Malicious PDF — malware analysis report

Static analysis result for SHA-256 e989adae0cac6611…

MALICIOUS

PDF

34.3 KB Created: 2021-07-02 05:41:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2a57e049dc854c5d35ca5cf43046ba5c SHA-1: c9691db92294ef4316581d7516a026f2eb03a72d SHA-256: e989adae0cac661109aa7cc8509cf3e0417e6b18e50d038baf4b9582a9f73893
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous links to external resources, many of which are SEO-optimized PDF files related to game cheats and hacks. The ML classifier and PDF link farm heuristics strongly indicate malicious intent, likely to direct users to download malware or engage in phishing. The document body and extracted URLs suggest a lure focused on obtaining in-game currency or cheats for games like Roblox and Coin Master.

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/fiddler-hack-roblox-game-hack
    • https://library.institutpendidikan.ac.id/repository/roblox-login-hack_GM431946152.pdf
    • https://library.institutpendidikan.ac.id/repository/free-robux-no-human-verification-2021_GM431946152.pdf
    • https://library.institutpendidikan.ac.id/repository/free-promo-codes-for-robux_GM431946152.pdf
    • https://library.institutpendidikan.ac.id/repository/how-to-download-minecraft-for-free-on-windows_GM479516143.pdf
    • https://library.institutpendidikan.ac.id/repository/robux-game-com_GM431946152.pdf
    • https://library.institutpendidikan.ac.id/repository/how-to-get-free-accounts-with-robux_GM431946152.pdf
    • https://library.institutpendidikan.ac.id/repository/roblox-retail-tycoon-cheat-engine-download_GM431946152.pdf
    • https://library.institutpendidikan.ac.id/repository/how-to-hack-robux-into-your-account-2021_GM431946152.pdf
    • https://library.institutpendidikan.ac.id/repository/easy-robux-hack_GM431946152.pdf
    • https://library.institutpendidikan.ac.id/repository/free-spins-on-coin-master_GM406889139.pdf
    • https://library.institutpendidikan.ac.id/repository/como-ser-hacker-en-roblox-skywars_GM431946152.pdf
    • https://library.institutpendidikan.ac.id/repository/coin-master-coins-free_GM406889139.pdf
    • https://library.institutpendidikan.ac.id/repository/how-to-get-robux-without-hacking_GM431946152.pdf
    • https://library.institutpendidikan.ac.id/repository/win-free-robux_GM431946152.pdf
    • https://library.institutpendidikan.ac.id/repository/roblox-free-login_GM431946152.pdf
    • https://library.institutpendidikan.ac.id/repository/free-roblox-gift-card-codes_GM431946152.pdf
    • https://library.institutpendidikan.ac.id/repository/how-to-hack-coin-master-apple_GM406889139.pdf
    • https://library.institutpendidikan.ac.id/repository/be-hacks-to-use-for-no-clipping-in-roblox_GM431946152.pdf
    • https://library.institutpendidikan.ac.id/repository/free-robux-promo-codes-wiki_GM431946152.pdf
    • https://library.institutpendidikan.ac.id/repository/coin-master-viking-quest-hack_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002dcf.bin
5e77c09b56e39032c772a9857ea27bdea363ee530be0dfcc35487762580920cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DCF 22804 bytes
font_01_sfnt_off000060fd.bin
2b1ec6a9d181266352cb508bd6429a0a1c1e4ffab57e421a41c044c9d9f6a0ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60FD 19112 bytes

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