Malicious PDF — malware analysis report

Static analysis result for SHA-256 49aac430f675f3dc…

MALICIOUS

PDF

35.6 KB Created: 2021-07-09 17:13:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: c6f0cf24f2079b26eee456109f2cdd5d SHA-1: af266dbe83e3959b145edea437ff1e4599a03360 SHA-256: 49aac430f675f3dc3a960d169e4727e0536f056c00302a23ef4f1624652321bc
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-robux-obby-2021-game-hack PDF link annotation
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/wurst-client-112-2_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/coin-master-twitter_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/moonactive-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/free-bedrock-minecraft_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/how-to-get-free-stuff-for-your-avatar-in-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/robux-hack-no-download-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/get-robux-free-for-reel-no-get-someting-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/admin-hacks-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/roblox-dynamic-ship-simulator-iii-money-hack_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_off000034a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34A0 21988 bytes
SHA-256: 90a0f92fa3f0caa708b2df577e54d7f1a39ac4d1db2a9edf70de0fddc68337d6
font_01_sfnt_off00006571.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6571 19300 bytes
SHA-256: b480e57f7d5b556cc4767b9b3cb0f03098c0ecbb180f8a5a4d5272ae73f4a644

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