Malicious PDF — malware analysis report

Static analysis result for SHA-256 e298cce072a4fda2…

MALICIOUS

PDF

119.3 KB Created: 2021-06-20 13:13:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 1a3df70800a599fa96341e46071735c0 SHA-1: 31a2eb2d5071e362272ed9279834e9d573b1c91c SHA-256: e298cce072a4fda207a9582d0c3c8ba7f8d8a8ddbc8e1d469513d9d57b576369
154 Risk Score

Malware Insights

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

This PDF file was detected by ClamAV as Pdf.Phishing.Trojan. The document contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a phishing or malware distribution campaign. The presence of embedded URLs and the ML classifier's flagging indicate a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5881

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 https://wastran.ru/uplcv?utm_term=ganesh+puja+vidhi+in+bengali+pdf PDF link annotation
    • https://otelnamore.com/wp-content/plugins/super-forms/uploads/php/files/1300ad629629b0dcca2c81733c3626d0/43642418369.pdfIn PDF document text
    • https://www.epicbrands.co/wp-content/plugins/super-forms/uploads/php/files/c8f21ede6106ead584e8a9515f149c41/jiriwa.pdfIn PDF document text
    • http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c779c83a277---6463160006.pdfIn PDF document text
    • https://chung-pei.com/userfiles/file/1372427123.pdfIn PDF document text
    • http://thuexe7cho.vn/upload/files/miditefifodo.pdfIn PDF document text
    • https://artlabjo.com/userfiles/file/pososamiwuxedojiporunaja.pdfIn PDF document text
    • https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/v3dibup9aa9777jmht0lmo412b/27723164980.pdfIn PDF document text
    • https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/70822c263fced37cc63dbd07d241275f/lutujukuromebisumelo.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa2fe9e4239---61954460187.pdfIn PDF document text
    • http://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/43074629784.pdfIn PDF document text
    • http://geose.ru/userfiles/file/duzenuj.pdfIn PDF document text
    • http://terapeutickemasaze.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1979c7406---xilakidojolinulifedan.pdfIn PDF document text
    • http://altelaw.com/uploads/image/file/76861105629.pdfIn PDF document text
    • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/lo2cb5krb55tr6ko5jfrdmi8ck/77917356184.pdfIn PDF document text
    • http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/fbb3a09babfd88d550cac3278a7fb13a/74350816406.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001584f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1584F 5208 bytes
SHA-256: e8e29aeddd94deca2cb8be26ab3c55caf32903d1b484b4f09fdee9ba3946d410
font_01_sfnt_off00016a05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16A05 21144 bytes
SHA-256: c2296d0c0d7019961723a0504fc024b2c8fbec6066c652312f0b1003170f6319
font_02_sfnt_off0001a43f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A43F 12676 bytes
SHA-256: 8314320b3712b082f6d6d87729f9c109fc1ecf1081847577810dfa326d6f8fca
font_03_sfnt_off0001cc60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CC60 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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