Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ad0811263369a56…

MALICIOUS

PDF

58.6 KB Created: 2020-12-16 02:10:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6197a5c2494331ac293226789bbb4c18 SHA-1: a09478595f4cfdc454bd9a8f26d28db8d74016ee SHA-256: 1ad0811263369a56a4857bd5238493255d6f5bb209ca62fb78ffab8746939d36
212 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, one of which points to a known malicious redirector. The document body is heavily obfuscated, but the presence of the malicious link and the ClamAV detection strongly suggest a phishing or malware distribution attempt. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6609

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://traffmen.ru/aws?utm_term=persuasive+writing+samples+pdf
    • https://goduvozimaku.weebly.com/uploads/1/3/1/3/131380582/7539717.pdf
    • https://static1.squarespace.com/static/5fc1b3b3085bf90c0e02b495/t/5fc5d8cbe18c5c478ec5f514/1606801612892/ridumoxugokukigesusi.pdf
    • https://uploads.strikinglycdn.com/files/0387d25b-dbd6-456c-8780-52eb0a495802/math_pickup_lines.pdf
    • https://uploads.strikinglycdn.com/files/5303471b-56ee-418f-90d8-7a4760d3c2df/30689983801.pdf
    • https://static1.squarespace.com/static/5fc006d0104edf1d777bfbd4/t/5fc3606e6457125654a73925/1606639728976/vudafuxunizenetukid.pdf
    • https://static1.squarespace.com/static/5fc102e7bda9c57a97beca32/t/5fc417cdf3de5e49b5e5007f/1606686670808/gonijujotafasofiva.pdf
    • https://static1.squarespace.com/static/5fc0f83717e7202640ea8e04/t/5fc88ba8f97c193540f2f48a/1606978473104/zogogidezixokarebajaduj.pdf
    • https://uploads.strikinglycdn.com/files/45d0d289-e128-4edf-ab09-0339ae5ca040/fabosobozunomizosudose.pdf
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf15a3570fb44d1c8407e/1606283611224/memesotirobem.pdf
    • https://uploads.strikinglycdn.com/files/3545b5c8-a542-41ac-a01f-b9ce9012a4ba/pideme_lo_que_quieras_online.pdf
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd09e11af5bf52c328e1fb/1606224354543/tai_chi_for_beginners_and_the_24_forms_dvd.pdf
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe01e34e98326c02d6a604/1606287844240/webizegupel.pdf
    • https://uploads.strikinglycdn.com/files/0cedbe48-a230-416d-a5c4-9fd5b0fdd2e9/sekozupevexiwo.pdf

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