Malicious PDF — malware analysis report

Static analysis result for SHA-256 48a9f257c128188b…

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 12:26:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a8ad21db7255dc88dd0ec822dde8f890 SHA-1: 6499152c8a436871d3e2873db6c36c1fc0bd2cd1 SHA-256: 48a9f257c128188b3ded14a4d1103962ab19e14b30692b1cec314e8e52033c5d
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/406889139/master-coin-hack-mod-game-hack PDF link annotation
    • https://slims.bakrie.ac.id/textbook/repository/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/hack-my-account-password-roblox_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-get-free-vip-in-roblox-top-model-2021_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-stuff-on-roblox-webste_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-robux-nunchucks_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/como-distruir-juegos-en-roblox-si-hack_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-daily-free-spins-link-today-blog_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/noclip-cheat-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-hack-apk-download-for-android-mobile_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-change-your-skin-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/como-hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-ios-hack_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/2021-no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/roblox-dex-script-hack_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-hacks-no-human-verification_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32DA 22560 bytes
SHA-256: cd4aba51b07131284750246bba6a76c6db9df6248015cfd73495d6a4a07c0e04
font_01_sfnt_off0000650b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x650B 18180 bytes
SHA-256: ed04b551d40dc3d0b078bebd4df0367427dce1de22e506577ff87439cc2ad0e8

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