Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbed725b37315de3…

MALICIOUS

PDF

44.0 KB Created: 2021-06-03 06:02:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 00e0051f3f15b187db7adfc0efb4af19 SHA-1: 4c2bc35c42c460d731726e30ef0af55ad5823e9f SHA-256: dbed725b37315de3c89b78c6ed1f84e17518df74819cca5b75fc90e17f45eefe
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-hack-version-game-hack PDF link annotation
    • http://library.ulb.ac.id//repository/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-hack-iosgods_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-hack-2021-android-apk_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-get-free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/is-roblox-free-on-pc_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/strucid-aimbot_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coinmaster-free-cards_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/roblox-free-hats_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/is-coin-master-free_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-download-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-avatar-free_GM431946152.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
stream_004_off00005023.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5023 25568 bytes
SHA-256: cc2e56c53857c40758b1f511643beafb6d2a1e25f8cc83d99bae2891a95284df
font_01_sfnt_off00008a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A77 17848 bytes
SHA-256: 2729ad92b050e6dc35a280ba208d99b8f0446e6618424513f217a7b9cdaff54a

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