Malicious PDF — malware analysis report

Static analysis result for SHA-256 35615a7a800564f3…

MALICIOUS

PDF

42.1 KB Created: 2021-05-14 13:31:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b28b584cb5f9a9e1d6a6ab39e0d70053 SHA-1: 7c638c213c25fc4d7dbcaa6a7c1b28f51b207acd SHA-256: 35615a7a800564f3d3e319b5549cde6763623d17028d2e6bd56229566bcbedda
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The document displays a fake CAPTCHA or human verification prompt, a common lure to trick users into downloading further malicious content. The embedded URLs and document body text strongly suggest a theme of game cheats and in-game currency generators, indicating a phishing or scam attempt. No scripts were extracted, but the presence of external URLs and the fake CAPTCHA heuristic point towards a social engineering attack designed to lead the user to download a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/roblox-robux-hack-generator-game-hack
    • http://spentulib.com/search//repository/free-robux-com-roblox_GM431946152.pdf
    • http://spentulib.com/search/repository/roblox-free-robux-generator_GM431946152.pdf
    • http://spentulib.com/search//repository/easy-robux-hack_GM431946152.pdf
    • http://spentulib.com/search/repository/free-robux-hacks-no-verification_GM431946152.pdf
    • http://spentulib.com/search/repository/minecraft-auto-miner-hack_GM479516143.pdf
    • http://spentulib.com/search//repository/how-to-hack-and-get-free-robux_GM431946152.pdf
    • http://spentulib.com/search//repository/free-daily-spins-coin-master_GM406889139.pdf
    • http://spentulib.com/search/repository/coin-master-unlimited-spins-apk-free-download_GM406889139.pdf
    • http://spentulib.com/search/repository/roblox-com-free-robux_GM431946152.pdf
    • http://spentulib.com/search/repository/how-to-hack-roblox-to-get-free-robux_GM431946152.pdf
    • http://spentulib.com/search/repository/coin-master-free-spins-hack_GM406889139.pdf
    • http://spentulib.com/search//repository/free-robux-generator-com-roblox-hack_GM431946152.pdf
    • http://spentulib.com/search/repository/spins-coin-master_GM406889139.pdf
    • http://spentulib.com/search/repository/coin-master-free-cards-and-spin-link_GM406889139.pdf
    • http://spentulib.com/search//repository/play-minecraft-free-online-no-download_GM479516143.pdf
    • http://spentulib.com/search//repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdf
    • http://spentulib.com/search/repository/coin-master-free-spin-and-coin-link-today_GM406889139.pdf
    • http://spentulib.com/search//repository/websites-that-give-free-robux_GM431946152.pdf
    • http://spentulib.com/search/repository/coin-master-hack-app-for-iphone_GM406889139.pdf
    • http://spentulib.com/search//repository/roblox-hack-me-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000488c.bin
27eac6176903ff28069754d657f7213dc53ed3c7fa8b0a89f79ca1d4d5e0a463		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x488C 24684 bytes
font_01_sfnt_off0000816b.bin
bdac85b283ea9edec09d9f64e9cfc1f18bf7d6a92d05f58e23f3db2f02fbf028		 pdf-font-stream PDF embedded font (sfnt) at offset 0x816B 18428 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.