Malicious PDF — malware analysis report

Static analysis result for SHA-256 e19e30f6d9661b2a…

MALICIOUS

PDF

53.8 KB Created: 2021-02-19 17:24:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92f8cd38ec41d2b3d4b4f7a86799a6d2 SHA-1: 7c9d8924317943b01637b3a6635ea2964ddc2741 SHA-256: e19e30f6d9661b2a29a40a16c1e734d9b323045f9eae64da72c405ed56bcc69a
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-only nature and embedded clickable link. The heuristic 'PDF_SEO_LINK_FARM' indicates the presence of numerous external links, suggesting a campaign to distribute malicious content or redirect users to phishing sites. While no scripts were explicitly extracted, the PDF structure and embedded URI point towards an attempt to exploit users via deceptive content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6563

Heuristics 5

  • 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
  • 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 53 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://leonvi.ru/123?utm_term=how+get+your+ex+boyfriend+back+using+text+messages
    • https://wimaxexuxiwob.weebly.com/uploads/1/3/0/8/130874544/6721656.pdf
    • https://cdn.sqhk.co/xataruzepape/iqRjbrB/jogigat.pdf
    • https://cdn.sqhk.co/sezogitov/gfhgxji/kaxedakavidin.pdf
    • http://teksalon.xyz/bioquimica_medica_baynes_4tazlf1a.pdf
    • http://waystep.site/421853428983h1yo.pdf
    • https://jepejopik.weebly.com/uploads/1/3/4/6/134610321/5829099.pdf
    • http://afracheat1.xyz/409432430265iawr.pdf
    • https://setopotuvojinow.weebly.com/uploads/1/3/4/8/134877086/nivanepiku_luguxozipova_wekubovib_zedopedadux.pdf
    • https://cdn-cms.f-static.net/uploads/4426823/normal_60199b10ed3a7.pdf
    • https://cdn-cms.f-static.net/uploads/4390680/normal_5fe7dabce6f8d.pdf
    • https://tigidejuremu.weebly.com/uploads/1/3/4/5/134502839/wogoxudakogofur.pdf
    • https://s3.amazonaws.com/nefomojuwet/98199104494.pdf
    • https://s3.amazonaws.com/feseni/62713180088.pdf
    • https://s3.amazonaws.com/mejifavo/2005_chevrolet_malibu_ls_maxx_hatchback_4d.pdf
    • https://s3.amazonaws.com/bewibiwat/47591949917.pdf
    • https://s3.amazonaws.com/kosamupim/kirchhoff_s_law_worksheet_with_answers.pdf
    • https://s3.amazonaws.com/zuwimadaneb/gastropod_anatomy_worksheet.pdf
    • https://s3.amazonaws.com/wobuzisibal/no_matter_what_i_do_lyrics.pdf
    • https://s3.amazonaws.com/rerinago/ean-_128_barcode_font.pdf

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