Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8a106e2da3ec87f…

MALICIOUS

PDF

35.3 KB Created: 2021-06-25 23:48:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 9ce91a717c427f164b4c323db9992e4e SHA-1: 47cbc42462195550ee2fb84c6ac10e0b46c28ba2 SHA-256: e8a106e2da3ec87f2deab0895dced02790b1a074fa41323ff425a73d74cdc50e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs, with a primary external URI pointing to a download location for 'roblox-printables-free-game-hack'. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may instruct users on how to handle password-protected content, a common tactic to bypass security filters. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of a malicious payload being delivered.

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/roblox-printables-free-game-hack PDF link annotation
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/pokemon-go-free-yellow-egg_GM1094591345.pdfIn PDF document text
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/minecraft-for-laptop-free_GM479516143.pdfIn PDF document text
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/the-roblox-game-and-online-free_GM431946152.pdfIn PDF document text
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/links-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/5-000-free-robux_GM431946152.pdfIn PDF document text
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/jailbreak-script_GM431946152.pdfIn PDF document text
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/how-to-hack-a-roblox-user-account-2021_GM431946152.pdfIn PDF document text
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/coin-master-hacked-apk-download-for-android_GM406889139.pdfIn PDF document text
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/roblox-jailbreak-hack-gameplay_GM431946152.pdfIn PDF document text
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/roblox-protosmasher-free-downlaod_GM431946152.pdfIn PDF document text
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/get-free-roblox_GM431946152.pdfIn PDF document text
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/roblox-v3rmillion-khol-admin-hack_GM431946152.pdfIn PDF document text
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/how-to-get-free-robux-on-roblox-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31DF 22856 bytes
SHA-256: dcab699cf47585d5fd3a5cebb9d1a9398a4dc8544288af509877764960e08ed0
font_01_sfnt_off00006520.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6520 19028 bytes
SHA-256: 5f2f594151e0b08153158ab3eb68c79847db9c0319a43ac7edef6c56c0cde280

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