Malicious PDF — malware analysis report

Static analysis result for SHA-256 890432f68f6058ef…

MALICIOUS

PDF

33.8 KB Created: 2021-07-08 00:15:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 8cf37cc3d2822a76b87f87c4c8636d1b SHA-1: 9020cdab5a73e853b6d41ec5aa6ae7c511b9316b SHA-256: 890432f68f6058ef492ac9cf3dd2bf5975a2103b0263d0eaf1f6c953f15283e1
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/479516143/free-minecraft-mods-for-ps4-game-hack PDF link annotation
    • http://elibrary.perludem.org/repository/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-hack-roblox-with-nmap_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-sin-vertificacion_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-to-hack-someone-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-create-texture-hack_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-meep-city-free-games_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/roblox-robux-hack-website_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/legit-coin-master-hack-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-get-free-robux-tablet-easy-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/roblox-hack-robux-2021-pc-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/alone-battle-roytale-roblox-hacks-script-copy-aimbot-esp_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-to-hack-roblox-wikihow_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-daily-free-spins-link-today-haktuts_GM406889139.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_off00003167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3167 21720 bytes
SHA-256: 6b88c0de7d658bd1093a11c0c21c7e3381ddad69495d480b74c3d6d5366783d2
font_01_sfnt_off0000613b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x613B 18388 bytes
SHA-256: 94f5e3b5f19579b0f617ee19a3ad83c9cf7751af95d9a845380af6d54d45161e

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