Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e35ad643cea0836…

MALICIOUS

PDF

33.1 KB Created: 2021-07-05 19:57:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e3bec1dd363781eb885d263348d63cf6 SHA-1: 16d9a48cd136eda4d8eeaae59041ea4eec88a0e8 SHA-256: 8e35ad643cea0836c1f4b8253dfc42c311cc166840f0a48325b57aae0f6b1f8e
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links and text related to free game accounts and hacks, specifically mentioning Minecraft and Roblox. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' and the presence of multiple URLs pointing to game-related lures strongly suggest a phishing or malware distribution attempt. The ML classifier also flagged this PDF with high confidence.

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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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-account-and-password-game-hack PDF link annotation
    • http://103.68.2.77/__statics/gudangsoal/files/free-minecraft-bedrock-server-hosting_GM479516143.pdfPDF link annotation
    • http://103.68.2.77/__statics/gudangsoal/files/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-100-real_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/get-free-robux_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-201-exploit-free-lvl7_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-speed-hack-in-roblox-booga-booga_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-get-more-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-admin-commands-roblox-2021_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/videos-de-como-ser-hacker-en-roblox_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/soporte-para-reportar-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-hack-roblox-games-mobile_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-mad-city-hack-download_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-get-free-robux-buy-obby-link-in-description_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_off00002f82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F82 21260 bytes
SHA-256: 6df75a7693c45d47b878362b05a341650c320c3f9586d054dda4764e69777475
font_01_sfnt_off00005d90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D90 18628 bytes
SHA-256: 8d601bd979663d62ffb88779dd8f2efa47722c91d2bfec77aeec5bd66bfe1c92

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