Malicious PDF — malware analysis report

Static analysis result for SHA-256 7830abe593c625b8…

MALICIOUS

PDF

35.4 KB Created: 2021-07-03 17:30:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 091a97cd41c87fd68ce1755242350452 SHA-1: dd02cc36f7de7d521dbaecfd1083e38c64a57366 SHA-256: 7830abe593c625b8fe9c6b95275c55553805bbc7a2ed8a50245f4e180d816eb0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'Free Robux' and includes a direct URL to a suspicious domain, suggesting a phishing or malware distribution attempt. The presence of a 'password-protected archive' heuristic indicates that the user might be instructed to download an encrypted file, a common tactic to bypass security scanners. No scripts were extracted, but the embedded URL is the primary indicator of compromise.

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.tw/app/431946152/free-robux-just-enter-username-and-password-game-hack
    • https://library.uigm.ac.id/repository/free-coins-coin-master-blog_GM406889139.pdf
    • https://library.uigm.ac.id/repository/how-to-hack-roblox-accounts-2021-march_GM431946152.pdf
    • https://library.uigm.ac.id/repository/i-hacked-lolpuggys-roblox-acount-ha_GM431946152.pdf
    • https://library.uigm.ac.id/repository/free-robloxcom-login_GM431946152.pdf
    • https://library.uigm.ac.id/repository/coin-master-hack-apk-download-for-android_GM406889139.pdf
    • https://library.uigm.ac.id/repository/roblox-how-to-get-anything-for-free_GM431946152.pdf
    • https://library.uigm.ac.id/repository/new-hack-for-roblox-2021-novemeber_GM431946152.pdf
    • https://library.uigm.ac.id/repository/free-spins-and-coins-coin-master-2021-link_GM406889139.pdf
    • https://library.uigm.ac.id/repository/get-robux-paid-access-games-free_GM431946152.pdf
    • https://library.uigm.ac.id/repository/roblox-jailbreak-hack-client-download-free-2021_GM431946152.pdf
    • https://library.uigm.ac.id/repository/free-robux-without-doing-anything_GM431946152.pdf
    • https://library.uigm.ac.id/repository/how-to-cheat-on-bear-roblox_GM431946152.pdf
    • https://library.uigm.ac.id/repository/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdf
    • https://library.uigm.ac.id/repository/free-roblox-avatar-editor_GM431946152.pdf
    • https://library.uigm.ac.id/repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdf
    • https://library.uigm.ac.id/repository/all-the-free-clothes-in-roblox_GM431946152.pdf
    • https://library.uigm.ac.id/repository/coin-master-hack-spins-ios_GM406889139.pdf
    • https://library.uigm.ac.id/repository/free-links-coin-master_GM406889139.pdf
    • https://library.uigm.ac.id/repository/coin-master-free-spins-link-2021-april_GM406889139.pdf
    • https://library.uigm.ac.id/repository/roblox-code-carte-cadeau-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000317d.bin
109303ab9748f45ee0745a444114faf14c1402c595bc55debec08d4a47d6aaa4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x317D 22432 bytes
font_01_sfnt_off00006350.bin
ca0dd26b0bef75d2603dd700b03ccf5a3b1662ca9f727b40bb5c9350a3d5659a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6350 19740 bytes

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