Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae1d3e2c936a41d4…

MALICIOUS

PDF

45.7 KB Created: 2021-05-14 18:30:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 41a3b4e66a46abfd2ae0301c18c256fb SHA-1: d841e8dfe57b7ddc5dfb1883b748858128de67b0 SHA-256: ae1d3e2c936a41d4caf58884d5177a6228d488bc2bcb53dddb51a5a889e5a6b8
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game cheats and free currency, directing users to download files from external URLs. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to deliver a payload. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a potential for JavaScript execution or a direct download of a second-stage malicious file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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 https://netcdn.xyz/app/406889139/free-coin-master-spins-2021-game-hack
    • http://apostolosandreaslemesou.com/images/roblox-rape-hack_GM431946152.pdf
    • http://apostolosandreaslemesou.com/images/coin-master-hack-apk-july-2021_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/coin-master-ad_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/minecraft-server-free-trial_GM479516143.pdf
    • http://apostolosandreaslemesou.com/images/how-to-get-free-robux-easy-hack_GM431946152.pdf
    • http://apostolosandreaslemesou.com/images/roblox-hack-app_GM431946152.pdf
    • http://apostolosandreaslemesou.com/images/robux-codes-generator-no-human-verification_GM431946152.pdf
    • http://apostolosandreaslemesou.com/images/robux-xyz_GM431946152.pdf
    • http://apostolosandreaslemesou.com/images/free-coin-master-app_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/blogger-coin-master-free-spins_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/buxblast-com-robux_GM431946152.pdf
    • http://apostolosandreaslemesou.com/images/actual-free-robux_GM431946152.pdf
    • http://apostolosandreaslemesou.com/images/best-free-minecraft-servers_GM479516143.pdf
    • http://apostolosandreaslemesou.com/images/how-to-get-free-robux-website_GM431946152.pdf
    • http://apostolosandreaslemesou.com/images/free-robux-live_GM431946152.pdf
    • http://apostolosandreaslemesou.com/images/free-coin-spin-daily-link-coin-master_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/coin-master-mod-apk-hack_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://apostolosandreaslemesou.com/images/100-free-spins-coin-master-2021_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ae1.bin
6f0991a8a2d364f422ceb07514452ca66fd912b3decf23f18d5c53802a696463		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AE1 25716 bytes
font_01_sfnt_off000084e7.bin
8c2546387700f45186c395d475006178ee984eabbc175bcf1ee6eb58ba8b57aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84E7 3204 bytes
font_02_sfnt_off00008feb.bin
cbf21fc5c11f74798808ab0cc71af5e4bf323ced5a050f8983f0748b8c809d88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FEB 18288 bytes

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