Malicious PDF — malware analysis report

Static analysis result for SHA-256 da15367aa081541a…

MALICIOUS

PDF

41.6 KB Created: 2020-11-30 11:34:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: d2a06d739366447e3350d6304571b9bd SHA-1: b283808cb4addcf7883aef8444ab44b3d6c09330 SHA-256: da15367aa081541a4535076a074685f29fd1d391b28fb7a71fc098aaee759e7a
174 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9297

Heuristics 5

  • 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 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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 41 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://trafffe.ru/aws?utm_term=malaguena+music+sheet PDF link annotation
    • https://welavofewefose.weebly.com/uploads/1/3/0/8/130813025/8030975.pdfIn PDF document text
    • https://bujetukojijem.weebly.com/uploads/1/3/4/8/134875379/fedezulatunuvivakid.pdfIn PDF document text
    • https://besozidemupi.weebly.com/uploads/1/3/4/6/134635439/puluwafitafesezipane.pdfIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/airtame_2_setup_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5b873c02f22b9d049b04/1606376328104/something_blue_movie_where_to_watch.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14cd0d90-a24d-4407-8aa9-1c843a9332e6/bowens_reaction_series_predicts_the.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c93840a-0bf9-41b8-b6d1-448f125bc1e8/34449641485.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dbc8cad-4412-4ef5-bd30-563e32475706/krathwohl_s_taxonomy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/967065f6-c5e7-4a4e-a339-2b8590e28e49/vujozunagafijizemul.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc184d02cf09257bd70659c/t/5fc29ed461e25426e18d544b/1606590165257/3509486302.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e9eb3398ff75152e2002/t/5fc2bc06eaf37e3b64f6a4c8/1606597638598/53101171158.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be672016-0593-483e-bddb-b653b8588a60/3110360935.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61d808c6-3678-4c2e-ad14-fd293e9e3406/18925284609.pdfIn PDF document text

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