Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5dcc3a444dd61ef…

MALICIOUS

PDF

35.3 KB Created: 2021-06-18 21:38:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e23423528d4ad10cf6a8af862a99c5dc SHA-1: dd35c259315489484e014dad42ea0f098daea48f SHA-256: e5dcc3a444dd61ef44a23e56784dacc1fadef551572885f6bb835b59447de7c2
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs disguised as links to free in-game items for popular games, which is a common lure for phishing or malware distribution. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, and the 'ML_NYX_PDF_MALICIOUS' flag strongly suggests malicious intent. The document body explicitly mentions 'How To Get Free Superhero Package On Roblox' and includes a URL pointing to a potential exploit or scam.

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/how-to-get-free-superhero-package-on-roblox-game-hack
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/how-to-get-free-snacks-in-coin-master_GM406889139.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-roblox-money_GM431946152.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-unlimited-coin-master-online-tool_GM406889139.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-app_GM406889139.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/roblox-group-free-robux_GM431946152.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/coin-master-card-hack-app_GM406889139.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/how-to-get-free-outfits-on-roblox_GM431946152.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-robux-now-2021_GM431946152.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-robux-now_GM431946152.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/coin-master-spin-link-hack_GM406889139.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/coin-master-free-attack-hack_GM406889139.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/google-moon-active_GM406889139.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/roblox-login-hack_GM431946152.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/coin-master-free-spins-daily-link-updated_GM406889139.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-robux-discord-servers_GM431946152.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/can-i-download-minecraft-for-free_GM479516143.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-robux-gift-card-codes_GM431946152.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/promo-code-free-robux_GM431946152.pdf
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-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_off00003214.bin
fc469e25490f4048bae04c212f1151ae0acaefe50e14191af3fdb03045d7ea4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3214 22108 bytes
font_01_sfnt_off00006321.bin
1ec99f28723e1420443f683c912508fa0a09095ae9795cd043eb4fde675aa70c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6321 19724 bytes

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