Malicious PDF — malware analysis report

Static analysis result for SHA-256 02032a12205350f1…

MALICIOUS

PDF

65.1 KB Created: 2021-09-24 11:01:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 20d93eb3ed9803b2c4b3b2a743330dab SHA-1: deda5dc56e17c8729ed2d31ff5a6d89fbb27d16f SHA-256: 02032a12205350f1d3252024bb35085d1bc5d6b63c48669a8d19303efa12257a
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected by ClamAV as Pdf.Phishing.Trojan. Static analysis revealed numerous embedded URLs, many pointing to disposable hosting, indicating a link farm designed to distribute malicious content or phish for information. The PDF's structure and the presence of external URIs suggest it's part of a phishing campaign, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4625

Heuristics 4

  • 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
  • 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://smidgel.ru/uplcv?utm_term=t%C3%BCrkler+geliyor+full+movie+english+subtitles PDF link annotation
    • https://medarbindia.org/ckfinder/userfiles/files/98701816912.pdfIn PDF document text
    • https://www.artikel238.nl/emmwebbit/resources/ckfinder/userfiles/files/jopejisereguxut.pdfIn PDF document text
    • http://eaas-journal.org/survey/userfiles/files/vafimileradekiwad.pdfIn PDF document text
    • http://dpsszczytno.pl/photo/file/73211083447.pdfIn PDF document text
    • http://byecook.com/ckupload/files/13728837899.pdfIn PDF document text
    • https://cristalensi.com/public/File/zekafo.pdfIn PDF document text
    • http://rungruangsteel.com/public/upload/userfiles/files/gupepoxudi.pdfIn PDF document text
    • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130927cabcf2---wuwejufun.pdfIn PDF document text
    • http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/161363a177ae2d---54586426385.pdfIn PDF document text
    • https://ourlady-schools2.com/userfiles/files/81400574200.pdfIn PDF document text
    • https://etre-cheval.fr/Applications/MAMP/htdocs/etre%20cheval/news_pix/file/67247698704.pdfIn PDF document text
    • https://408of53crownstreet.com/assets/media/files/44955061940.pdfIn PDF document text
    • http://sellmysayarah.com/userfiles/files/lawup.pdfIn PDF document text
    • http://22vek-omsk.ru/fck_editor_files/files/puvipemilomalev.pdfIn PDF document text
    • http://phyllisrubensteinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fenopotutexezeba.pdfIn PDF document text
    • https://derfo.info/resimler/files/vumoxelape.pdfIn PDF document text
    • http://lokalsport.no/userfiles/file/11162248965.pdfIn PDF document text
    • https://korzayithalat.com/spot/admin/fckeditor/userfiles/file/rijulezitazeluvomol.pdfIn PDF document text
    • http://gardensyellowcab.com/admin/images/file/90492659947.pdfIn PDF document text
    • http://kezmosas.hu/files/file/54814793413.pdfIn PDF document text
    • http://ylpcl.com/ckfinder/userfiles/files/gizajumux.pdfIn PDF document text
    • http://fsgzb.com/upfolder/e/files/20210904044920.pdfIn PDF document text
    • https://fsreloading.com/userfiles/files/94949883424.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b718.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB718 16448 bytes
SHA-256: 8d27fefa0c9e3c9114d8b2c9ac97a489ea44ddfa9bf498a1e08ee7a1df2cd866
font_01_sfnt_off0000e11e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE11E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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