Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e1e507253bc04ec…

MALICIOUS

PDF

70.6 KB Created: 2021-10-05 00:58:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 913c41c0308a37c04c30ef832d03f1ab SHA-1: 866c1a3f84fbb7fd12133e6227e13d498b803f9c SHA-256: 0e1e507253bc04ec4b0660414ec4552ab99fc2ca9bf68e2a6bee12452998ab31
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs pointing to disposable domains, a common tactic for phishing or malware distribution. ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests malicious intent. The PDF structure and embedded links indicate it's designed to lure users to external sites, likely for credential harvesting or further infection.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4270

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://irlanc.ru/uplcv?utm_term=digeco+theme+nulled PDF link annotation
    • http://fobas.cz/userfiles/file/fakatuze.pdfIn PDF document text
    • http://warwick-ems.org/userfiles/file/vosofupibetufuluk.pdfIn PDF document text
    • http://cnsgawefgl.netsociality.com/upload/files/21333031685.pdfIn PDF document text
    • http://cartopack.com/Images/file/73720671217.pdfIn PDF document text
    • http://sga.cc/uploadfile/file///2021100315552287.pdfIn PDF document text
    • http://tochuchoinghi.org/files/polekibuwomaxedimu.pdfIn PDF document text
    • https://moderator.lt/components/com_mijoshop/opencart/image/data/files/girusibapobuxuputumirafad.pdfIn PDF document text
    • http://strandkrabbe-hohenfelde.de/sites/default/files/files/lutiwulilurulixaxafobemu.pdfIn PDF document text
    • http://100gastro.cz/soubory/files/vikavudevuzogeririjowil.pdfIn PDF document text
    • http://tuanayapim.com/rsm/files/bawijiji.pdfIn PDF document text
    • http://secureyun.cn/uploadfile/file///2021091602570396.pdfIn PDF document text
    • http://artepcb.com/upload/files/xikirizijo.pdfIn PDF document text
    • https://eco-translation.ca/upload/editor/file/9478583083.pdfIn PDF document text
    • https://adeptos.clevercloud.pt/images/items/files/28590839067.pdfIn PDF document text
    • http://bankerz.in/qpic/files/lurasuzix.pdfIn PDF document text
    • http://vagyonvedelemszolnok.hu/admin/fck_upload/file/dazutoranedivizowapukifu.pdfIn PDF document text
    • http://gjbbang.com/userData/board/file/nunaxewadogekajul.pdfIn PDF document text
    • https://www.info-service.com.tw/plugin/ckeditor/ckfinder/userfiles/files/16195771486.pdfIn PDF document text
    • http://verduciautodemolizioni.it/userfiles/file/xifakutolorovaselabez.pdfIn PDF document text
    • http://ventilyatsia-v-sochi.ru/ckfinder/userfiles/files/kigeweguxitulutike.pdfIn PDF document text
    • http://www.synagoge-stommeln.de/ckfinder/userfiles/files/muzerafomeka.pdfIn PDF document text
    • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/16146fee9d0b26---popedudurezaxe.pdfIn PDF document text
    • https://phuketwebstudio.com/ckfinder/userfiles/files/23508186769.pdfIn PDF document text
    • http://www.biharikft.hu/bihari-admin/ckfinder/userfiles/files/simalofomefuz.pdfIn PDF document text
    • https://pianoinprimopianofestival.com/uploads/file/kirak.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_off0000e6e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ff00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF00 10488 bytes
SHA-256: 1901e8a7f0c065b53c245311c599a6bfff256ca69a07a9f5adb27dbac73c589c