Malicious PDF — malware analysis report

Static analysis result for SHA-256 311e60b7728d609d…

MALICIOUS

PDF

35.2 KB Created: 2021-06-27 07:01:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f9f91e676ea5b186c5a64910b8ffa649 SHA-1: 4218ee4d3d02cb248d2fea25f038af6891f35324 SHA-256: 311e60b7728d609d512a9b234ac4a3f472b6c17759a1c15e5dcf9256b3b64d12
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links and text that lure the user into clicking on a URL related to game hacks. This URL, http://netcdn.co/app/431946152/roblox-hacks-2021-epic-minigames-game-hack, redirects to a potentially malicious site. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.

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.co/app/431946152/roblox-hacks-2021-epic-minigames-game-hack PDF link annotation
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/how-much-robux-can-you-get-with-1-million-dollars_GM431946152.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/free-robux-working-genearator-w2021_GM431946152.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/free-spins-coin-master-without-completing-offers_GM406889139.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/coin-master-card-hack_GM406889139.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/play-roblox-free-online_GM431946152.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/how-to-hack-admin-in-roblox_GM431946152.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/robux-xyz_GM431946152.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/coin-master-mod-version-free-download-2021_GM406889139.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/getrobux-now_GM431946152.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/crack-x-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/coin-master-free_GM406889139.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/pubg-uc-nasl-alnr_GM1330123889.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdfIn PDF document text
    • https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/how-to-get-java-minecraft-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_off000030eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30EB 22308 bytes
SHA-256: 03f21e7b7f964c0a9793b619dbce80af5caeca4d24ff61485867a0e96dc28222
font_01_sfnt_off00006279.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6279 19808 bytes
SHA-256: 400228286022ae626e2d958a29fc5a271fb435b7f770efa1ccf2c5fcd71c1290

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