Malicious PDF — malware analysis report

Static analysis result for SHA-256 296a8c93ce724c9b…

MALICIOUS

PDF

34.5 KB Created: 2021-07-05 21:08:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 0645707f7948212947683dcefb52a52d SHA-1: 598d1c36dfec128d3c6fd65e334e721eb3fa0faf SHA-256: 296a8c93ce724c9bd5d2719e4f893e92de8acc7690008ffa05dac1ca7498ddd0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains heuristics indicating it links to a game hack redirector, specifically mentioning 'Coin Master Hack Version Download'. The document body and embedded URLs reinforce this lure, directing users to external sites that likely host malicious payloads or further phishing attempts. The ML classifier strongly flagged this PDF as malicious.

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/406889139/coin-master-hack-version-download-game-hack PDF link annotation
    • http://laboratorium.sman2metro.sch.id/repository/como-activar-hacks-en-roblox_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/minecraft-114-4-download_GM479516143.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/free-roblox-cards-pin-number_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/how-to-earn-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-robux-android_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/freespinandcoin-blogspot_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/microsoft-roblox-rewards_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/how-to-get-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/reddit-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/coin-game_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-robux-generator-for-roblox-2021_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_off00003035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3035 22636 bytes
SHA-256: b32c63f06ae37622b8db3856c9cc9f8836eaf66dcd1f4c5e0234be714981eb20
font_01_sfnt_off000062b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B3 18720 bytes
SHA-256: 210f7e42d7e26a7b50374b7f571f544979918233c48f1eb5c911e85e040a31e1

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