Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdcbd195682cae30…

MALICIOUS

PDF

44.2 KB Created: 2021-06-03 13:14:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 0d2d7aa02bca7dd49e2a3251980d68f0 SHA-1: 69ccd65798747add2fec6850946f5e34a24fb176 SHA-256: fdcbd195682cae30a928b5f7283e7e82e07182e80d12cfe0dc53566e405634fc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://netcdn.online/app/406889139/coin-master-free-spins-deutsch-download-2021-link-game-hack PDF link annotation
    • https://library.sman1berau.sch.id/repository/coin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/easypoints-gg-roblox_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-free-accessories_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/rbx-free_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-apk-hack-3527_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/download-coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-free-items_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-promo-codes-2021-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-mast-hacks_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ef1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EF1 24576 bytes
SHA-256: 485f255159c1e2b34efec54e46d1c51c8200bfb96b7a7485e135de914a721411
font_01_sfnt_off000086fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86FA 19344 bytes
SHA-256: 2845a3e6ec075e64a55efc9536af757c9c9ea9b8a2b732129eaf0438470dc816

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