Malicious PDF — malware analysis report

Static analysis result for SHA-256 64e07d3a6cfcdf92…

MALICIOUS

PDF

42.8 KB Created: 2021-05-15 04:30:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 93879710f830a68c5afe1cb07b89c703 SHA-1: 7484e4d60559552f097d885324b167b23f120e6d SHA-256: 64e07d3a6cfcdf92c0e234cc84f383093e93171acb33f6c9e4a68b109fb5bede
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically promoting 'game hacks' and 'free coins' for Coin Master. The ML classifier strongly flagged this PDF as malicious. The embedded URLs likely lead to further malicious content or phishing sites, aiming to trick users into downloading malware or divulging sensitive information.

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/coin-master-free-coins-link-game-hack In PDF document text
    • http://boliviagasenergia.com/images/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/get-free-spins-on-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-hacksco_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-fan-club_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/how-can-you-get-robux_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/easy-roblox-today_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/hack-coin-master-game-apk-download_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/free-op-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-hack-apk-app_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-game-hacks_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://boliviagasenergia.com/images/roblox-sign-in-free_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/robux-giver_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/roblox-avatar-girl_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048a1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48A1 27164 bytes
SHA-256: 8ca26913527d60f4b368d6c90117bc62226697790cbadf6638734745428b6922
font_01_sfnt_off0000866c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x866C 17880 bytes
SHA-256: 5ce88b684446e36e89a0643934549b22fce1d776877bbe9d9a558feafde7429d

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