Malicious PDF — malware analysis report

Static analysis result for SHA-256 934c4ad593ed8d0c…

MALICIOUS

PDF

35.1 KB Created: 2021-07-04 23:36:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: e5cf53da914308f6857ff30c64027953 SHA-1: 84ee6e4c0a8df984ffd309f854e8d2c5fc0b3f0b SHA-256: 934c4ad593ed8d0c8c42a3c8469c567eba9a0b24c1e3db46d9ac3b66fb526376
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-hack-roblox-for-robux-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info/repository/survivor-hack-scrip-t-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/website-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-hack-apk-35-13_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-spins-and-coins-group_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/tiktok-free-credit-card_GM835599320.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-games-that-give-you-free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/real-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-spins-coin-master-april-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-make-your-roblox-account-cute-for-free-girl_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/youtube-how-to-get-free-robux4-on-roblox-for-ios_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_off000030c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C8 22992 bytes
SHA-256: 6149c15b7795a150ed3b360cb179785752638755a7e113317dd368f120e0f939
font_01_sfnt_off000063ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63EA 19124 bytes
SHA-256: 9f0d208e26822d6a242fed99df9fbfacecc5a4ec77afd90406185fcaa2ab8822

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