Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dc1f8f7c7971470…

MALICIOUS

PDF

34.9 KB Created: 2021-06-18 06:33:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d1e69977f538dbbb78bbdb47c4365567 SHA-1: a807106b3ab4fd47f09320da06c01639cec2e07f SHA-256: 9dc1f8f7c79714708018f283ffb10b3ce98df9031f21424e7c58691603fbea6e
62 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a document body that promotes free downloads for popular games, aiming to trick users into downloading malicious files. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs further supports a malicious intent to deliver a payload. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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-download-free-windows-game-hack
    • http://katalog.iain-padangsidimpuan.ac.id/repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/rich-free-roblox-accounts_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-free-download_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/free-coin-master-spins_GM406889139.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/free-nerd-glasses-roblox_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/how-do-you-get-free-robux-on-roblox_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/minecraft-114-4-download-free_GM479516143.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-hack-tool-no-survey_GM406889139.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/free-minecraft-mods-for-ps4_GM479516143.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/hacks-for-island-royale-roblox_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/pokemon-go-free-walk-hack_GM1094591345.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-cheat-apk-free-download_GM406889139.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-redeem-code-free_GM406889139.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/is-minecraft-free-on-mac_GM479516143.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/games-that-give-you-free-robux_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/aim-bot-hack-on-roblox_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/free-robux-exe_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/how-to-hack-in-roblox-kozock_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-free-spin-daily-link_GM406889139.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-free-coins-and-spins-app_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ffe.bin
160bd11220b58c8f1bca4426f7f6bcc94f659e413979d0ff7594c7cd2290e015		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FFE 22508 bytes
font_01_sfnt_off0000620c.bin
f07687aeb3aed91ccfa17d6543075265c45ffd34e788e1efd297da71470bcf77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x620C 19472 bytes

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