Malicious PDF — malware analysis report

Static analysis result for SHA-256 64744e25438b170c…

MALICIOUS

PDF

34.7 KB Created: 2021-07-09 23:19:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ee0534ef3438532b4a57b76f785c3011 SHA-1: b16f6720286c2fe5b6638fd141ea33a3ac2c6837 SHA-256: 64744e25438b170c79080a71eb2703268a4216f7c8159aa567e955ba20bdabec
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are structured as SEO-optimized PDF files offering free game-related items and accounts. The primary URL http://netcdn.tw/app/479516143/minecraft-ps4-code-free-game-hack suggests a lure for free game content, likely a phishing or malware distribution attempt. 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/479516143/minecraft-ps4-code-free-game-hack
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/free-minecraft-java-account_GM479516143.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/how-to-get-free-robux-without-downloading-apps_GM431946152.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/free-roblox-royale-high-diamonds_GM431946152.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/free-robux-roblox-promo-codes_GM431946152.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/how-to-get-free-roblox-iteams_GM431946152.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/how-do-you-become-a-hacker-on-roblox_GM431946152.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/coin-master-fun-free-spins_GM406889139.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/tiktok-free-fans_GM835599320.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/safe-hack-for-coin-master-android_GM406889139.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/free-download-coin-master_GM406889139.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/roblox-hack-site_GM431946152.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/free-robux-no-sign-up-no-survey_GM431946152.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/script-hack-prison-life-roblox_GM431946152.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/free-robux-generator-com-roblox-hack_GM431946152.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/get-free-robux-today_GM431946152.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/coin-blogspot_GM406889139.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/how-to-download-minecraft-for-free-on-pc_GM479516143.pdf
    • https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/how-to-get-free-robux-no-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000325c.bin
d8a0d161d95df80355f25435a173eecbe4a5055f09938aed9313f7b28b276b09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x325C 22532 bytes
font_01_sfnt_off00006488.bin
f91d6cfcaf22a5cfd77e6411856631eeda4e5f2ba6a8e74a28f1cff138b8d002		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6488 18388 bytes

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