Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2d0ee76c18f03d6…

MALICIOUS

PDF

70.2 KB Created: 2021-10-06 06:52:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 8e6d46b1e19d5c2aa246ee68eecc33fb SHA-1: 99d1f1de966fccb044304ed82d1025dd1a0420b0 SHA-256: c2d0ee76c18f03d62860477817d3f6f8c01d9f5e0fb5d36ba68ffa0b112294d9
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded URLs, many of which point to a link farm designed to obscure the ultimate destination. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' confirms the presence of a link farm on disposable hosting, suggesting an attempt to evade detection and distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6691

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 http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cd9b737579---tavorajofesisojekin.pdf
    • http://tavio.su/files/file/junejekuroruwixabosat.pdf
    • https://ubk-sad.de/azubi/userfiles/files/21157755070.pdf
    • http://cioccolatogallucci.it/userfiles/file/61916747160.pdf
    • http://xtra360.net/campannas/file/36831185009.pdf
    • https://pasationtravellers.com/root/FCKeditor/file/46081176952.pdf
    • https://betalinktech.com/blmedia/file/wamizaperadofimuguwida.pdf
    • http://ptaki.info/imgekoprojekty/files/xazal.pdf
    • https://ilonew.tasksplan.com/userfiles/files/vatukivopeki.pdf
    • https://nolimitscenter.be/peausitive/images/FCKeditor/file/73441597711.pdf
    • https://www.de5dollarsdigitizing.com/ckeditor-ckfinder-integration/uploads/files/wikamesowagufeme.pdf
    • https://blugarden.eu/file/26686764376.pdf
    • http://nissanotogovap.com/uploads/images/files/45086595218.pdf
    • http://dylogistics.com/userData/board/file/51354670795.pdf
    • http://tentimesneedlehill.com/UPFILE/userfiles/files/nugadugotadatik.pdf
    • http://bentleyplemtech.ru/userfiles/file/zutuvozoliduzas.pdf
    • https://tipresentoio.it/images/file/xuwobowanivosemubara.pdf
    • https://sagarexpress.com/userfiles/file/4692744406.pdf
    • http://andlupa.com/userfiles/file/90700005019.pdf
    • https://global-brand.net/userfiles/files/44715349791.pdf
    • https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/81efb4c4spuuhglmg6bl9bpsr7/91053732805.pdf
    • http://cobe-ing.it/userfiles/files/38742996187.pdf
    • http://sushistoryus.com/uploads/files/96277587029.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=son+of+consolation+in+the+bible
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e633.bin
779e83d87568de67a6758bd00b9b5dc648f1360c6d9dbb8a85e4abe995e2ab17
pdf-font-stream PDF embedded font (sfnt) at offset 0xE633 19560 bytes