Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fedb4c2cb08663a…

MALICIOUS

PDF

47.2 KB Created: 2021-06-13 22:09:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8712f94960035b7b944f190b763dfe74 SHA-1: 87c3b70edfc3c94f0fd95caba5a85e51641816d1 SHA-256: 0fedb4c2cb08663a93e5f08cac2bc6306e7b3c735db41c6d2ba1fd46376cb29b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a fake CAPTCHA heuristic, indicating a social engineering attempt to trick the user. It also includes a lure for a download button and an embedded URI pointing to a URL associated with game hacks. The document body, though partially corrupted, contains text related to 'Robux hacks' and the malicious URL, reinforcing the phishing and malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/how-do-you-hack-to-hack-on-robux-game-hack
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/hack-roblox-simulador-de-levantamiento-de-pesas-3_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/easy-robux-today-hack-no-human-verification_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/free-robux-hack-no-human-verification_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/free-tiktok-followers-no-survey_GM835599320.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/roblox-elemental-battlegrounds-hack-diamond_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/outwit-roblox-hack_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/free-roblox-accounts-generator_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/get-free-robux-2021_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/how-you-get-free-robux_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/free-robux-hacker-us_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/roblox-hack-com_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/minecraft-ps4-free_GM479516143.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-2021_GM406889139.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/roblox-free-codes-on-toys_GM431946152.pdf
    • https://www.learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/play-minecraft-free-online-no-download_GM479516143.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins_GM406889139.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/how-to-hack-for-robux-2021_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/free-tiktok-followers-no-human-verification-or-survey-2021_GM835599320.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/auto-cheat-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004e82.bin
ffead4bac774367214941b07c2a43d962eb7bb4b27a4f26a1f61194f2e3dcabf		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E82 26840 bytes
font_01_sfnt_off00008af0.bin
972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AF0 2820 bytes
font_02_sfnt_off00009490.bin
03b398458261ec7d6652681eb32ed2828ad323548bc963364424684ab42d2512		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9490 18740 bytes

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