Malicious PDF — malware analysis report

Static analysis result for SHA-256 529c4166c4199d8c…

MALICIOUS

PDF

49.1 KB Created: 2021-05-17 17:53:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e1575ebe820d85d086a84b5cbaadf5ab SHA-1: 9987a542b8c4b8820050f789134b6fef195cdfcc SHA-256: 529c4166c4199d8ce33776531808dee3f7a354521f80cf87c3fe8f8c11de32b1
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 0.8642

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/coin-master-game-hunter-game-hack PDF link annotation
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/hacks-for-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/hack-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/free-robux-come_GM431946152.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/minecraft-login-free_GM479516143.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/how-to-hack-coin-master-apple_GM406889139.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/free-multiplayer-minecraft-server_GM479516143.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/www-coinmaster_GM406889139.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/script-executor-roblox-free_GM431946152.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/coin-master-apk-hack-download_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004dc8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DC8 25144 bytes
SHA-256: e851437e437dcf1f6d3e9b6fbae3f4b6354b53c6f49a9b44b50aed6fd732543b
font_01_sfnt_off000086b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86B2 4028 bytes
SHA-256: a17c2a746d49ac23b23e38a371e32fddecfcd91b10cf42ff6155bff6b8a07e91
font_02_sfnt_off00009453.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9453 2788 bytes
SHA-256: 6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530
font_03_sfnt_off00009e43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E43 17944 bytes
SHA-256: e9797648e833dbfa666635f32d7367ca0739e8c750ac532ad8234daf7d16a172

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