Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ed7020e18b8bea6…

MALICIOUS

PDF

35.3 KB Created: 2021-06-28 05:59:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 25d312c129ac625ba05f772c1f34f438 SHA-1: 16c6aa5642e7e35631b831a9d3452af013253244 SHA-256: 0ed7020e18b8bea64b998f0c6a3b3268f6abeddb7f019e48a5ebe3684dc92dd0
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 0.9980

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 http://netcdn.co/app/431946152/buzz-hacked-roblox-game-hack PDF link annotation
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-get-free-robux-no-download-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-get-free-robux-without-doing-a-survey_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/robux-free-no-survey-real-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-hack-an-acount-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/roblox-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/a-hack-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-robux-exploit-download_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-get-free-robux-without-waiting-now_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-robux-ad-banner_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-robux-eucom_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/roblox-hack-site-android_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-robux-no-human-verification-2021-pc_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-get-free-skins-in-counter-blox-roblox-offensive_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/roblox-guest-free_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/roblox-com-free-robux_GM431946152.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_off000030c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C6 23316 bytes
SHA-256: 839b404103bfcbde19b9b9859adad5192331af00ef100a03d17ee7a38ee8269b
font_01_sfnt_off000064a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A5 19052 bytes
SHA-256: a03b20f2be9180946c39530ab13af5bf301206d427cdc5bc868befa0ff01d0a6

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