Malicious PDF — malware analysis report

Static analysis result for SHA-256 541f58d783050ed4…

MALICIOUS

PDF

45.9 KB Created: 2021-06-03 07:59:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 4ce0124d008bc77ae53b1eef21a963b4 SHA-1: 16f19dea444bf87544ccb0e0265ca5289ff4fa54 SHA-256: 541f58d783050ed4a55e61e87595931121079db8099ec298aa911899c0f09664
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a high-confidence heuristic indicating it links to a game hack lure, specifically directing users to 'https://netcdn.online/app/431946152/forcefield-roblox-hack-cheat-engine-working-game-hack'. This suggests the document's primary purpose is to trick users into visiting a malicious site, likely for further malware delivery or phishing. The presence of numerous similar URLs further supports this malicious intent.

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/forcefield-roblox-hack-cheat-engine-working-game-hack PDF link annotation
    • http://www.js100.com/uploads/ckeditor/files/facebook-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-robux-co_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-coin-master-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-coin-master-app_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/tiktok-followers-for-free_GM835599320.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000050dc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50DC 26864 bytes
SHA-256: 99280b74d67162835dcda6ea950cf62bc78167b5dc21164cb50afcd9388f725c
font_01_sfnt_off00008da0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DA0 19396 bytes
SHA-256: 68b23ae83c8cff9089b3c404f232b1cf2b801b152dd844d1e17aa541a23166e6

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