Malicious PDF — malware analysis report

Static analysis result for SHA-256 03a0503aca4f2265…

MALICIOUS

PDF

35.4 KB Created: 2021-07-06 08:09:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9d9272e3751f2ed524997e8e38d3ec55 SHA-1: 9459ff78fd09c4e03256234574fe9c4550d33f45 SHA-256: 03a0503aca4f22650453fa3e0525ace723c654d992d31e7f680e1748758493ba
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/free-roblox-usernames-and-passwords-game-hack PDF link annotation
    • http://vetmed.fkh.unair.ac.id/repository/videos-of-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/coin-master-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/inf-jump-roblox-hack_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/free-promo-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/free-roblox-card-codes-2021-no-survey-no-download_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/roblox-free-draw_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/free-robux-generator-no-human-verification-pc_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/tiktok-likes-free_GM835599320.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/free-robux-capatcha_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/hack-roblox-jailbreak-774_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/clients-minecraft_GM479516143.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/good-free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/how-to-hack-someone-in-roblox-without-their-password_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/el-mejor-hack-para-juegos-de-roblox_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_off00003234.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3234 22508 bytes
SHA-256: 1a6e61b6ef72b3c4a60763d2aa94463eaac4e1027db1610cf08c403fd42f2720
font_01_sfnt_off0000648e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x648E 19404 bytes
SHA-256: b4d7e0718cadd6570b52e100aa7612a9b6b6c25f53d59374595f6af98c828d97

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