Malicious PDF — malware analysis report

Static analysis result for SHA-256 592e385ce136ab54…

MALICIOUS

PDF

43.8 KB Created: 2021-05-14 16:09:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: e56ec5ade1f0127580997a54b3549d6f SHA-1: a4c482d10aabdc9e38344ed754ea05137ca59d02 SHA-256: 592e385ce136ab545f3f2d0a41b368ac4999fae88163439ce236a5bcb92df674
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious websites, masquerading as game hacks or generators. The heuristic firings indicate a critical risk due to malicious redirector infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to lure users to potentially malicious content, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/master-coin-free-spin-daily-game-hack In PDF document text
    • http://italymania.ru/images/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/moon-active-games_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-hack-apk-android_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/free-coins-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/how-to-get-free-hats-on-roblox_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/haktuts-coin-master_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-hack-2021_GM406889139.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_off00004802.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4802 24120 bytes
SHA-256: c841ee1777fa07bddd5acd163145e4ff00106dacd086a58abfe55cfb01628de6
font_01_sfnt_off00007ea4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA4 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008856.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8856 18308 bytes
SHA-256: 29cb14730145ee7b34c09c890f7b8837377acbe26d0b8b5df788708214c202fb

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