Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ed3a621d84592b7…

MALICIOUS

PDF

33.7 KB Created: 2021-07-06 07:18:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 540623d760d513ed5004ec3bb58d726c SHA-1: dbcdc4842f39d108fc76ccb8c11f6dc37644aeed SHA-256: 8ed3a621d84592b70050b79581160771044a52c4675f8c94c426c07fe13c5a4d
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/minecraft-aimbot-game-hack PDF link annotation
    • http://sttlets.education/senayan//repository/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/www-roblox-com-free-items_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/mcpe_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/best-free-level-7-executor-free-for-roblox-2021-august_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/cheat-codes-for-bank-tycoon-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/cheap-roblox-super-power-training-simulator-hack_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/robux-hack-generator-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/www-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-500-tiktok-views_GM835599320.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/is-minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/ash-greninja-free-shopping-in-roblox-on-roblox-shopping-shirt_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-love-free-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-minecraft-addons_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/minecraft-116-1-download_GM479516143.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_off00002f2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F2F 22368 bytes
SHA-256: 9d9a6ac8006e9d62d46582532b2daaf3cfe251f2510db832f7ecda1addac7d09
font_01_sfnt_off000060b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B8 18416 bytes
SHA-256: 7ade71fc37f91aca8989dd0df7b95c3e608aa25abc776de8806115a1be660a99

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