Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f0c0bc08319ec96…

MALICIOUS

PDF

34.1 KB Created: 2021-07-09 13:11:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e3efc076c433c5ce324eb2f9ba03ac34 SHA-1: b59f73b9b33639897e34bd626b776729e545ac62 SHA-256: 2f0c0bc08319ec96d1a15bf3b036a011f7704bc3fe234e356ea14105e5e76e07
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous links and references to 'free Robux', a common lure for phishing and malware distribution. The presence of external URIs and the ML classifier's high confidence score indicate malicious intent. The document body and heuristics suggest the primary goal is to trick users into clicking links that likely lead to malware downloads or further phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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/free-robux-codes-game-hack
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/free-robux-quiz-roblox_GM431946152.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/www-robuxmaniac-free-robux_GM431946152.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/cmd-robux-hack-real-robux_GM431946152.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/how-to-delete-admin-pads-without-hacking-on-roblox_GM431946152.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/how-do-i-hack-someones-roblox-account_GM431946152.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/free-robux-for-obby_GM431946152.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/script-hack-roblox-phantom-forces-2021_GM431946152.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/create-an-audio-for-free-roblox_GM431946152.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-surveys_GM431946152.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/free-robux_GM431946152.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/roblox-cheat-table-2021_GM431946152.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021-no-human-verification-pc_GM431946152.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/minecraft-bedrock-hacks_GM479516143.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/tiktok-likes-free_GM835599320.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/free-pet-code-bubble-gum-simulator-roblox_GM431946152.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/give-me-free-robux-now_GM431946152.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/roblox-hack-no-human-verification-2021-iphone_GM431946152.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/proto-hack-roblox_GM431946152.pdf
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/how-to-get-20-body-on-roblox-for-free_GM431946152.pdf
    • https://www.belaja
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e6a.bin
7405adac84b932af89739b49c097d3b9c2b3b774a22ecce94e178d5db8964756		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E6A 22456 bytes
font_01_sfnt_off0000609f.bin
0b210ae1d2f25d9b8ac974921f9fa88679103a832855b836aa7747c7a59cf8bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x609F 18888 bytes

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