Malicious PDF — malware analysis report

Static analysis result for SHA-256 f70e19d152b8cf0f…

MALICIOUS

PDF

50.6 KB Created: 2021-01-09 23:03:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: cfe7abb96fc6d6db716d989ff7fa1963 SHA-1: 9d02aa076cb0c134e05ce6380c4b531c47efb7b6 SHA-256: f70e19d152b8cf0f27b65a94ca7e0fbdb42c3907e6f29f27f9bda181a93cf31d
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs, many of which are hosted on disposable domains, indicating a link farm designed to obscure the ultimate destination. The primary URL, 'https://trafffi.ru/aws?utm_term=sarabande+handel+sheet+music', suggests a lure related to sheet music to entice users to click. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8051

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 https://trafffi.ru/aws?utm_term=sarabande+handel+sheet+music PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4469126/normal_5fb6a0362b123.pdfIn PDF document text
    • https://vivutavolid.weebly.com/uploads/1/3/4/3/134308799/bixol-vosavane-wijukuzox-maxiwis.pdfIn PDF document text
    • https://site-1174029.mozfiles.com/files/1174029/business_plan_template_word_south_africa.pdfIn PDF document text
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/3448931.pdfIn PDF document text
    • https://tozijaletaxe.weebly.com/uploads/1/3/4/3/134312516/rimupitigafip-mitesu-jemoseludenaba-wamix.pdfIn PDF document text
    • https://site-1173925.mozfiles.com/files/1173925/7602396348.pdfIn PDF document text
    • https://fozivumi.weebly.com/uploads/1/3/4/7/134761275/jokigimitux_kebuxufokumalup_tuvikokedaz_zamunu.pdfIn PDF document text
    • https://sizomejuxitiz.weebly.com/uploads/1/3/4/7/134748976/6231560.pdfIn PDF document text
    • https://mawakigimewu.weebly.com/uploads/1/3/4/8/134875352/nadelixudil-filokepejo-pigawazaku-navugapemifodu.pdfIn PDF document text
    • https://jesebumu.weebly.com/uploads/1/3/4/6/134617302/4963126.pdfIn PDF document text
    • https://site-1178022.mozfiles.com/files/1178022/19738633632.pdfIn PDF document text
    • https://site-1175580.mozfiles.com/files/1175580/cracker_barrel_locations_by_state.pdfIn PDF document text
    • https://site-1166680.mozfiles.com/files/1166680/58659145547.pdfIn PDF document text
    • https://site-1167973.mozfiles.com/files/1167973/logiciel_schema_electrique_mac_gratuit.pdfIn PDF document text
    • https://site-1194964.mozfiles.com/files/1194964/20816758551.pdfIn PDF document text

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