Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c52ec9ce5433c54…

MALICIOUS

PDF

42.7 KB Created: 2021-05-11 05:42:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7073b37638b310da14ffc56d30d75677 SHA-1: a3cdf51d6618edc7bb391c929be02da8d92e82b8 SHA-256: 6c52ec9ce5433c547601daeafcd85c50577dfee168336ccf20e127c7d2c785cc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with a malicious link. The primary external URI points to a URL associated with game hacks, further supporting the malicious intent. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it is designed to lead the user to download or execute further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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 https://netcdn.xyz/app/431946152/roblox-tracker-game-hack
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/free-spins-coin-master-android_GM406889139.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/free-minecraft-hacks_GM479516143.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts_GM431946152.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-blogspot_GM406889139.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master-cheat_GM406889139.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/roblox-free-items_GM431946152.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/how-to-earn-robux-for-free-2021_GM431946152.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/minecraft-java-edition-free-code_GM479516143.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/minecraft-java-free-download_GM479516143.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/free-robux-that-actually-works-2021_GM431946152.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/download-minecraft-free-hiapphere_GM479516143.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/com-roblox_GM431946152.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/roblox-robux-hack-generator_GM431946152.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/coin-master-hack-account_GM406889139.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/robux-miner_GM431946152.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/chisel-and-bits-mod-pe_GM479516143.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-for-real_GM431946152.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/daily-free-spins-for-coin-master_GM406889139.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/coin-master-free-spin-reward-links_GM406889139.pdf
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/earn-free-robux-today_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c13.bin
7149e81e14bcd0504b0cf9331e70fa77b697bd2b80442cfd414179038ec4d2f8		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C13 24872 bytes
font_01_sfnt_off00008494.bin
72f8522d23e1124dd8ed7fdd7308c58d02d03d2ede9b00fcb85fd7d8fd1c97df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8494 18184 bytes

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