Malicious PDF — malware analysis report

Static analysis result for SHA-256 9349fa32a8acd8b2…

MALICIOUS

PDF

43.6 KB Created: 2021-05-19 03:32:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 466e9a646fd594b5a6908372d87a4740 SHA-1: 1f2c79b5da7f64a6c8b4506ada80a203ef623df9 SHA-256: 9349fa32a8acd8b2705f238665996e6c503dc1d48bf5bb164e3e2ddc8848c817
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 to trick the user into interacting with a malicious link. This is a common social engineering tactic to deliver malware or lead users to phishing sites. The embedded URL and numerous other similar URLs suggest a campaign focused on generating fake engagement or distributing unwanted software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/robux-generator-that-works-game-hack PDF link annotation
    • https://lib.btkljogja.or.id/repository/oprewards-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-spins-october-28-2021-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-com-hack_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-roblox-com_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/rbx-place-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-hack-app-android-download_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/robux-hack-tools_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-free-spins-on-coin-master-2021-ios_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/como-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-level-3_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-hack-with-facebook-login_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-free-coins-and-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b3a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B3A 25728 bytes
SHA-256: cc17ab5966064993ea132c62f0116a350ca7fe37538a317b98dc5e614be8e983
font_01_sfnt_off000086b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86B4 18716 bytes
SHA-256: 15f7490cbb63360669c63d4e0309a96c1c9c92749ad38ff6b0bd5fc046bedbd7

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