Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f45c1b5c3ea451b…

MALICIOUS

PDF

47.1 KB Created: 2021-05-12 15:20:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: dbf2a64330db5582e442f0c17ed3b103 SHA-1: 0eacb1c318b14315c15a115b48f3391aba54c763 SHA-256: 7f45c1b5c3ea451bee7b76657cfc86f12ff4083309e704d11e72fe9db379baee
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to sites promising game hacks and free in-game currency, a common lure for phishing or malware distribution. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it acts as a dropper or redirector to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/how-to-get-free-spins-on-coin-master-2021-ios-game-hack PDF link annotation
    • http://jdlwealth.com/images/free-spins-coinmaster_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-get-roebucks_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/coin-master-pro-hack_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/roblox-devil_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/wurst_GM479516143.pdfIn PDF document text
    • http://jdlwealth.com/images/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
    • http://jdlwealth.com/images/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/coin-master-free-spins-11-01-2021_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/aimbot-exe-roblox_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/does-roblox-premium-expire_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/roblox-mobile-hack_GM431946152.pdfIn 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_off00004b23.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B23 26276 bytes
SHA-256: 6c6d665f9feb2faa6dc81b6994e245385c7eb37441a0f4e31c82f5ef4a584aef
font_01_sfnt_off0000878b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x878B 4020 bytes
SHA-256: dbaa9c12d07f3632734605f1d5d6dee3ad5af1f57488e46d95dab68b383f08c5
font_02_sfnt_off00009512.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9512 18452 bytes
SHA-256: 1a65c7fcb9bad972bd4806159ebd9204317f4feb10db53d1e42ac086b2fa499a

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