Malicious PDF — malware analysis report

Static analysis result for SHA-256 5726c57bbfcb9fa0…

MALICIOUS

PDF

49.0 KB Created: 2021-06-11 12:11:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e2676af91ec9d4c491d486069260fded SHA-1: 1038282d48f18d793f1ebb3d13a133b7684d11b1 SHA-256: 5726c57bbfcb9fa09d776273632f04df364e8eeffedda74985e7c81727eaed35
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA or human verification prompt, a common social engineering tactic to trick users into interacting with malicious links. The embedded URL and numerous other URLs point to sites offering game-related cheats or exploits, reinforcing the lure. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9871

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.tw/app/431946152/free-robux-roblox-logins-password-game-hack PDF link annotation
    • http://jackson-pr.com/images/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/roblox-microsoft-rewards_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/minecraft-complete-handbook_GM479516143.pdfIn PDF document text
    • http://jackson-pr.com/images/roblox-com-free-play_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • http://jackson-pr.com/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/how-to-get-the-catalog-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/how-to-get-free-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/pubg-uc-ykleme-hile_GM1330123889.pdfIn PDF document text
    • http://jackson-pr.com/images/free-roblox-logo-t-shirt_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/free-robux-toffu_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/robux-free-online_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/minecraft-free-download-android-apk_GM479516143.pdfIn PDF document text
    • http://jackson-pr.com/images/how-to-get-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/how-to-get-free-robux-without-human-verification_GM431946152.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_off000050ff.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50FF 31612 bytes
SHA-256: 1e97b9d65568543518d8b0bd95147858ff08d0d78c6f23a6a7ffd85e88c1aac9
font_01_sfnt_off00009a89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A89 19216 bytes
SHA-256: 296cec1fe0fba939b4b27a7c7c6c0d4083f5eba10cfacc55d5882488c90f8f6f

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