Malicious PDF — malware analysis report

Static analysis result for SHA-256 964beb85c951df1c…

MALICIOUS

PDF

34.7 KB Created: 2021-06-18 19:29:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 9f42528938cd8d9fe4048fdef12be76b SHA-1: 092d2e5fd0533744844e47a8fa36ec338cf67301 SHA-256: 964beb85c951df1cf8cc21976d83ffa36158607c323175b15e042ed346e5838a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures related to game hacks and free in-game currency, directing users to a suspicious URL. The ML classifier strongly indicates maliciousness, and the embedded URL is a high-risk indicator. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a site that likely hosts a malicious payload or exploits.

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/roblox-cheat-engine-phantom-forces-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/minecraft-pe-hacks-2021_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-fans-on-tiktok_GM835599320.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-quiz_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/exploit-hack-roblox-free-download-mod-menu_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-gift-cards-roblox-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-codes-to-get-free-stuff-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-into-any-ones-account-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-into-someone-accont-in-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-fashion-frenzy-game-free-online_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/20210-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/build-battle-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-pe-free-download-android_GM479516143.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_off00002f7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F7A 22412 bytes
SHA-256: c46dbca5c13e20f011bf627259b9e798679fcc7a69e2f0c5be6289775d3b9960
font_01_sfnt_off0000619b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x619B 19452 bytes
SHA-256: def08511501728ff3cd379aa12ded5d01340c6d0028ec9003d01b9dc21403a53

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