Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb0fc9ed1097911f…

MALICIOUS

PDF

46.4 KB Created: 2021-06-03 08:16:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e265c83ba54bc9dd304d39dc0f22e532 SHA-1: 337dedcc722747eb96435a47f8ec00ff29cdb1bd SHA-256: eb0fc9ed1097911f8a068b9e0cc241ffd139d4ecc5b24e798a5108d9f06b1729
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on luring users with promises of game hacks and generators. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly suggests this malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure indicate a likely attempt to redirect users to a malicious site for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.online/app/431946152/wizard-life-roblox-spells-free-game-hack PDF link annotation
    • http://www.library.gkigadingserpong.org/repository/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/coin-and-spin-link_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/coin-master-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/coin-master-villages_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/download-hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/coin-master-hack-root_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/robux-prices_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/robux-for-surveys_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/coin-master-hack-version-2021-free-download_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/minecraft-aimbot_GM479516143.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-robux-generator-2021_GM431946152.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_004_off0000524b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x524B 26780 bytes
SHA-256: 729f2d4eb3b53c099af524c6a444090134d01a7ea607914f5e6a36a3b7cf7dc0
font_01_sfnt_off000090a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90A9 18924 bytes
SHA-256: 7b9643648bc7e9882dcbb56c2800c927820f36b162c74fa3791c08468976bc5e

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