Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3452a431c8bdea3…

MALICIOUS

PDF

36.6 KB Created: 2021-07-07 01:29:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9a6e4b1f5c99b79ca65e6303bdf16a5d SHA-1: cb80d0976129c733f50f23c1167edcc6f7cc4d99 SHA-256: b3452a431c8bdea3638e7fe572ea27a40ec54e9162b3266ff1d4a7d45dc21f83
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs that are designed to lure users into clicking on links promising game hacks and free in-game items. The ML classifier strongly indicated maliciousness, and the presence of these lures suggests the document is part of a phishing or malware distribution campaign. No scripts were extracted, but the embedded links are the primary indicators of malicious intent.

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/431946152/hack-para-todos-los-juegos-de-roblox-2021-game-hack PDF link annotation
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-hack-2021-for-all-games_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/is-roblox-100-cheat-ingine-patched_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-wild-savannah-hacks_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/free-spins-for-coin-master-that-work_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/cheat-codes-roblox-xbox-one_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-hacks-for-iphone_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/coin-master-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-rare-hats-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-roblox-guest_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/twitter-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/how-to-make-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-hack-any-roblox-account-july-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/how-to-get-minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/tiktok-free-followers-2021_GM835599320.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/ant-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/coin-master-free-spins-promo-code_GM406889139.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
font_00_sfnt_off000035ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35AB 22564 bytes
SHA-256: 7cc6ef890ba7ce03d89ebffff294c6ebff34b926e52064cf32172381134525ce
font_01_sfnt_off000067ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67FF 19672 bytes
SHA-256: 4e38dd942352e1cf33300cd6a6d93e3325f8311bb2cc142d62ec06118df75266

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