Malicious PDF — malware analysis report

Static analysis result for SHA-256 27174eb08824d170…

MALICIOUS

PDF

34.1 KB Created: 2021-07-04 09:23:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: a74731e5ca88f2ff709a27a9a5072d4c SHA-1: 4d70b3f6982b37a4a116737e75bb973631c8b827 SHA-256: 27174eb08824d1704997031bd2a3216edb238953ea61e87da27acd705c4e088d
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/479516143/minecraft-java-free-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/roblox-free-lvl-6-exploit_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/cheat-codes-for-roblox-legends-of-speed_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-online-games-similar-to-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-hack-script-walkspeed_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/why-cant-i-buy-free-hats-in-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hack-tower-battle-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-free-exe_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/mad-city-roblox-hack-pain_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-hacks-actually-works_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-account-password-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-tiktok-likes-generator_GM835599320.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-daily_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-can-you-get-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/pubg-uc-ykleme-perdigital_GM1330123889.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-unlimited-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-ios-gods-hack_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_off00002fd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FD1 23352 bytes
SHA-256: 790ce126101d404b5d2da24e84bd6a1ba69f7e62c7b2aef009751431b5b73936
font_01_sfnt_off00006320.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6320 18136 bytes
SHA-256: 6eb1f737dc26468ab321cead5519c6da0f94fa913db2fdf5dfa3628eb349cd49

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