Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b6ba27bd55c9d93…

MALICIOUS

PDF

48.1 KB Created: 2021-05-11 16:01:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 299cff7250c428bf8b1f8c80fc5fed99 SHA-1: e9c87dd38009f99fee4743478c7981f1dd3143b4 SHA-256: 9b6ba27bd55c9d9366c8ffffe8caf3fd979e041dee340f8fb8a503e5b5fc2df2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action lure related to game hacks and free currency, specifically mentioning 'Robux'. The primary link, https://netcdn.xyz/app/431946152/robux-free-online-game-hack, is flagged as a lure for game hacks. This suggests the document's purpose is to trick users into visiting a potentially malicious site to exploit them. No scripts were extracted, limiting the analysis to the document's content and embedded URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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/431946152/robux-free-online-game-hack PDF link annotation
    • http://perpus.sdmtenggarong.sch.id/repository/how-to-hack-coin-master-ios-jailbreak_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/minecraft-free-download-mobile_GM479516143.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/coin-master-free-spin-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/roblox-com-free-play_GM431946152.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/coin-master-hack-tool-ios_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/real-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/free-robux-place_GM431946152.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/free-spins-promo-code-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/coin-master-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/free-robux-without-human-verification-real_GM431946152.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_off00004a77.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A77 27744 bytes
SHA-256: 4e8095f443ddf773fb267d37161e104f88142fda24cacca58244bf4639301b34
font_01_sfnt_off00008a0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A0B 6636 bytes
SHA-256: 62075f0fe13502d46afb6e55e83d440c29ef4988399537df1f86e7653ce3b744
font_02_sfnt_off00009a17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A17 18208 bytes
SHA-256: 9c6e6aa5efa9903ee4d2fc70532f13b8880c04837d913a4df075592e4b137fb6

Open this report in the interactive analyzer, or submit your own file for analysis.