Malicious PDF — malware analysis report

Static analysis result for SHA-256 0198dd6c57ffa230…

MALICIOUS

PDF

34.8 KB Created: 2021-07-05 10:55:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f25610cb23087ef116712b9a504b5184 SHA-1: a7fd03eb68853a191b1f924ff79a50170e7356b7 SHA-256: 0198dd6c57ffa230de9ed1e678dbe66b7b33c8e584b4ab8e36fdb2b054ff1d62
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link disguised as a game hack generator, which is a common lure for phishing or malware delivery. The ML classifier strongly indicated maliciousness, and the primary URL points to a suspicious domain associated with game cheats. No scripts were extracted, but the document structure and embedded URL suggest a social engineering attack to redirect users to a potentially harmful site.

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.tw/app/406889139/free-spins-and-coins-from-coin-master-game-game-hack PDF link annotation
    • http://digilib-pps.unja.ac.id/repository/minecraft-clipart-free_GM479516143.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/les-commandes-dadmin-roblox-les-plus-cheat_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/everything-free-on-roblox-catalog_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-hat-roblox-catalog_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/can-you-hack-using-developer-console-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/robuxian-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/tiktok-free-quotes_GM835599320.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/banador-roblox-free_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/how-to-call-roblox-for-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/robux-hack-2021-working_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-robux-and-tickets-on-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/roblox-free-draw_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-accounts-logins-and-passwords-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/roblox-account-hacker-tool_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-face-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/how-to-get-free-robux-no-hack-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_off0000310b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x310B 22924 bytes
SHA-256: b9588868ec3dff0c6d48f5d4c26a7802040b85ecfab3b67dce92ca7261057ba9
font_01_sfnt_off00006493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6493 18608 bytes
SHA-256: 2dc78bc9bcc4ebdd572802885893151c1e8df498be6c3c290a8f513ae15145fe

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