Malicious PDF — malware analysis report

Static analysis result for SHA-256 48788626f44e656a…

MALICIOUS

PDF

35.5 KB Created: 2021-06-27 18:40:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e096c2e068c646efb5ec997d758afbd8 SHA-1: dde4300ffc0f5cc36300fc0ead47b64c1aefd6ab SHA-256: 48788626f44e656ac995c02f7232c8f23a7bc1bd248cb5f4c550b0ffcd414a71
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded URLs and a link farm, strongly suggesting it is designed to redirect users to external sites for downloading game cheats or hacks. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the content indicate a phishing or malware distribution attempt.

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/amazing-raps-cheat-for-auto-rap-battles-roblox-game-hack
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/how-to-get-free-robux-hack-on-computer_GM431946152.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/f12-robux-hack_GM431946152.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/rbxoffers-com-free-robux_GM431946152.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/roblox-free-tony-stark-tshirt_GM431946152.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/how-to-minecraft-for-free_GM479516143.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/how-to-install-minecraft-for-free-on-ios_GM479516143.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/coin-master-redeem-code-free_GM406889139.pdf
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/roblox-health-hack-2021_GM431946152.pdf
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/free-robux-gft-cards_GM431946152.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/elemental-battlegrounds-roblox-diamond-hack_GM431946152.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/coin-master-tiradas-gratis-link_GM406889139.pdf
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/free-100-robux_GM431946152.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/coin-master-daily-free-spins-link-today-2021_GM406889139.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/free-coin-and-spin-in-coin-master_GM406889139.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/free-robux-sca_GM431946152.pdf
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/free-robux-generator-no-verification-2021_GM431946152.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/minecraft-free-reddit_GM479516143.pdf
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/heists-roblox-cheat_GM431946152.pdf
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/how-to-earn-free-robux-with-offertoro_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000337b.bin
16cd32ca38204a5a6cefc530c788e397bde264cc7e7e49186beaa5a96e07a696		 pdf-font-stream PDF embedded font (sfnt) at offset 0x337B 21976 bytes
font_01_sfnt_off00006430.bin
2a003bfe3fa33983dba3d5f8cd324202b9ed8a61626757137263fcd5657d84a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6430 19696 bytes

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