Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e35cf3b9b590037…

MALICIOUS

PDF

44.4 KB Created: 2021-06-03 10:00:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: dafedfaba48d0dcd01f77c8e800c6bd3 SHA-1: ab106c028fa45c10ec02ae5f9147c5601a2291b2 SHA-256: 0e35cf3b9b5900371b1d690bf91118837575bf84f6b1ac71cb76da152e1c2b84
82 Risk Score

Malware Insights

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

The PDF document contains multiple links and a call-to-action phrase, luring the user to click on a URL that promises a game hack. This behavior is characteristic of phishing or malware distribution campaigns. The ML classifier also strongly indicated maliciousness.

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-app-for-iphone-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-account_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-minecraft-bedrock-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/tiktok-likes-for-free_GM835599320.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-free-android_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-make-a-minecraft-server-for-free-java_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-tiktok-likes-75_GM835599320.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-roblox-website_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-332-apk-free-download_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-coins-coin-master-hack_GM406889139.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
stream_004_off00005182.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5182 25520 bytes
SHA-256: 674d0462e41227d46303183086771952338bb7435925f22aeb89aa39371aaab6
font_01_sfnt_off00008b67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B67 18220 bytes
SHA-256: 839fd5949bb49b5044eb4b433cc9049edf304667089f82b00e0313599dbfb70d

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