Malicious PDF — malware analysis report

Static analysis result for SHA-256 14a448f774c761c3…

MALICIOUS

PDF

44.3 KB Created: 2021-06-09 02:53:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fcd75366392176e8c40963c42dde63fe SHA-1: c8cdeaf0d84df94749422001d64ebd9c6a45a0d4 SHA-256: 14a448f774c761c3fd47d08ac974dd8308520b24c68a6072011c0a7279298852
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for game hacks and free in-game currency, presented as a fake CAPTCHA or download button. It links to a URL that likely serves as a redirector to malicious content. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to trick users into visiting potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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/edm-reaper-free-robux-game-hack PDF link annotation
    • http://ratchadatitan.com/UserFiles/File/free-spin-and-coin-blogspot_GM406889139.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/minecraft-clipart-free_GM479516143.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/minecraft-free-download-android-apk_GM479516143.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/free-robux-no-personal-information_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/coin-master-daily-rewards-link_GM406889139.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/win-free-robux_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/minecraft-free-exe_GM479516143.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/how-you-get-robux_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/how-to-get-free-robux-using-promo-codes_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/free-robux-games-on-roblox_GM431946152.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_004_off00005016.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5016 25068 bytes
SHA-256: e0d1c115c0fabddac55914013eeeeff1c449109c0ef202afbf308b9bb628774c
font_01_sfnt_off000088e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88E9 18852 bytes
SHA-256: bbebb3826ae11e8601cbfcde3f85605b79f1a1780763f35facd8688a6559bbb5

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