Malicious PDF — malware analysis report

Static analysis result for SHA-256 6088f592b69db847…

MALICIOUS

PDF

34.8 KB Created: 2021-07-05 19:49:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 22597e3b018a4962d33e7b4cfa1beb41 SHA-1: 2acc89f42ea1ace73816bbfd5170f8f99ae247a1 SHA-256: 6088f592b69db8474216defcc50133ab0f6aff0f1b7b6ae1e124c1db6fc2d38b
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-codes-no-verification-game-hack PDF link annotation
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/roblox-cheat-engine-the-streets_GM431946152.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/how-to-cheat-money-in-roblox-high-school_GM431946152.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/how-to-cheat-on-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/filtered15zip-roblox-hack_GM431946152.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/badge-giver-script-roblox-hack_GM431946152.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/roblox-cheat-moves_GM431946152.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/roblox-hack-phantom-forces-cheat_GM431946152.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/minecraft-realms-free-trial_GM479516143.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/roblox-hackings-2021_GM431946152.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/quel-touche-faire-pour-avoir-le-free-code-dans-roblox_GM431946152.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/how-can-i-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/how-do-i-get-items-for-free-roblox_GM431946152.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/free-robux-discord_GM431946152.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/eazy-was-how-to-hack-into-a-roblox-account_GM431946152.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/robux-generator-cheat-engine_GM431946152.pdfIn PDF document text
    • https://lms.hasyimasyaribatu.sch.id/__statics/gudangsoal/files/roblox-best-free-outfits_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_off0000300c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x300C 22468 bytes
SHA-256: ed949428682e7e83a24a0ce964b30654428b56ba7a5170329172cb4297cd325d
font_01_sfnt_off0000625a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x625A 19248 bytes
SHA-256: 7c118f3686e549365112848f1cfe4604feffe3fb38e17c4b52e8f2bf9bb9aa8d

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