Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a869c678e19a65e…

MALICIOUS

PDF

33.2 KB Created: 2021-07-05 19:08:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 438465eee3a4460b458b9aec782ef424 SHA-1: 17a6a54ee85c020e5ab26ab32c1c47922b1afba9 SHA-256: 7a869c678e19a65e2caecf232f54e0680afe2fdaa2ae8c379b8825430ea6818d
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/tycoon-roblox-cheat-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/free-robux-games_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-website_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-114-download_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-code-for-free-spins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-images-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-twitter_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-high-school-how-to-get-free-gear_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/cheat-all-game-money-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-trolling_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-de-fly-roblox-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-a-free-animation-in-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-hack-someones-robloc-account-for-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/fly-hack-download-roblox-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-hacked-pc-download_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/https-oprewards-com-roblox_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_off00002e8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E8B 21360 bytes
SHA-256: bd68017741058759f2aaecb290783b907eb904bf93b031f35a13cb91d25a6606
font_01_sfnt_off00005d59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D59 18748 bytes
SHA-256: 07f18855a2e32f0a1e479cb273d4fe320346cf392ec52d15d28657a0951ea2fa

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