Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b37e5e43ff0222…

MALICIOUS

PDF

122.1 KB Created: 2021-12-18 21:44:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 44cf6e6e8ca80fee339ea048421c965e SHA-1: 81dacc5e4aa5196cfdb694ff1d19420d32de4398 SHA-256: 72b37e5e43ff0222cd0fb5bb4d07cc403cc4249257a55cc876562515317307e6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

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://millinerandassoc.com/files/file/77548151360.pdf In PDF document text
    • http://carszana.com/image/upload/File/romesopopa.pdfIn PDF document text
    • https://psfund.org/public/uploads/files/cms_files/zonal.pdfIn PDF document text
    • http://machinesupplier.cn/data/product/file/20211211_52257_628.pdfIn PDF document text
    • https://keongracun.org/contents/files/6726344482.pdfIn PDF document text
    • http://mn-print.ru/ckfinder/userfiles/files/24618509432.pdfIn PDF document text
    • http://eapver.com/upload/ckimg/files/202111150854378553.pdfIn PDF document text
    • https://tylbm.com/Upload/ckeditor/files/63839131682.pdfIn PDF document text
    • https://mudrun.com/home/mud/public_html/ckfinder/userfiles/files/xofufajukemakonoxado.pdfIn PDF document text
    • http://liburnia.pl/userfiles/file/74820023382.pdfIn PDF document text
    • http://nissanotogovap.vn/uploads/images/files/66568834218.pdfIn PDF document text
    • http://zeminyerkaplama.com/upload/ckfinder/files/fixenogusupowubegokure.pdfIn PDF document text
    • https://solener.info/ckfinder/userfiles/files/77422203993.pdfIn PDF document text
    • http://dywin.com/uploadfile/files/46884249523.pdfIn PDF document text
    • https://thic.muki001.com/plugin/ce1/ckfinder/userfiles/files/nomabibuxamuligomiwed.pdfIn PDF document text
    • https://saksisan.com/upload/ckfinder/files/93159999163.pdfIn PDF document text
    • http://tomrerjm.server2.dk/userfiles/file/zajavokipaxujaratelolu.pdfIn PDF document text
    • http://njbrilliantsolar.com/userfiles/file/8390927349.pdfIn PDF document text
    • http://kstarsmall.net/userfiles/file///pofebirefupokaw.pdfIn PDF document text
    • http://market-oborudovanie.ru/upload/file/larobexetodexinogonub.pdfIn PDF document text
    • http://xn--c1ajalgzu0a.xn--p1ai/userfiles/file/38180040703.pdfIn PDF document text
    • http://studiotecnicomaglio.it/userfiles/files/modexe.pdfIn PDF document text
    • https://korankertas.com/contents/files/18512009217.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/TxADE9PCSUw/uplcv?utm_term=samsung+rf263beaesr+force+defrost+modePDF 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 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_off00017694.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17694 11456 bytes
SHA-256: 88a6178a2f6b491aee1e38516d11ce115f7e02d1544e189b7a9a35a741eb18df
font_01_sfnt_off0001917d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1917D 19276 bytes
SHA-256: 45786d33faeebfeb691ef0102b5aa8f717772c5b4bea14f4393201bc763f9832
font_02_sfnt_off0001c3e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C3E1 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336

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