Malicious PDF — malware analysis report

Static analysis result for SHA-256 725182919e4c3187…

MALICIOUS

PDF

34.2 KB Created: 2021-07-03 11:21:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 9228819786c81ed18431451791a81bbd SHA-1: 1b9e75dc2242767b3e4962674b0133ffae194697 SHA-256: 725182919e4c31877d2019afc7860b64b4a47bab8399262fb4ab49132a6a7420
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document uses a lure of 'Free Robux Accounts' and game hacks to entice users to click on an embedded link. This link, http://netcdn.tw/app/431946152/free-robux-accounts-game-hack, is identified as a high-risk redirector. The document's structure and the presence of external links suggest it is designed to lead the user to a malicious site, likely for further exploitation or malware delivery.

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/431946152/free-robux-accounts-game-hack PDF link annotation
    • https://lib.bunghatta.ac.id/app/repository/how-to-get-infinite-robux_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-jailbreak-hacks-for-money_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-make-a-roblox-shirt-for-free_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-robux-no-human-verification-jeuxvideocom_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/minecraft-free-apk_GM479516143.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-hack-pour-passer-a-travers-les-murs-2021_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-roblox-game-cards-no-survey_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/glitch-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/get-robux_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/best-free-roblox-flight-simulator_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/pastebin-com-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/coinmaster-spin-ml-free_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-roblox-andoid-robux-hac_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/hilton-hotels-lua-hack-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/tps-new-tools-free-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/firestone-training-map-free-model-leaked-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-without-cheat-engine_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-slender-mans-revenge-reborn-hack-script_GM431946152.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
font_00_sfnt_off00003056.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3056 22144 bytes
SHA-256: da186d0302306a9b514540e0f7cf18fbeaf18b8599894d19081e8a1a1af47c16
font_01_sfnt_off00006158.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6158 18820 bytes
SHA-256: 9247447a3c3765c463ad34d06656dabe45291e7d100ded84caf3f858f3985503

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