Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fbc66bcaf8e9b01…

MALICIOUS

PDF

59.7 KB Created: 2021-05-30 04:30:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 491e416ab635dac710f1bf6b14869f8f SHA-1: 094222e23816bdbc34a5fec0f842e1b36df7dd71 SHA-256: 4fbc66bcaf8e9b013ee8c0a1c9ccb5b5f28cbb56a786c513f2b9201224bca5ff
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of external links pointing to disposable domains, indicative of a link farm. The primary URL, https://soxebez.ru/strik?utm_term=what+episode+does+marinette+find+out+who+cat+noir+is, suggests a lure related to popular media to attract clicks. The ClamAV detection and ML classifier further support its malicious nature, likely as a phishing or SEO spam distribution mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6420

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://soxebez.ru/strik?utm_term=what+episode+does+marinette+find+out+who+cat+noir+is PDF link annotation
    • https://gitapobukelagij.weebly.com/uploads/1/3/4/2/134266265/6015517.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474176/normal_606a247e23e74.pdfIn PDF document text
    • https://bokonuso.weebly.com/uploads/1/3/4/6/134604328/af18f32227809.pdfIn PDF document text
    • https://pakovabe.weebly.com/uploads/1/3/4/4/134442852/c7965.pdfIn PDF document text
    • https://lujogome.weebly.com/uploads/1/3/4/6/134617312/ledug-wewalisumax.pdfIn PDF document text
    • https://moxujudafetofa.weebly.com/uploads/1/3/2/7/132712376/wajojisidiropokik.pdfIn PDF document text
    • https://ruwofemenir.weebly.com/uploads/1/3/4/0/134040866/fusufexeboxa.pdfIn PDF document text
    • https://topitodowel.weebly.com/uploads/1/3/4/8/134890479/8644397.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496391/normal_5fd33e68c5b09.pdfIn PDF document text
    • https://mipapipav.weebly.com/uploads/1/3/4/0/134012398/rovoso_wuxinaxuw_devoxe.pdfIn PDF document text
    • https://rulukipa.weebly.com/uploads/1/3/4/3/134329123/506486.pdfIn PDF document text
    • https://zodijezuworid.weebly.com/uploads/1/3/1/4/131483265/1d1670.pdfIn PDF document text
    • https://rifitozimolumi.weebly.com/uploads/1/3/4/6/134667823/3264832.pdfIn PDF document text
    • https://betiriwusogaz.weebly.com/uploads/1/3/1/3/131380032/faninozefup-weniz.pdfIn PDF document text
    • https://rakuwogu.weebly.com/uploads/1/3/4/8/134858672/madumelaseso.pdfIn PDF document text
    • https://bomevalaruzaf.weebly.com/uploads/1/3/4/8/134871705/2a801dd75242.pdfIn PDF document text
    • https://rodazikajoreme.weebly.com/uploads/1/3/0/8/130874285/dapig.pdfIn PDF document text
    • https://karinavoru.weebly.com/uploads/1/3/4/0/134017817/badipar_kutojeju_megekenat_subukuk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370560/normal_60180d7d7382e.pdfIn PDF document text
    • https://balalowomave.weebly.com/uploads/1/3/0/7/130738893/xinuwo-nabonitujedura-bigevej.pdfIn PDF document text
    • https://depuxibuf.weebly.com/uploads/1/3/4/7/134762413/11e7c7.pdfIn PDF document text

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