Malicious PDF — malware analysis report

Static analysis result for SHA-256 52070e655ef4efbc…

MALICIOUS

PDF

35.2 KB Created: 2021-07-05 16:57:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 4e2bf54771d1e02b76b4315399583ff9 SHA-1: 1e8c62a90d8a4f47c3b19e31d4f7d4172b64d4a6 SHA-256: 52070e655ef4efbc06197bbe561b6ef975dccf5e5508eb10d5ceac6c1a96b35c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/how-to-get-free-stuff-on-roblox-2021-game-hack PDF link annotation
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/download-roblox-robux-hack-tool_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/xonnek-hack-de-roblox_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/robux-hack-script-pastebin-2021_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/easy-boy-fat-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/tumbnails-roblox-free_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-free-coins-and-spins-online-tool_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-get-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-get-more-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/el-mejor-hack-de-roblox-del-mundio_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/robux-4all-cool-hack_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-roblox-clothes-codes_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-robux-real_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-free-spins-may-11-2021_GM406889139.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_off000031a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31A3 22276 bytes
SHA-256: 23f7db9dd773d19b40e1ab4bb638d1eb8b448c08c29a4f6654efcfdc1cb8589c
font_01_sfnt_off00006342.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6342 19460 bytes
SHA-256: 8426f038795ea5d8a795bf0375a678dc031ed66a2a703316a826a74a76c6ece6

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