Malicious PDF — malware analysis report

Static analysis result for SHA-256 f92c955858a8805c…

MALICIOUS

PDF

50.1 KB Created: 2021-06-11 12:03:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1ebfefe302dece3f1175a1d737c96da7 SHA-1: 1dd23d89f866d1d007e4a2a081f385ef1d488f59 SHA-256: f92c955858a8805ca4a92046e793ec6fc0c0341e757d9665520748044d82809e
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 0.9871

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 https://netcdn.tw/app/431946152/roblox-murder-mystery-2-hack-download-game-hack PDF link annotation
    • http://library.atim.ac.id/repository/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/tiktok-free-fans-cheat_GM835599320.pdfIn PDF document text
    • http://library.atim.ac.id/repository/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-oof-sound-copyright-free_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-scp-site-61-hack_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/get-free-robux-no-human-verification-real_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-cheat-engine-2021-jailbreak_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/robux-free-co_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/minecraft-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-daily-free-coins-link-today_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/will-minecraft-dungeons-be-free_GM479516143.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
stream_004_off0000520a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x520A 33736 bytes
SHA-256: 7bdcdc0270e40a123e2f503cd265dd78edce8be077e80a35b6ac7beb1d32a874
font_01_sfnt_off00009e30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E30 19432 bytes
SHA-256: b7e04d718955a99bf7de54a53af9985ac4bfca1ba7aa4b887ff2b3f3605be6ad

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