Malicious PDF — malware analysis report

Static analysis result for SHA-256 61bdbe64177ad782…

MALICIOUS

PDF

135.6 KB Created: 2020-12-26 22:32:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45841d569a28944e158f068044684fa8 SHA-1: ecb40291cbf5f9ba04987f34b5509e1f93874ba8 SHA-256: 61bdbe64177ad782c8a4d2da5bfd8aceb7ae52a2f6cfe6d4069bf44813346b2f
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs, with at least one identified as a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'landing page bootstrap 4 template free'. The presence of numerous links on disposable hosting and a high ML classifier score indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9804

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/aws?utm_term=landing+page+bootstrap+4+template+free
    • https://mizefubu.weebly.com/uploads/1/3/4/6/134637235/aa64c16cf.pdf
    • https://cdn.sqhk.co/saseponirifa/jiiiOz2/impulse_response_frequency_formula.pdf
    • https://cdn.sqhk.co/wovegase/jgOgfid/above_the_city_skylines.pdf
    • https://koxizekeb.weebly.com/uploads/1/3/4/7/134770308/jusog-foxobawodozub.pdf
    • https://static.s123-cdn-static.com/uploads/4490934/normal_5fc7902bb8007.pdf
    • https://kasalaketowo.weebly.com/uploads/1/3/4/8/134871290/e137a653e44.pdf
    • https://cdn-cms.f-static.net/uploads/4415519/normal_5fa383e6dbd53.pdf
    • https://cdn-cms.f-static.net/uploads/4369160/normal_5f8f61b8a2e22.pdf
    • https://fobaripiso.weebly.com/uploads/1/3/4/4/134443650/8029285.pdf
    • https://cdn-cms.f-static.net/uploads/4466370/normal_5faadd3f596ed.pdf
    • https://s3.amazonaws.com/luborinizu/wifodebakedobuliz.pdf
    • https://s3.amazonaws.com/wamatasamegu/72808620976.pdf

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