Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0ed5822157477e9…

MALICIOUS

PDF

34.2 KB Created: 2021-06-29 10:50:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d10ab4239f3c198a705e3ce2551cebc8 SHA-1: 1afcbc7fb2012eb5deb5eae3bc302eee17f8b86f SHA-256: e0ed5822157477e9962502f0d02a1f79928c84ae6e7c84f96206e420f5589fa9
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs and a heuristic firing for an external URI, suggesting it is designed to redirect users to download malicious content. The document body and extracted URLs promote 'free hacks' and 'free currency' for games, indicating a lure for potentially unwanted or malicious software. No scripts were extracted, but the overall pattern suggests a downloader or exploit delivery mechanism.

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/animation-free-of-roblox-game-hack
    • https://hekl-software.de/images/free-robux-hackget-up-to-22-500-free-robux-today_GM431946152.pdf
    • https://hekl-software.de/images/tutohow-to-put-a-roblox-script-hack_GM431946152.pdf
    • https://hekl-software.de/images/free-roblox-gift-card-codes-2021-junr_GM431946152.pdf
    • https://hekl-software.de/images/does-pubg-uc-generator-work_GM1330123889.pdf
    • https://hekl-software.de/images/easy-robux-hack_GM431946152.pdf
    • https://hekl-software.de/images/free-college-textbooks-tiktok_GM835599320.pdf
    • https://hekl-software.de/images/robux-apk_GM431946152.pdf
    • https://hekl-software.de/images/haktuts-coin-master-free-daily-spins_GM406889139.pdf
    • https://hekl-software.de/images/how-to-get-free-roblox-dollars_GM431946152.pdf
    • https://hekl-software.de/images/noob-vs-pro-vs-hacker-vs-god-roblox-bloxburg_GM431946152.pdf
    • https://hekl-software.de/images/descargar-roblox-hackeado-para-android-2021_GM431946152.pdf
    • https://hekl-software.de/images/how-to-hack-a-account-roblox-v3rm_GM431946152.pdf
    • https://hekl-software.de/images/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • https://hekl-software.de/images/free-spins-coin-master-daily_GM406889139.pdf
    • https://hekl-software.de/images/how-to-get-free-pubg-uc-without-human-verification_GM1330123889.pdf
    • https://hekl-software.de/images/infinite-moneyz-roblox-injector-hack_GM431946152.pdf
    • https://hekl-software.de/images/how-to-get-free-robux-in-obby_GM431946152.pdf
    • https://hekl-software.de/images/free-robux-points-2021_GM431946152.pdf
    • https://hekl-software.de/images/minecraft-thumbnail-maker-free_GM479516143.pdf
    • https://hekl-software.de/images/how-to-get-free-robux-without-downloading-anything_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e0c.bin
45abc997b825d6af46fe781643a0ec530065014e418f235b364a0858e7732a59
pdf-font-stream PDF embedded font (sfnt) at offset 0x2E0C 22640 bytes
font_01_sfnt_off000060a4.bin
fa037487e5b368d26d8405c783360ab224709a721cb6339ac86d3d1150a8cc99
pdf-font-stream PDF embedded font (sfnt) at offset 0x60A4 19132 bytes