Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f6d9eebecc5eb53…

MALICIOUS

PDF

36.0 KB Created: 2021-07-02 01:39:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 03e2190bc52f56504a298e290231d142 SHA-1: e80ebb3c73dce05279d1851db30ed25e31ce47c9 SHA-256: 0f6d9eebecc5eb5331153d4adec385dc7b2485eb57b9abf2ddb8fa5e303b3dcc
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 exploits and cheats. The primary URL, http://netcdn.co/app/431946152/free-robux-without-doing-anything-game-hack, suggests a download lure for potentially malicious software. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood 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.co/app/431946152/free-robux-without-doing-anything-game-hack
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/how-to-make-free-audio-in-roblox_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/how-to-hack-your-roblox-password_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/free-swat-roblox-jailbreak-pastebin_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-from-a-hat_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-subscriber-key_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-robux-on-pc_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/give-me-some-free-robux_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/free-bc-in-roblox_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/how-to-hack-lumber-tycoon-2-roblox_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/roblox-free-robux-generator_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/hack-roblox-tener-nepe_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/free-robux-codes-2021-not-used_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/minecraft-bedrock-hacks_GM479516143.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/minecraft-font-free_GM479516143.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/free-robux_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021-easy_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/free-obc-roblox-accounts-2021_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/free-roblox-birthday-card-printable_GM431946152.pdf
    • https://learning.mtsn3kotabekasi.sch.id/__statics/gudangsoal/files/free-roblox-accessories-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003225.bin
56f544956744f8365d3e966bf6511d2bdc171d8462c67f97b210b0e09de100c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3225 22948 bytes
font_01_sfnt_off000065d3.bin
175c8a58e8e169f12273aafb2eda495858213246dee116a0d68e3e1da0577e93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65D3 19652 bytes

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