Malicious PDF — malware analysis report

Static analysis result for SHA-256 be7cb029854cea21…

MALICIOUS

PDF

36.0 KB Created: 2021-07-08 01:43:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 26cea3e348a6c7e572eb5dad1f8cbcad SHA-1: abb86f47ba3987c5570f3ca4fc30863b6f64b6c2 SHA-256: be7cb029854cea215a8d74a7ed94aa8ac9f9c517d21085b96d9bbbbc2f466561
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.tw/app/431946152/how-to-get-free-robux-without-verification-game-hack PDF link annotation
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/hack-coin-master-32-mod-apk_GM406889139.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/free-magical-chest-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/roblox-free-accessories_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/roblox-teleport-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/coin-master-hack-pc_GM406889139.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/coin-master-ios-gods-hack_GM406889139.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/minecraft-cheats-pc-2021_GM479516143.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/free-robux-roblox-hack-no-survey-no-human-verification-updated_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/coin-master-get-free-cards_GM406889139.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/military-dave-roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/minecraft-for-ps3-free_GM479516143.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off000034a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34A4 22236 bytes
SHA-256: 8390518ce80a79ec7fa457bfccc2693e11c0729b7c9e47f8955dc63b086bbb70
font_01_sfnt_off00006611.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6611 19604 bytes
SHA-256: 58b409e880d8c8c8f611c8851265b785a46b2984af904f55916f4ac6f211fe18