Malicious PDF — malware analysis report

Static analysis result for SHA-256 16064de5db830c85…

MALICIOUS

PDF

44.9 KB Created: 2021-03-19 13:35:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9f1c129307818fa75c9f01b9af18caaf SHA-1: 39b2bcf474339054b772cab5d7889c58faf539b2 SHA-256: 16064de5db830c852de193bedfa23a82fda35f153e8cfce3e0e339c0e9050ff8
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF employs an image-only lure, typical of phishing, with a clickable action directing to a suspicious URL. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to lead the user to a malicious site, likely for credential harvesting or further malware deployment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7995

Heuristics 4

  • 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 44 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://gimoguvi.ru/award?keyword=atticus+finch+closing+argument+pdf
    • http://hardcreditcheck.info/90010416982nj586.pdf
    • http://biomaniks.website/55655148767zju1t.pdf
    • http://liketsven.xyz/are_the_harry_potter_movies_just_like_the_books67iat.pdf
    • http://lofitner.buzz/mangrove_rhizophora_apiculatabawn3.pdf
    • https://cdn.sqhk.co/botonerepap/hfhNnkj/duduzuratufosibirawuzo.pdf
    • https://static.s123-cdn-static.com/uploads/4446492/normal_600302eeafdbc.pdf
    • http://invitesistem.ru/iron_man_simulator_2_script_pastebin2my3w.pdf
    • https://cdn-cms.f-static.net/uploads/4450418/normal_5fd79037a3875.pdf
    • https://cdn-cms.f-static.net/uploads/4448535/normal_601e88b24ed7b.pdf
    • https://static.s123-cdn-static.com/uploads/4448343/normal_5febd0d1aff1a.pdf
    • http://keep-travel.com/2639853530fawfg.pdf
    • http://mmeueue.space/75999805070107b7.pdf
    • http://hangzhoumetal.ru/maytag_centennial_dryer_parts_listkpzdg.pdf
    • https://cdn.sqhk.co/vizoxaxijojo/DgjWnZU/domino_s_pizza_w._republic_rd.pdf
    • https://57ead060-d7b3-4f59-a803-6c9b47c0028a.filesusr.com/ugd/f30481_03f835e887d74e328aec715603b22dd2.pdf?index=true
    • https://f200304d-316b-45a9-b05c-680123ec6d1a.filesusr.com/ugd/aad1a2_25d53ee9e95942588b45acd8378cb004.pdf?index=true
    • https://562c2315-396f-49d1-9e45-1236e049cb13.filesusr.com/ugd/ec0012_604c707d8cc34c4db1e5739689ef776b.pdf?index=true

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