Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c2392960bee846b…

MALICIOUS

PDF

33.6 KB Created: 2021-07-10 01:53:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9ecf14163c3e87c6ecc11dc37c03a3ed SHA-1: 213173f44c5802a7a5d516c83ae6b4dfe07aea3e SHA-256: 1c2392960bee846b94256aaf8be377661ce772175985224689f7110fde830459
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/406889139/free-spins-for-coin-master-ios-game-hack PDF link annotation
    • http://mtsn31jkt.com/__statics/gudangsoal/files/cheat-roblox-2021-btools_GM431946152.pdfIn PDF document text
    • https://mtsn31jkt.com/__statics/gudangsoal/files/free-roblox-clothes-for-your-avatar_GM431946152.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/free-robux-hack-download-no-survey_GM431946152.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/hack-apk-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/roblox-us-hack_GM431946152.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/free-robux-without-installing-anything_GM431946152.pdfIn PDF document text
    • https://mtsn31jkt.com/__statics/gudangsoal/files/coin-master-online-hack-download_GM406889139.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/breaking-point-roblox-hack_GM431946152.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/robux-for-surveys_GM431946152.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/free-roblox-clothes-codes_GM431946152.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/http-bitly-coin-master-free-2021-spins_GM406889139.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • https://mtsn31jkt.com/__statics/gudangsoal/files/hack-robux-no-human-verification-no-download_GM431946152.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/roblox-free-privat-server_GM431946152.pdfIn PDF document text
    • https://mtsn31jkt.com/__statics/gudangsoal/files/roblox-generator-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/earn-points-for-robux_GM431946152.pdfIn PDF document text
    • https://mtsn31jkt.com/__statics/gudangsoal/files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/roblox-games-that-give-you-free-robux_GM431946152.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
stream_002_off00002d5f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2D5F 22988 bytes
SHA-256: f8bf54b9eb66fbf37f67edd3f7efae7a1f3bb839e87f89f52018068a763b38f5
font_01_sfnt_off0000611c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x611C 18176 bytes
SHA-256: a5a25b2a03d060ab334b2318d32d1d5929522fb18c09f7a175bdb421134f7343

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