Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2de0c63bc571a6a…

MALICIOUS

PDF

32.8 KB Created: 2021-07-03 12:07:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ef5286128c08a47287b4406d720f1d41 SHA-1: 59e27d0f8038885ad084c40d0e331f4d238e2faf SHA-256: b2de0c63bc571a6af71c05c905085b01f147e866da64213c75e92310adb61986
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links, including one to 'netcdn.tw' which is flagged as a redirector for game hacks. The document body and extracted URLs suggest a lure for free game cheats or generators, likely to download malware or phish for credentials. The ML classifier also strongly indicated maliciousness.

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/479516143/how-can-i-play-minecraft-for-free-game-hack PDF link annotation
    • http://digilib.iailm.ac.id/repository/is-nexusus-roblox-hack-safe_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-ghost-hack-cheat-engine_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/neruc-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-infinite-robux-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-app-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-change-your-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-look-cool-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-daily-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-install-minecraft-for-free-on-ios_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-spins-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-money-in-adopt-me-roblox_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
font_00_sfnt_off00002dfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DFD 21380 bytes
SHA-256: 9be924636519dc4066756ff5fdc75261c77a79897b6bd23f3809c3fec71d0b67
font_01_sfnt_off00005c85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C85 18568 bytes
SHA-256: ed4aa387c313cd04cdf9fee16f9ce185c935807b6124fbbf87cd3adc6a594d73

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