Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d15314e0e0ab2c9…

MALICIOUS

PDF

41.5 KB Created: 2021-05-16 19:07:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 8e90887bc028c0e3f2070ddd45466531 SHA-1: 324fb92c09d22379101f756ba4cecf34ac7df96c SHA-256: 7d15314e0e0ab2c9516a0e7f4df194fc0f5b96c3f68a434f8c2d470b7ff678d0
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded links that redirect to websites offering game hacks and free currency. These links, such as 'https://netcdn.xyz/app/406889139/spins-for-coin-master-game-hack', are designed to lure users into downloading potentially malicious files or visiting further compromised sites. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/spins-for-coin-master-game-hack PDF link annotation
    • http://roxe2banh.com/public/upload/files/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/coin-master-free-spins-iphone-2021_GM406889139.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/wurst-115-2_GM479516143.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/free-robux_GM431946152.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/how-to-get-unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/how-to-win-robux_GM431946152.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/coin-master-free-spins-and-cards_GM406889139.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://roxe2banh.com/public/upload/files/bloxpage-free-robux_GM431946152.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_003_off000048cd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48CD 24544 bytes
SHA-256: b27f36a441f57d7962270cdb02444680bae118eceb22dd474bbfe5a4c677868c
font_01_sfnt_off0000811c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x811C 17884 bytes
SHA-256: d9bb6e06cf55f1330889047c64938b47cf9bedacd9a47abf074eac69669af404

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