Malicious PDF — malware analysis report

Static analysis result for SHA-256 1088a1f452900c91…

MALICIOUS

PDF

36.1 KB Created: 2021-07-01 16:22:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9c766d66d1c02318d6c4bf48da390373 SHA-1: f0c75cd233c99c03d25dc000928c93a50b6a3826 SHA-256: 1088a1f452900c9149ecb40824a877da97d3ba4d3dc9ba33ccdc6d3e6ddca906
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains multiple embedded URLs and a prominent call-to-action, suggesting a lure for downloading a malicious payload. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates that the document may be instructing the user to decrypt a password-protected archive, a common tactic to evade security scanning. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/dragon-ball-rage-cheats-roblox-game-hack
    • http://library.poltekkes-palangkaraya.ac.id/repository/free-roblox-scripting-courses_GM431946152.pdf
    • http://library.poltekkes-palangkaraya.ac.id/repository/tiktok-free-view-300_GM835599320.pdf
    • http://library.poltekkes-palangkaraya.ac.id/repository/gamehunters-coin-master_GM406889139.pdf
    • http://library.poltekkes-palangkaraya.ac.id/repository/rich-account-password-free-robux-included_GM431946152.pdf
    • http://library.poltekkes-palangkaraya.ac.id/repository/roblox-password-hacker_GM431946152.pdf
    • http://library.poltekkes-palangkaraya.ac.id/repository/free-robux-generator-not-a-scam_GM431946152.pdf
    • http://library.poltekkes-palangkaraya.ac.id/repository/coin-master-hack-link_GM406889139.pdf
    • http://library.poltekkes-palangkaraya.ac.id//repository/pokemon-go-free-to-play_GM1094591345.pdf
    • http://library.poltekkes-palangkaraya.ac.id//repository/free-robux-that-actually-works-2021_GM431946152.pdf
    • http://library.poltekkes-palangkaraya.ac.id/repository/did-my-roblox-get-hacked_GM431946152.pdf
    • http://library.poltekkes-palangkaraya.ac.id/repository/free-robux-codes-no-builders-club_GM431946152.pdf
    • http://library.poltekkes-palangkaraya.ac.id/repository/how-to-hack-after-the-flash-roblox_GM431946152.pdf
    • http://library.poltekkes-palangkaraya.ac.id//repository/coin-master-codes_GM406889139.pdf
    • http://library.poltekkes-palangkaraya.ac.id/repository/red-valk-roblox-free_GM431946152.pdf
    • http://library.poltekkes-palangkaraya.ac.id//repository/can-you-make-a-minecraft-server-for-free_GM479516143.pdf
    • http://library.poltekkes-palangkaraya.ac.id/repository/how-do-you-get-free-robux-no-human-verification_GM431946152.pdf
    • http://library.poltekkes-palangkaraya.ac.id/repository/robux-place-rewards_GM431946152.pdf
    • http://library.poltekkes-palangkaraya.ac.id/repository/coinmaster-fan-page_GM406889139.pdf
    • http://library.poltekkes-palangkaraya.ac.id/repository/how-to-get-free-robux-on-roblox-in-2021_GM431946152.pdf
    • http://library.poltekkes-palangkaraya.ac.id/repository/roblox-hack-codes-for-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003563.bin
5f7cd93dc3672d298ca2c0ad8237971f724a313baa55048ad371ec2a0267ff00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3563 22704 bytes
font_01_sfnt_off0000685b.bin
78de1e3e5ae012a5300441b5d7a33ff52e42db54e26b6e7037c53ccc0507638a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x685B 18924 bytes

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