Malicious PDF — malware analysis report

Static analysis result for SHA-256 5de736a16dcb07fe…

MALICIOUS

PDF

16.6 KB Created: 2020-11-01 07:45:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: afe39e203b52f3d88eb62480b7eb6280 SHA-1: f1bb2f7511821dce88f44c89a02933827570f974 SHA-256: 5de736a16dcb07feba9d1b28bf665eb0b4efc4d8d3892ae8d712b011b198577f
112 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as malicious due to its structure, which mimics a screenshot lure to entice users into clicking a link. This link, specifically 'https://cctraff.ru/aws?keyword=one+liter+of+tears+book+english+pdf', is flagged as a known malicious redirector. The document's content and the presence of multiple embedded URLs suggest an attempt to lead the user to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

Heuristics 3

  • 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.
  • 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 16 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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/aws?keyword=one+liter+of+tears+book+english+pdf
    • https://pewovorawegoxuv.weebly.com/uploads/1/3/4/3/134351704/rusebumoxezefuxa.pdf
    • https://damijuvik.weebly.com/uploads/1/3/1/3/131381376/dunijojivisilezuw.pdf
    • https://zozufawagizawag.weebly.com/uploads/1/3/4/4/134454621/nusut.pdf
    • https://regajuwanuduxis.weebly.com/uploads/1/3/4/3/134319991/juvewuwuzifonegom.pdf
    • https://redunexodozik.weebly.com/uploads/1/3/0/8/130814050/5944719.pdf
    • https://uploads.strikinglycdn.com/files/ed90acd0-1756-4646-a23b-cc5615c0ee11/73873251556.pdf
    • https://uploads.strikinglycdn.com/files/50607a71-263a-4906-96c6-643a7d544c9f/xewurofumago.pdf
    • https://cdn.shopify.com/s/files/1/0430/1396/3935/files/there_existed_an_addiction_to_blood_meaning.pdf
    • https://s3.amazonaws.com/tujeviwakirawu/51809026921.pdf
    • https://uploads.strikinglycdn.com/files/91ce72f3-6a49-468e-a940-9e29fdd50ff5/jifimomogat.pdf
    • https://uploads.strikinglycdn.com/files/fd09ce41-35ac-40b0-ad87-c07d21c24aeb/download_lagu_aaliyah_try_again.pdf
    • https://s3.amazonaws.com/vukusa/25460578052.pdf
    • https://cdn.shopify.com/s/files/1/0482/6808/3358/files/plastic_surgery_instruments_catalog.pdf

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