Malicious PDF — malware analysis report

Static analysis result for SHA-256 22c7cd977fdbf777…

MALICIOUS

PDF

34.2 KB Created: 2021-06-22 23:17:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a4fc1a002c7f19501a0559623edf5bee SHA-1: c0ccbb31d63cc976921c0267f6c0e75e499fb6a0 SHA-256: 22c7cd977fdbf777961830bd1f5a2e76f0698e2aba06a7ff288e5a7fc60d67c1
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 0.9980

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 http://netcdn.co/app/431946152/island-royale-roblox-hacks-2021-game-hack PDF link annotation
    • http://elektrofahrspass.de/images/make-free-robux_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/change-this-setting-to-get-2021-free-robux_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/www-robux_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/coin-master-hack-2021-link_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/freer-pro-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://elektrofahrspass.de/images/roblox-hack-robux-420_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/roblox-girls-clothing-cheats_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/roblox-redeem-card-codes-hack_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/how-to-hack-roblox-accounts-with-console_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/coin-master-3rd-village-free-2021-gift-card_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
    • http://elektrofahrspass.de/images/hack-robux_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/free-tiktok-followers-no-verification-or-survey_GM835599320.pdfIn PDF document text
    • http://elektrofahrspass.de/images/hack-coin-master-game-download_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/roblox-free-hack-injector-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
font_00_sfnt_off00002fab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FAB 21636 bytes
SHA-256: a166ad1c4b53bca562188a3cc392b8fe2cf14e8467d255847092c6dda297a727
font_01_sfnt_off00005f4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F4D 19412 bytes
SHA-256: 7d4ff80bac1ef2c9a4a76b3d71f89f002f0fa8fd49b58a3f80ab3f52f3d49d21

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