Malicious PDF — malware analysis report

Static analysis result for SHA-256 5023b3eb1816bdc0…

MALICIOUS

PDF

34.7 KB Created: 2021-06-26 14:04:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 59dade4585ceb0e55cda967c074f3f8a SHA-1: 07c3dece670a09c9c5a03bc3ed010c60a258e25b SHA-256: 5023b3eb1816bdc00c59a77d39ed4baeef39020b2fe32e37abd11306671a4214
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/como-usar-cheat-engine-no-roblox-2021-game-hack PDF link annotation
    • http://digilib.iailm.ac.id/repository/best-roblox-exploits-free-v3rmillion-november-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-hack-android_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-bypass-key-systems-on-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/ww-roblox-come_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-no-survey-2021-june_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/break-free-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-ultimate-driving-v3rmillion-free-gamepass_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-aerial-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-hack-apk-latest-version-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-free-robux-works-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/auto-speed-hack-legends-of-speed-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-games-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/hack-roblox-co-no-verification_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/minecraft-pe-hacks-2021_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/juego-hackeado-de-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/roblox-free-robux-hack_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_off00002f8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F8B 22440 bytes
SHA-256: 5cb77d9452b89ce162fb000b58611b5230a59e10d5d1b483518470f6d2d8d9c6
font_01_sfnt_off00006141.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6141 19540 bytes
SHA-256: 4dcb07fe272402ccaf87e570204c7e4a5215a8f6f2c26729fdc95f86bbd100c6

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