuwutu.pdfIn PDF document text
    • https://nitm.ac.in/nitmeghalaya/ckfinder/userfiles/files/31635104366.pdfIn PDF document text
    • https://gesema.com/UserFiles/file/29712930480.pdfIn PDF document text
    • http://gostinica-domodedovo.ru/files/79234603991.pdfIn PDF document text
    • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16170c861aaeb6---pumewagedodimolof.pdfIn PDF document text
    • http://ck-kutnahora.cz/gais/image/file/284962639.pdfIn PDF document text
    • http://doorsatyrau.com/ckfinder/userfiles/files/boboxaj.pdfIn PDF document text
    • http://statsale.com/data/upload/ck/files/71562324346.pdfIn PDF document text
    • https://www.oalysa.cz/ckfinder/userfiles/files/zudixijasujeze.pdfIn PDF document text
    • http://henghuitong.com/jingkelun/userfiles/files/20211003190910.pdfIn PDF document text
    • http://kristiankutschera.de/userfiles/file/polurenidedi.pdfIn PDF document text
    • http://jhdjt.com/images/upload/File/dugusubofakugeduvejo.pdfIn PDF document text
    • http://aotem.com/data/home/qxu1780220113/htdocs/uploadfile/files/22878783806.pdfIn PDF document text
    • http://cosmikkino.ru/sadm_files/jaton.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/4dZi1sgP-vI/uplcv?utm_term=scat+test+sample+questions+2nd+gradePDF 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_off0000b736.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b736.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b736.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB736 11300 bytes
SHA-256: 7731ff0ae3184da6cb61f5ca0116d86a1d0728aef2544a984029fa5a929f5f55
font_01_sfnt_off0000d134.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD134 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0000e7d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7D3 18816 bytes
SHA-256: f5110a45d6e7e112b820d9f35c6968cee62d225b83fc57bb809d2ad9849ddd60