Malicious PDF — malware analysis report

Static analysis result for SHA-256 1edb23eff23575f4…

MALICIOUS

PDF

47.6 KB Created: 2020-12-19 21:45:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 09709a57cb3d65260a2f040548492138 SHA-1: 1090cf576e0438150291cad956be634aacf87227 SHA-256: 1edb23eff23575f412cb7cee50a24a5d1418ea11c708589bb7ed5297f55e01a6
212 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by multiple heuristics, including a critical finding for a redirector link and a link farm. The embedded links, such as https://cctraff.ru/strik?utm_term=funai+zv427fx4+manual, suggest an attempt to redirect users to malicious sites. The presence of numerous external PDF links indicates a potential SEO spam or phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6450

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.
  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://cctraff.ru/strik?utm_term=funai+zv427fx4+manual
    • https://cdn-cms.f-static.net/uploads/4367007/normal_5f875f98dd7e3.pdf
    • https://cdn-cms.f-static.net/uploads/4451566/normal_5fa33fb4b0aee.pdf
    • https://static.s123-cdn-static.com/uploads/4471691/normal_5fc3ddd867c29.pdf
    • https://sifumoxijobobo.weebly.com/uploads/1/3/4/4/134493963/b3a8121a401.pdf
    • https://s3.amazonaws.com/muxozuvalubi/paracetamol_500_mg_bula.pdf
    • https://s3.amazonaws.com/xujitezu/schematic_minecraft_s.pdf
    • https://uploads.strikinglycdn.com/files/fc6030b0-ebf7-4cd2-a720-f10e654608ba/seor_eres_fiel_acordes.pdf
    • https://s3.amazonaws.com/jebupofedijakuk/ways_of_knowing_in_tok.pdf
    • https://s3.amazonaws.com/didowugorokirug/99683262742.pdf
    • https://uploads.strikinglycdn.com/files/11ddb039-3e6b-4cee-80de-289471a45265/rizedakuxeworesofudivol.pdf
    • https://s3.amazonaws.com/tizowodifi/exercises_verb_to_be_affirmative_negative_interrogative.pdf
    • https://s3.amazonaws.com/fibesezati/69519146606.pdf
    • https://s3.amazonaws.com/tezofuretejom/11th_biology_book_maharashtra_board.pdf

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