Malicious PDF — malware analysis report

Static analysis result for SHA-256 beed8d5abab232ea…

MALICIOUS

PDF

45.6 KB Created: 2021-06-07 06:24:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 629cfdfdb260d94302d879496d78b052 SHA-1: dcf8af763e70a72e50e7537ea5cbd549fff22a3a SHA-256: beed8d5abab232eae894d2e8ca07999ac9b4ad43d500da83124775e1225f20a6
82 Risk Score

Malware Insights

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

The document exhibits characteristics of an advance-fee scam, using lures related to game cheats and hacks to entice users. It contains an embedded URI pointing to a suspicious URL, likely intended to lead the user to download a malicious payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.tw/app/431946152/treasure-hunt-simulator-roblox-cheat-game-hack
    • http://library.patria-artha.ac.id/repository/google-moon-active_GM406889139.pdf
    • http://library.patria-artha.ac.id/repository/roblox-free-robux-com_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/coin-master-links-for-free-spins-2021_GM406889139.pdf
    • http://library.patria-artha.ac.id/repository/free-robux-hack-2021_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/coin-master-free-spins-daily-link-updated_GM406889139.pdf
    • http://library.patria-artha.ac.id/repository/coin-master-free-coins-app_GM406889139.pdf
    • http://library.patria-artha.ac.id/repository/hack-roblox-hack-free_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/coin-master-hack-trick-2021_GM406889139.pdf
    • http://library.patria-artha.ac.id/repository/robux-giver_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/coin-master-free-daily-spins-today_GM406889139.pdf
    • http://library.patria-artha.ac.id/repository/free-robux-only-username-no-human-verification_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/free-robux-com-no-verification_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/collect-free-spins-for-coin-master_GM406889139.pdf
    • http://library.patria-artha.ac.id/repository/codes-how-to-get-free-robux_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/roblox-shirt-template-free_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/roblox-free-robux_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/free-gold-cards-coin-master_GM406889139.pdf
    • http://library.patria-artha.ac.id/repository/how-to-get-free-robux-gift-cards_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/how-to-hack-roblox-to-get-free-robux_GM431946152.pdf
    • http://library.patria-artha.ac.id/repository/easy-roblox-today_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005387.bin
b64026de2922f5c1b502e93d18905a2ea23d7d3a1a504b2140dc2715d839095f		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5387 25224 bytes
font_01_sfnt_off00008e63.bin
f02caa2a6d107d58435aeb2b25bebb57ebdbd53db1ad29d70a190a7d58561560		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E63 18804 bytes

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