Malicious PDF — malware analysis report

Static analysis result for SHA-256 e99a7fde8e60bfcd…

MALICIOUS

PDF

48.0 KB Created: 2021-05-11 06:03:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d21948b005dbe69bc9303650885c6b92 SHA-1: 7b63aaa90f80945894609e2d9c5d1d7387aa595c SHA-256: e99a7fde8e60bfcd81152d9fec791e55f865c5d25c628591118bd3f659d2147a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains a lure related to free Robux and game cheats, coupled with a high-risk machine learning classification and a heuristic indicating a payment redirection lure. The embedded URL points to a domain associated with distributing such lures, suggesting the document is designed to trick users into downloading a secondary payload. No scripts were extracted, but the presence of external URIs and the document's deceptive content strongly indicate a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

Heuristics 4

  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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.xyz/app/431946152/games-to-get-free-robux-game-hack
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/game-hunters-coin-master_GM406889139.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-hack-progamers_GM406889139.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/hack-to-get-free-spins-on-coin-master_GM406889139.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/free-coin-master-spins-and-coins_GM406889139.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-website_GM406889139.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-free-spins-generator_GM406889139.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-apk-hack-358_GM406889139.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/how-to-get-free-robux-on-phone-2021_GM431946152.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/roblox-speed-hack_GM431946152.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/free-robux-youtube_GM431946152.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/free-minecraft-severs_GM479516143.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-free-spin-and-coins-links_GM406889139.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-hack-iphone_GM406889139.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/free-ways-to-get-robux_GM431946152.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/links-to-free-spins-on-coin-master_GM406889139.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/free-spins-coin-master-links_GM406889139.pdf
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/roblox-troll-outfits-free_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d04.bin
8d54434d7f1836e0a1e9731b1c3112c54af401f1d4f44b37863fe37f303d55f1		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D04 27256 bytes
font_01_sfnt_off00008b12.bin
450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B12 5696 bytes
font_02_sfnt_off00009824.bin
08e91301afb793f0c8f569168ad93911c90315771ef2b58170e32493949df7cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9824 18608 bytes

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