Malicious PDF — malware analysis report

Static analysis result for SHA-256 f12a767604a69398…

MALICIOUS

PDF

45.4 KB Created: 2021-05-15 12:47:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 58735e974ac8e58e3417ace6e7b8a61a SHA-1: d1ddcdb8ea4739af0dfc2db8430c2f75b20f306a SHA-256: f12a767604a69398e9fdbb4651401ad65719fcfcb8db32669ce57d977df5e615
62 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a visual call-to-action button, strongly suggesting a phishing or scam attempt. The document body and extracted URLs indicate a lure for a 'Coin Master' hack, likely leading to a malware download. The ML classifier also flagged this PDF as malicious with high confidence.

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/coin-master-jackpot-madness-hack-game-hack
    • http://www.controverseinterapie.it/images/coin-master-free-coins-and-spins-hack_GM406889139.pdf
    • http://www.controverseinterapie.it/images/113-hacked-client_GM479516143.pdf
    • http://www.controverseinterapie.it/images/how-to-get-free-robux-on-roblox_GM431946152.pdf
    • http://www.controverseinterapie.it/images/unlimited-coin-master-free-spins_GM406889139.pdf
    • http://www.controverseinterapie.it/images/minecraft-apk-114-4_GM479516143.pdf
    • http://www.controverseinterapie.it/images/coinmaster-hack_GM406889139.pdf
    • http://www.controverseinterapie.it/images/robux-website_GM431946152.pdf
    • http://www.controverseinterapie.it/images/how-to-get-more-robux_GM431946152.pdf
    • http://www.controverseinterapie.it/images/coin-master-hack-ios-download-2021_GM406889139.pdf
    • http://www.controverseinterapie.it/images/easy-way-to-get-free-robux_GM431946152.pdf
    • http://www.controverseinterapie.it/images/can-you-get-minecraft-for-free_GM479516143.pdf
    • http://www.controverseinterapie.it/images/roblox-arsenal-hack_GM431946152.pdf
    • http://www.controverseinterapie.it/images/20-free-spins-coin-master_GM406889139.pdf
    • http://www.controverseinterapie.it/images/get-free-cards-for-coin-master_GM406889139.pdf
    • http://www.controverseinterapie.it/images/100-robux_GM431946152.pdf
    • http://www.controverseinterapie.it/images/free-roblox-glasses_GM431946152.pdf
    • http://www.controverseinterapie.it/images/roblox-hack-tool_GM431946152.pdf
    • http://www.controverseinterapie.it/images/my-roblox-avatar_GM431946152.pdf
    • http://www.controverseinterapie.it/images/coin-master-hack-online-generator-without-human-verification_GM406889139.pdf
    • http://www.controverseinterapie.it/images/how-to-get-free-robux-gift-cards_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a94.bin
f260ec9d2a630010a429a31d3d1b7445f4aecec9e85725c6887768b5011363ea
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A94 25976 bytes
font_01_sfnt_off00008562.bin
3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
pdf-font-stream PDF embedded font (sfnt) at offset 0x8562 2840 bytes
font_02_sfnt_off00008f14.bin
7e7ffe0925f069372f8aec15272312b752d771f30cadb28f8d6f8a4187954caf
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F14 18232 bytes