Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f470344d9e37719…

MALICIOUS

PDF

34.0 KB Created: 2021-07-06 04:23:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 74d00b6a22956b76505d10297783127d SHA-1: ab62174e281963e1743fc421b78054afd1c7a716 SHA-256: 0f470344d9e3771938654844f10deb7fc0379b0b7b0a1b31ca70da3bf5120b87
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document uses a lure of 'free Robux' and 'game hacks' to entice users to click on a link. The primary link, http://netcdn.tw/app/431946152/how-to-get-100-robux-for-free-game-hack, is flagged as a high-risk redirector. This suggests the document is designed to lead users to a malicious site for further exploitation, likely through social engineering or by serving a secondary payload.

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-100-robux-for-free-game-hack PDF link annotation
    • http://library.umla.ac.id/repository/coin-master-20-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id//repository/mcpe_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id//repository/earn-points-for-robux_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-free-spain_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-daily-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-attack-block-hack_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/minecraft-server-free-trial_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-minecraft-wallpaper_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/minecraft-free-apk-download-016-0_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-raid-hack_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/roblox-how-to-get-a-free-dominus-hat-2021-australia_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/roblox-jailbreak-hack-gui_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_off00002ef9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF9 21836 bytes
SHA-256: 07f03c22721354a4d208520acff65f62c00a770cbc798219d5808e000e1bd99a
font_01_sfnt_off00005f00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F00 19264 bytes
SHA-256: ddcaa731095bd34e6951b50a1ad93647ccdf135a8260edd799a5aaff4024c1d7

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