Malicious PDF — malware analysis report

Static analysis result for SHA-256 0be653ec6792ea20…

MALICIOUS

PDF

47.6 KB Created: 2021-05-17 23:07:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 04dc9ceaccff61a33c75869438fff1d3 SHA-1: 08547cb7eb6f94d11c936498a68f27744c0df34e SHA-256: 0be653ec6792ea20286097a949542c692f9900db2bb4c5697a8201c2de6ab72d
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 0.9013

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.xyz/app/479516143/minecraft-bedrock-hacks-windows-10-game-hack PDF link annotation
    • http://viemeo.fr/images/minecraft-linux-free_GM479516143.pdfIn PDF document text
    • http://viemeo.fr/images/free-roblox-accessories_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://viemeo.fr/images/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://viemeo.fr/images/free-spins-coin-master-app-iphone_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/coin-master-free-download-app_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/install-coin-master_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/coin-master-game-free-spin-download_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/roblox-game-free-download_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/hack-coin-master-game-apk_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/is-coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/coin-master-link-today_GM406889139.pdfIn PDF document text
    • https://youtuIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b45.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B45 28744 bytes
SHA-256: 66f7b252577fd503be421c6d85c9644c63328805a11672305ffe95aa879a643f
font_01_sfnt_off00008b8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B8A 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off0000959a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x959A 18908 bytes
SHA-256: 18cbca0e50f7f5b28a778cfbd569d1baac665ff56cf18fe3f86cb3ac4da3e820

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