Malicious PDF — malware analysis report

Static analysis result for SHA-256 6add176a33e5cdad…

MALICIOUS

PDF

39.4 KB Created: 2021-03-17 21:16:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3fa2df4ce154b2bb4f88ad93d8f095d3 SHA-1: 73aeaf35b783958e8926247b2d64558e472fe27e SHA-256: 6add176a33e5cdad7be7d8cb0958e61863a51526b550a9db94688de7610c855b
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as malicious by ClamAV and a machine learning classifier, exhibiting characteristics of a phishing lure due to its small size and image-based content. It contains multiple external links, with one prominent URL pointing to a suspicious domain, suggesting an attempt to redirect the user to a malicious site or download further content. No scripts were extracted, but the presence of external links and the overall structure indicate a likely phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7882

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 39 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://xajibur.ru/award?keyword=les+animaux+en+fran%25C3%25A7ais+et+en+arabe+pdf
    • http://yildirimotobursa.com/kikawevatibadumorudfp.pdf
    • https://fixoxotogixas.weebly.com/uploads/1/3/4/3/134374926/6163098.pdf
    • http://world-wildshop.com/la_luz_del_mundo_trialgv6ta.pdf
    • http://hotita.space/lepilisapupoxisowakusakijwpmby.pdf
    • https://vupebuxotilejo.weebly.com/uploads/1/3/0/8/130814562/5056120.pdf
    • http://sexesex.site/blank_sheet_music_staff_paper1hyxp.pdf
    • https://pukakiliratof.weebly.com/uploads/1/3/4/7/134768090/bimezaxovuzifovet.pdf
    • https://julubagarod.weebly.com/uploads/1/3/2/6/132695517/678173.pdf
    • https://warujupegam.weebly.com/uploads/1/3/4/6/134687544/bekebobedezit-xomikupagazaf-redomupakexa-mebenur.pdf
    • https://72cee60b-533f-4fda-9f40-87b1bb6f0553.filesusr.com/ugd/590778_4640d52a51624f9397f18399ac20d7a5.pdf?index=true
    • https://uploads.strikinglycdn.com/files/b936efdf-9699-4dc4-83db-7d255613e079/zebra_gk420d_label_printer_manual.pdf
    • https://uploads.strikinglycdn.com/files/db25ae7d-2d8b-4d85-bcd3-bb9157679eca/coursera_applied_machine_learning_in_python_quiz_2.pdf
    • https://uploads.strikinglycdn.com/files/30072084-aa64-4204-ac46-c403c260ff55/christmas_carol_patrick_stewart_on_tv_2020.pdf
    • https://f6b99bba-f064-431f-ab68-6eacb91b2703.filesusr.com/ugd/35e1ce_6f80ff7b37ef416e81d1a7d1f827a40e.pdf?index=true
    • https://uploads.strikinglycdn.com/files/a07f2238-a254-45af-b70f-fcaeba312536/19537627657.pdf
    • https://94aa8f26-b07a-4c24-bdb4-4112657565c9.filesusr.com/ugd/37428b_d9a9491a18f84de4beae7935cebf5eb0.pdf?index=true
    • https://7f793f8f-877f-420e-851b-8bae9ea62a4d.filesusr.com/ugd/78c764_c638847742dc4c7c9fd3fd6549886c6f.pdf?index=true

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