Malicious PDF — malware analysis report

Static analysis result for SHA-256 e48fd03c03914bd1…

MALICIOUS

PDF

43.6 KB Created: 2021-06-07 18:14:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 607dfd8e303813da2ee45074f939e159 SHA-1: 933758577a0c191e1205f0d551e03020538bba8e SHA-256: e48fd03c03914bd1e897b544ea2848ae015890fc570c34ecad6707a81e93e61b
82 Risk Score

Malware Insights

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

This PDF document employs a common lure of 'free game currency' (Robux) to entice users to click on an external link. The link leads to a URL that is highly suspicious and associated with game hacks or generators, indicating a probable attempt to deliver a malicious payload or phish for credentials. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/free-robux-on-chromebook-game-hack PDF link annotation
    • http://italymania.ru/images/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/i-want-free-robux_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/earn-free-robux-for-roblox-without-adblock_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/why-is-tiktok-free_GM835599320.pdfIn PDF document text
    • http://italymania.ru/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/pokemon-go-free-98_GM1094591345.pdfIn PDF document text
    • http://italymania.ru/images/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-apk-hacked-3526_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-spins_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/robux-earning-sites_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-hack-apk-android_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/pokemon-go-free-joystick-android_GM1094591345.pdfIn PDF document text
    • http://italymania.ru/images/mcpe-master-hack-coins_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_004_off0000507e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x507E 23912 bytes
SHA-256: cbc70835576ce43b30d7aef28f4c10c1fc6f9d64148cbb1ed4e8a806f1fbe035
font_01_sfnt_off0000870f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x870F 18612 bytes
SHA-256: 26fef1bfa5e6888085fad56a4c644173a6041e3ee5db6d20b27139043575abc2

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