Malicious PDF — malware analysis report

Static analysis result for SHA-256 170723a60a50581c…

MALICIOUS

PDF

45.5 KB Created: 2021-06-03 10:43:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c0787c95f9a7a7d91b932bea307dbf17 SHA-1: a01576a8e5607fb89fcefeec2f19e493ae2f3a0e SHA-256: 170723a60a50581cab40b324f4f2fa650e93e4165ea1658da840d9cb19936e5d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a prominent link to a 'roblox-login-hack-game-hack' URL, identified as a lure for game hacks. This suggests the document is designed to trick users into visiting malicious sites, likely for credential harvesting or malware distribution. While no scripts were directly extracted, the PDF structure and embedded links indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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/roblox-login-hack-game-hack PDF link annotation
    • http://perpus.wdh.ac.id/repository/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/change-roblox-username-free_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/fbchampion_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/minecraft-112-hacked-client_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/minecraft-images-free_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-robux-games_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-hack-ios-without-verification_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/lazyblocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/roblox-arsenal-hacks-download_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_off00005149.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5149 27196 bytes
SHA-256: 8661a4a18e4b39856781cf7fc316ca245005674705e131d74ea388ff9970937b
font_01_sfnt_off00008e43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E43 18592 bytes
SHA-256: 4594c9d52aa6913ba89b547defae6e50b5d648d55ef93ab0faf484389542556d

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