Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0182879a8e0aed7…

MALICIOUS

PDF

61.3 KB Created: 2021-05-26 23:36:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f068937aacb369453dd1c8fd5950673 SHA-1: fe6faefab618ad1e71dab472a46fb6994872abf8 SHA-256: c0182879a8e0aed70e068e98482bd46c0609459b215f81372b58fd8ee62e663a
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a link farm pointing to compromised WordPress upload storage, disguised as a movie download. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8123

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fed8bac953---77276448401.pdf
    • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16099b8f9e2e1f---sezok.pdf
    • http://accomplishtheimpossible.com/userfiles_ati/file/zesajefedafonira.pdf
    • http://elsekmont.eu/userfiles/file/94614252291.pdf
    • http://bakoca.hu/files/file/tegapilabiwiruk.pdf
    • https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/b80f25843fdc5cdd262ad5d48cc0eb85/xovinetefiwixob.pdf
    • http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16084c5e830eed---85657305339.pdf
    • https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac66f1d83ab---nesalakokuwewunot.pdf
    • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fbab43d578---39634052957.pdf
    • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/160ab2352ca971---96565037142.pdf
    • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609a7978c691b---48076057321.pdf
    • https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/j0vq46a3ucotc1nqjvklk3625h/boxamofavis.pdf
    • https://ludifrance.fr/userfiles/file/sitotutixikazur.pdf
    • https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/9976gnrg67f8q18j9nal4fkqd1/vuxugawobibubezopodas.pdf
    • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1607864bbc235b---368189112.pdf
    • https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/34027ab044b034a9441525e4d42c6794/zugojopurise.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=never+back+down+1+full+movie+download+in+isaimini
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d982.bin
157376f01844e74874c8555918b42e0e590f5267e92f3059d634398b32a8eba0
pdf-font-stream PDF embedded font (sfnt) at offset 0xD982 5344 bytes