Malicious PDF — malware analysis report

Static analysis result for SHA-256 d69ff30f32171f4b…

MALICIOUS

PDF

55.1 KB Created: 2021-01-11 17:13:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dddef65df72bda5b5e89b733eca5d35c SHA-1: 6ee57d9d052412adc9fce62086a1e1376af40af3 SHA-256: d69ff30f32171f4b08d6dce3a68530f4faf79be7f5ad01b0fca285f5b5b4c253
242 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document functions as a link farm, containing numerous embedded links that redirect to potentially malicious websites. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags a link to 'traffmen.ru', indicating a known redirector. The document's structure and the presence of many external links suggest an attempt to distribute malware or phish users by directing them to compromised or malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9086

Heuristics 5

  • 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
  • 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://traffmen.ru/aws?utm_term=biographies+of+famous+scientists+pdf
    • https://mazogerivajusem.weebly.com/uploads/1/3/4/3/134341978/6722880.pdf
    • https://dojeviwenos.weebly.com/uploads/1/3/4/4/134491393/a50de13e.pdf
    • https://saxibodusazo.weebly.com/uploads/1/3/0/7/130740440/0f4f5156c4ed.pdf
    • https://rulomegujenuguv.weebly.com/uploads/1/3/4/3/134329868/b787e1abc5ee45a.pdf
    • https://xilamexazoleguj.weebly.com/uploads/1/3/2/6/132695560/lobizuvixezapi_muborijut_zutafivarewes.pdf
    • https://zisatusomet.weebly.com/uploads/1/3/4/8/134872515/kamomonijowegetij.pdf
    • https://site-1168486.mozfiles.com/files/1168486/wozoxamotupivowam.pdf
    • https://cdn.sqhk.co/vuwonesi/agfhcia/tennessee_titans_stats_per_game.pdf
    • https://cdn.sqhk.co/lisesemafo/Yxzjaia/78955902760.pdf
    • https://wajevuwefabebos.weebly.com/uploads/1/3/4/6/134681626/misowafenir.pdf
    • https://regifedemez.weebly.com/uploads/1/3/1/4/131406591/827e60e3c6f.pdf
    • https://site-1177426.mozfiles.com/files/1177426/35868886692.pdf
    • https://kazigujexumakul.weebly.com/uploads/1/3/4/3/134320364/6824112.pdf
    • https://cdn.sqhk.co/ravawiku/jGjbiga/mewukeroxibavomuxuf.pdf
    • https://s3.amazonaws.com/woberiz/android_studio_3._5._0.pdf

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