Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4dec08ec329183d…

MALICIOUS

PDF

50.6 KB Created: 2020-11-22 03:23:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 626f8362d1627b00155de3829c3a92a1 SHA-1: e783b47a54dab660163d9c5b5bbeaeea628a85d4 SHA-256: c4dec08ec329183da9acfe9a9ac7ea0b00add13ba9ff68f8ca3962e2276c212d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, with one pointing to 'trafftec.ru', suggesting a link farm or redirection mechanism. The presence of a PDF_SEO_LINK_FARM heuristic firing indicates the document is designed to host numerous links, likely for malicious distribution or phishing campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8221

Heuristics 4

  • 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
  • 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://trafftec.ru/aws?utm_term=on+my+way+ringtone++pagalworld
    • https://pukejuzim.weebly.com/uploads/1/3/4/4/134457080/kexakogexadefonug.pdf
    • https://gozofuma.weebly.com/uploads/1/3/0/8/130874065/fokon_sajevepebi_xijonibevetid.pdf
    • https://s3.amazonaws.com/fifuto/subazonisus.pdf
    • https://uploads.strikinglycdn.com/files/4c8b4348-f682-4aa5-9321-7321e2517a19/abnormal_psychology_susan_nolen_hoeksema_6th_edition.pdf
    • https://s3.amazonaws.com/tiluwisulepam/xejaxodekofitevexuzovalin.pdf
    • https://uploads.strikinglycdn.com/files/346a375d-eb3f-4a06-99b3-81b127b47719/belubema.pdf
    • https://uploads.strikinglycdn.com/files/89252728-7c8a-441d-8119-097d1d386ee2/mercedes_benz_electric_car.pdf
    • https://uploads.strikinglycdn.com/files/939a3ae5-f067-471f-832e-eaa85cba899d/iptv_apk_pc.pdf
    • https://uploads.strikinglycdn.com/files/d4ebba04-f1e2-47ba-8341-dec4ff5ce863/rolap.pdf
    • https://uploads.strikinglycdn.com/files/60821b00-5620-4a19-b159-2af8d18404a1/varukogaluxupitidi.pdf
    • https://uploads.strikinglycdn.com/files/3746b2bd-c5e0-4d60-b84d-bf152a36f146/53761247311.pdf
    • https://uploads.strikinglycdn.com/files/d4145c82-5e21-4268-9c73-16ea4df39f83/sedagonebituxuzowifopuj.pdf
    • https://s3.amazonaws.com/tetazino/paleo_diet_menu.pdf
    • https://uploads.strikinglycdn.com/files/c837b893-0da1-416e-a003-3b127c51ce71/welusorogibujotavowobix.pdf

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