Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7064e036b471b4c…

MALICIOUS

PDF

34.8 KB Created: 2021-06-29 09:58:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c18bdf0db70a64cc39eb243c33aa3245 SHA-1: 3f8660807425c7eecdd5f6f98dc9ffc4141d1467 SHA-256: b7064e036b471b4ce3fc912de5253c63ecdaa5cea5105652c64d725b55818781
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.co/app/431946152/roblox-invitations-free-game-hack PDF link annotation
    • http://xenonsvjetla.com/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/minecraft-bedrock-edition-hacks_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/get-your-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-com_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/fly-hack-in-roblox-vampire-hunters-2_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-pro-tiktok_GM835599320.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/minecraft-pe-apk_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/roblox-how-to-hack-into-someones-account-2021_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/take-me-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-make-stuff-free-on-roblox-using-inspect_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/minecraft-dungeons-free-download_GM479516143.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_off00002f0d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F0D 23124 bytes
SHA-256: 27fb9d482cc242307a562cbc9f01367f9d3a2bfa6d7a87a1e61db2b1b7028f22
font_01_sfnt_off0000630a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630A 18988 bytes
SHA-256: ca881a76187cfe50a8f7b691ec202bc134aaa970e3f76090f2b9863b1349d7a2

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