Malicious PDF — malware analysis report

Static analysis result for SHA-256 150dd7ea4fa66db9…

MALICIOUS

PDF

48.1 KB Created: 2021-05-14 21:45:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 40b3d6588f0914f4a6d19c81b40f010f SHA-1: 48d43ea8f013059bae4cee6c6e1a31a1d7ab9735 SHA-256: 150dd7ea4fa66db98d4239f82cbdf54b592b2e7eb780dcae6db3ba8340db3b5e
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with one prominent URL pointing to a site offering 'free spin link for coin master game'. The presence of a visual download button lure and the ML classifier's high confidence score indicate malicious intent. Although no scripts were extracted, the document's content and embedded URLs strongly suggest a phishing or scam attempt to trick users into visiting potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8715

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-spin-link-for-coin-master-game-game-hack
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/how-to-create-group-in-coin-master-free-spins_GM406889139.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/coin-master-tiradas-gratis-link_GM406889139.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/free-robux-app_GM431946152.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/free-robux-reddit_GM431946152.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/free-robux-hacks-no-verification_GM431946152.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/minecraft-tools_GM479516143.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-robux_GM431946152.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/free-coin-spin-daily-link-coin-master_GM406889139.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/roblox-redeem-robux_GM431946152.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/microsoft-bing-free-robux_GM431946152.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/add-robux_GM431946152.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/robux-money_GM431946152.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/what-is-robux-in-roblox_GM431946152.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/free-robux-hack-generator_GM431946152.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/smart-lodhi-coin-master-hack_GM406889139.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-coins-for-free_GM479516143.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/is-there-a-way-to-get-free-robux_GM431946152.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/reddit-coin-master-hack_GM406889139.pdf
    • https://elearning.manurulkhoir.sch.id/__statics/gudangsoal/files/unlimited-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004837.bin
87dc0a8132e9ee84ee2d851abe6fe263fb1b8a73e6664e03932c07af94574311		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4837 24868 bytes
font_01_sfnt_off0000817f.bin
a17c2a746d49ac23b23e38a371e32fddecfcd91b10cf42ff6155bff6b8a07e91		 pdf-font-stream PDF embedded font (sfnt) at offset 0x817F 4028 bytes
font_02_sfnt_off00008f20.bin
6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F20 2788 bytes
font_03_sfnt_off00009910.bin
4ad106dc66915d7a7c54c506e35e2e74cb7406920644c521a55874c4c44ea7c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9910 18316 bytes

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