Malicious PDF — malware analysis report

Static analysis result for SHA-256 976b80462fb6e6c5…

MALICIOUS

PDF

55.1 KB Created: 2021-05-15 12:03:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 1045686c28eeeea343b1018c56fa0337 SHA-1: ffa0b9b99ab41d5293bf1460e50f9f6a7808eeef SHA-256: 976b80462fb6e6c5af59a32462570be9467aae04013e81a77fdfe9d1e36095cb
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document employs a 'ClickFix' social engineering tactic, instructing the user to press Win+R or paste a command into a terminal, likely to bypass macro restrictions. It contains numerous links to websites offering game hacks and free in-game currency, such as 'if-you-delete-minecraft-can-you-redownload-it-for-free-game-hack'. The primary malicious URL identified is https://netcdn.xyz/app/479516143/if-you-delete-minecraft-can-you-redownload-it-for-free-game-hack, which likely serves as a redirector to a malicious payload or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8874

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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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/479516143/if-you-delete-minecraft-can-you-redownload-it-for-free-game-hack PDF link annotation
    • http://hindicenter.com/images/roblox-army-robux_GM431946152.pdfIn PDF document text
    • http://hindicenter.com/images/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://hindicenter.com/images/free-coins-and-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://hindicenter.com/images/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://hindicenter.com/images/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://hindicenter.com/images/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://hindicenter.com/images/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://hindicenter.com/images/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • http://hindicenter.com/images/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://hindicenter.com/images/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://hindicenter.com/images/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://hindicenter.com/images/coin-master-new-link-free-spin_GM406889139.pdfIn PDF document text
    • http://hindicenter.com/images/how-to-get-free-coins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://hindicenter.com/images/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://hindicenter.com/images/hack-version-of-coin-master_GM406889139.pdfIn PDF document text
    • http://hindicenter.com/images/hack-coin-pro-coin-master_GM406889139.pdfIn PDF document text
    • http://hindicenter.com/images/roblox-comcom_GM431946152.pdfIn PDF document text
    • http://hindicenter.com/images/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://hindicenter.com/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://hindicenter.com/images/free-gifts-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E11 30692 bytes
SHA-256: a65940254c6034ea225de41cd0910b3a0b5f38e92d2477e7e66e4a188694e3a0
font_01_sfnt_off00008bc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BC9 8196 bytes
SHA-256: b847c0aae696470f781bd3b40e110ccea55f2622ea222d25cff06ef850aeea8d
font_02_sfnt_off0000a5cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5CC 4232 bytes
SHA-256: ab6320ab342704d2c5943abfba82ed4837bf2da871c91621741fd4cfd15c6ed5
font_03_sfnt_off0000b459.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB459 18592 bytes
SHA-256: 18962371c76fb720bd28e976e47cbcb39c5d47198828412c269f5aef32a49cfd

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