Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc5b69c109dc49c5…

MALICIOUS

PDF

33.0 KB Created: 2021-07-09 08:27:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 3361c8e19d11b4d0205c9a40266de9bb SHA-1: 512464d300579dc777a9ddc4148b20a9fed2a98a SHA-256: dc5b69c109dc49c5857264ed3b85c024586833334afd2476f7a5ae0b2cad7630
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains multiple embedded URLs and a document body that explicitly mentions "how to hack" and links to related content, strongly suggesting a lure for users interested in game exploits. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the presence of external URIs and the overall theme indicate a phishing or scam attempt, likely leading to a malicious download or further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/how-to-hack-in-arsenal-game-hack
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/minecraft-115-2-hacks_GM479516143.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/dhow-do-get-free-robux_GM431946152.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/master-coin-free-link_GM406889139.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/roblox-grand-blox-auto-money-cheat_GM431946152.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/free-robux-no-survey-real_GM431946152.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/how-to-hack-people-robux_GM431946152.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/info-de-el-hacker-de-roblox_GM431946152.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/coin-master-no-download-app-but-play-for-free_GM406889139.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/roblox-free-set_GM431946152.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/inappropriate-roblox-games-2021_GM431946152.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/how-to-minecraft-for-free_GM479516143.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/free-robux-without-verification-2021_GM431946152.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/roblox-hack-site_GM431946152.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/free-robux-com_GM431946152.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/roblox-free-plane_GM431946152.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/coin-master-hack-download-2021_GM406889139.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-app_GM406889139.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/get-free-food-in-coin-master_GM406889139.pdf
    • http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/free-robux-without-any-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_off00002c22.bin
b0f0755ce605d4392ffba47c9d21eb417d4e318c656f32b16bacf968bf13a28f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C22 22288 bytes
font_01_sfnt_off00005dc4.bin
e830d4d2850352ff681c802b50bfdb69e36cdf0dd9a2fca6f972fc848603048f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DC4 18452 bytes

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