Malicious PDF — malware analysis report

Static analysis result for SHA-256 72bb9144d3aab9a9…

MALICIOUS

PDF

82.5 KB Created: 2021-10-08 17:46:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: db5b9a5e42fd259539beb1cdb13b1b38 SHA-1: 4ddb4d01ba57099fece9e90efb4000e1ab5e823d SHA-256: 72bb9144d3aab9a9ae6f1555ba7de7a9f4ff4edc5e99314480cf14d356cbbfcf
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://krisoc.ru/uplcv?utm_term=can+i+use+a+windows+laptop+as+a+second+monitor+for+mac PDF link annotation
    • https://umutfm.com/resimler/files/kodixogowelipuzupapu.pdfIn PDF document text
    • http://www.gpe-el.pro/ckfinder/userfiles/files/91482203130.pdfIn PDF document text
    • http://olsztyntransportmedyczny.pl/userfiles/file/wularidufilarumejewo.pdfIn PDF document text
    • http://papinchess.ru/userfiles/file/10642824904.pdfIn PDF document text
    • http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/zofokikubodifuxetokadudo.pdfIn PDF document text
    • http://yoga-privates.com/yoga-privates/file/zujigenolulekofugulu.pdfIn PDF document text
    • http://wksx.top/images/userfiles/file/rulomon.pdfIn PDF document text
    • http://w.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/timutarewuluxapipepuba.pdfIn PDF document text
    • http://burelomdo.com/ckfinder/userfiles/files/76044888812.pdfIn PDF document text
    • http://kemmurad.com/webroot/img/files/pemenifuwefijab.pdfIn PDF document text
    • https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/637fe06c614348529308ed7e1976c124/loguxu.pdfIn PDF document text
    • http://sogelec-eng.com/files/ckfinder/files/31517292495.pdfIn PDF document text
    • http://noithatdangcap.vn/app/webroot/uploads/files/pijutujutilereboze.pdfIn PDF document text
    • https://brs.jo/userfiles/files/bipanatururukadaw.pdfIn PDF document text
    • http://avrig35.ro/uploads/fck_editor/file/68432263973.pdfIn PDF document text
    • http://onestep-tokyo.com/userfiles/file/65015774661.pdfIn PDF document text
    • http://transcash.com/ci/userfiles/files/12975551537.pdfIn PDF document text
    • http://barrospizzadb.com/uploads/files/misamegigipukewilizavemox.pdfIn PDF document text
    • http://csc0898.com/userfiles/file/20210902182258_4clawd.pdfIn PDF document text
    • http://kipia-nn.ru/userfiles/file/54505734928.pdfIn PDF document text
    • https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/228abe40e56f0585d39b5fada77486d3/jililufirakuvufug.pdfIn PDF document text
    • https://devismesport.fr/userfiles/file/zibovepe.pdfIn PDF document text
    • http://wooshin.kr/uploaded/file/7128527066151afda896d8.pdfIn PDF document text
    • http://xn--xhq021fvrwdth.com/d/files/lavodir.pdfIn PDF document text
    • https://mysilo.com/upload/ckfinder/files/86524546327.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_off0000db04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB04 17960 bytes
SHA-256: ad4f5327bce836c15ed2011b123d9652c8951ec528a64383e4560f4c62b70404
font_01_sfnt_off000109ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109AE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000121c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121C5 10996 bytes
SHA-256: 82548eaa8e8d821f6fe00a99f62b9a87bb0ed366136e617fc5059c3a5276e60f

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