Malicious PDF — malware analysis report

Static analysis result for SHA-256 0510d61fc5d28163…

MALICIOUS

PDF

36.0 KB Created: 2021-07-05 11:36:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 3281ca5c87c9c8e6b6eae754cf17dd56 SHA-1: 6d7c3d7a544786935d36f61ae8691db73202e9c1 SHA-256: 0510d61fc5d281636e6a0c1c84d462b64d777f63cb5e939820f38a3f7cd7714f
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external resources, many of which are SEO-optimized PDFs related to game hacks and cheats. The primary URL, http://netcdn.tw/app/431946152/roblox-hack-unlimited-robux-game-hack, suggests a lure for downloading malicious content disguised as game cheats. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/431946152/roblox-hack-unlimited-robux-game-hack
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/coin-master-free-spins-link-2021-today_GM406889139.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/coin-master-hack-apk-33-download_GM406889139.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/best-minecraft-hacked-client_GM479516143.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/minecraft-skins-free-girl_GM479516143.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/free-robux-please_GM431946152.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/how-to-download-minecraft-for-free-on-windows_GM479516143.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/roblox-emergency-response-liberty-county-hack_GM431946152.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/coin-master-free-coins-and-spins-online-tool_GM406889139.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/free-spins-coin-master-links_GM406889139.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/como-ser-hacker-en-roblox-facil_GM431946152.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/descargar-hack-coin-master_GM406889139.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/how-to-hack-in-roblox-jailbreak-2021-february_GM431946152.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox_GM431946152.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/roblox-free-hair-codes_GM431946152.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/cheat-engin-robux_GM431946152.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/free-coins-spins-on-coin-master_GM406889139.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/roblox-ultimate-driving-money-cheat_GM431946152.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/coin-master-free-spin-reward-links_GM406889139.pdf
    • https://elearning.mtsn1kotabekasi.com/__statics/gudangsoal/files/coin-master-free-spins-link-31-march-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000368f.bin
f48cec5d80353920198d31da73e42a8128b2f06001cd7fe09aaa3829ed522cca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x368F 21896 bytes
font_01_sfnt_off000066b2.bin
c21e99ebfc9f7e5f39e71a68abf279300e15561c35a4934f0c8f70bb34e99d3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66B2 19452 bytes

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