Malicious PDF — malware analysis report

Static analysis result for SHA-256 f04f899ced140835…

MALICIOUS

PDF

42.0 KB Created: 2021-05-16 15:36:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-12
MD5: d1783a6fdcecbc055f1a8ed1468591a5 SHA-1: cabeb2dd0463d583c724b2f9c37c87ac024e74cf SHA-256: f04f899ced140835dec8e7336ef3cbc1769c347475b086b0a192e4dc2d8996cd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting 'free game hacks' and currency. The primary link identified, https://netcdn.xyz/app/406889139/free-spins-for-coin-master-2021-game-hack, is flagged as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering lure designed to redirect users to potentially harmful content or further malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/free-spins-for-coin-master-2021-game-hack In PDF document text
    • http://www.metinadistribuzione.com/images/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/robux-download_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/free-spins-coin-master-links-app_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/coin-master-free-400-spin-link_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/coin-master-hacks-for-spins_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/coin-master-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/free-100-robux_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/coin-master-free-spins-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/how-to-hack-coin-master-apkmody_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/free-minecraft-account-and-password-2021_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_003_off00004a05.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A05 24468 bytes
SHA-256: b9cab540d1bf19a2deb239b1b381119d312451faef1c5ef2d3c64250bd243e07
font_01_sfnt_off000081d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81D3 18288 bytes
SHA-256: 66febbde5b4b2b6a44609229e8681f3f0581fff3ed5f82ed8e3d83342858c217

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