Malicious PDF — malware analysis report

Static analysis result for SHA-256 f522a568ee8edfa4…

MALICIOUS

PDF

36.0 KB Created: 2021-06-27 01:46:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: e5e4c8937e96e4e7c681000283b2bcf2 SHA-1: decb6b8e0ea4e78e41c9555cde0d61aa7197c0ec SHA-256: f522a568ee8edfa47d245b720354eb5d213850ec6e7391e6e0d819a8fe150ef3
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.co/app/431946152/robux-hack-sin-verificacion-de-humano-game-hack PDF link annotation
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/free-robux-come_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/new-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/free-robux-mod_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-tricks-and-hacks_GM406889139.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-hack-android-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-free-spins-generator_GM406889139.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/fly-hack-download-for-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/how-to-get-free-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-gifts_GM406889139.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/coin-master-free-spins-link-2021-iphone_GM406889139.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/minecraft-free-download_GM479516143.pdfIn PDF document text
    • https://elearning.mtsmanusaci.com/__statics/gudangsoal/files/easy-coin-master-hack_GM406889139.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_off00003437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3437 22564 bytes
SHA-256: d95f8462c29a4e3b92caeb1a23d23afe895b6ced75ef1c87e2fc6b822736b9f0
font_01_sfnt_off000066db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66DB 19404 bytes
SHA-256: 8ef196b438b10b5deae6922d114cda1cf4a7d2ee3358ccf91b41f9707522671d

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