Malicious PDF — malware analysis report

Static analysis result for SHA-256 beac334dc927b95b…

MALICIOUS

PDF

36.1 KB Created: 2021-07-06 04:56:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7e188aaabcae01a55614d2b3b05fa420 SHA-1: 0c7cf19f32a62d3bde07798ab8c880b805ba0566 SHA-256: beac334dc927b95b869d7733734e135ab5f7c8ea7e157135d37d3b0ffb535593
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. It uses a clipboard-command (paste-and-run) lure. 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 5

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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-roblox-premium-for-free-2021-game-hack PDF link annotation
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/free-minecraft-account-and-password-generator_GM479516143.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/coin-master-free-daily-spins-today_GM406889139.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/roblox-hacks-and-cheats-2021_GM431946152.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/robux-hack-wish_GM431946152.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/minecraft-cracked-client_GM479516143.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/roblox-free-clothes-hack-2021_GM431946152.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/cm-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/poke-coins-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/free-roblox-games-unblocked_GM431946152.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/get-free-promo-codes-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/free-robux-codes-2021_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_off00003314.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3314 22668 bytes
SHA-256: 98713f9223a74aff55f5137a5045b1a812c38ecce839c5b5b12096b4e06b81f0
font_01_sfnt_off00006581.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6581 19992 bytes
SHA-256: 5d92c0ac708cb6372069878ce274a0583dd4db4fed5f7a9ab4827dfd753440d4

Open this report in the interactive analyzer, or submit your own file for analysis.