Malicious PDF — malware analysis report

Static analysis result for SHA-256 f190ac5a73d50522…

MALICIOUS

PDF

36.1 KB Created: 2021-07-03 23:18:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 9acf5ef60f0f074dd03397bff0f846a5 SHA-1: fd40b9b791bbbee9540995dbcee02f00f4486272 SHA-256: f190ac5a73d50522a8269713975dc8ab681207bf0c2dd1726e7ff995790f89cf
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to sites offering game hacks and in-game currency. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' specifically flags this behavior, indicating a social engineering tactic to trick users into visiting potentially malicious sites. While no scripts were directly extracted, the nature of the lures suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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 http://netcdn.tw/app/406889139/regal-world-coin-master-game-hack PDF link annotation
    • http://stitqi.ac.id/website/repository/hack-my-game-xyz-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-to-hack-coin-master-with-game-guardian_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-spins-and-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-free-admin-on-roblox-working_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/wurst-minecraft_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-online-hack-no-survey-no-password_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-hack-dot-xyz_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-spins-for-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-back-a-hacked-roblox-account_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-to-get-free-robux-with-no-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_002_off000033b1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33B1 24308 bytes
SHA-256: 3491fedd2e7b345d325457ad938edb621f6ef1c4ca72d7978a2e49b63d407473
font_01_sfnt_off00006a73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A73 18280 bytes
SHA-256: 5aed029aeaebf97b3b18bb1c617ca2ab564e35296fc4693c3058f9041375acb1

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