Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c2d5040a9a468e7…

MALICIOUS

PDF

41.4 KB Created: 2021-05-11 23:03:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6b1480dac7d7cfe159f069f2cf4da31c SHA-1: 3ee41c68a2c0f26872a37b34cb8509b3cc89bc72 SHA-256: 0c2d5040a9a468e730152ceebd441f726ebd7f37c5cf5d0b285d0da9070e775c
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA lure to deceive the user into clicking a link, which likely leads to the download of a malicious payload. The embedded URL and numerous other similar URLs found in the document body strongly suggest a phishing or scam attempt related to game cheats or hacks. No scripts were extracted, but the presence of a fake CAPTCHA and external links indicates a social engineering attack.

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/406889139/coin-master-free-spins--game-hack
    • http://www.perpustakaan.unda.ac.id/repository/download-coin-master-hack-tool-v1-9_GM406889139.pdf
    • http://www.perpustakaan.unda.ac.id/repository/free-spins-on-coin-master-link_GM406889139.pdf
    • http://www.perpustakaan.unda.ac.id//repository/get-free-spins-coin-master-2021_GM406889139.pdf
    • http://www.perpustakaan.unda.ac.id//repository/bux-life-free-robux_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id//repository/hack-coin-master-without-root_GM406889139.pdf
    • http://www.perpustakaan.unda.ac.id/repository/roblox-data-breach_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id/repository/how-to-get-free-robux-easy_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id//repository/minecraft-bedrock-client_GM479516143.pdf
    • http://www.perpustakaan.unda.ac.id/repository/roblox-hack-game_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id/repository/make-robux_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id/repository/free-robux-by-watching-ads_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id/repository/coin-master-hack-tool-v1-9-apk_GM406889139.pdf
    • http://www.perpustakaan.unda.ac.id/repository/free-robux-apps-that-work_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id/repository/coin-master-hack-software_GM406889139.pdf
    • http://www.perpustakaan.unda.ac.id/repository/pixies-gigantic-coin-master-free-spins-and-coins_GM406889139.pdf
    • http://www.perpustakaan.unda.ac.id//repository/archery-master-3d-unlimited-coins-hack_GM406889139.pdf
    • http://www.perpustakaan.unda.ac.id/repository/free-robux-card-codes_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id//repository/coin-master-free-coins_GM406889139.pdf
    • http://www.perpustakaan.unda.ac.id//repository/coin-master-daily-free-spins-link-today_GM406889139.pdf
    • http://www.perpustakaan.unda.ac.id/repository/free-spins-coin-master-links-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004829.bin
d01e2753072471af9452d0a41ae3749dcb040544350679c53ac1fb4883a92bcd
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4829 24576 bytes
font_01_sfnt_off000080ba.bin
7b855ef2bb944b5b370c61480927ccad63ff31bdbf820bc1f0da9d35a10f5fb2
pdf-font-stream PDF embedded font (sfnt) at offset 0x80BA 17884 bytes