Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3036c2efa6579ae…

MALICIOUS

PDF

41.7 KB Created: 2021-05-13 11:07:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: df9b0c58cd765974c1ec0fff11acc163 SHA-1: 90982fa1b480a84e0ab14e387b984ade153e0b39 SHA-256: f3036c2efa6579aeaf43410ac887cad0724b240fd8b07b4a20e93df452f06bbd
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a visual call-to-action button, strongly suggesting a lure to download malicious content. The ML classifier also flagged this PDF with high confidence. The presence of external URIs and the nature of the linked content indicate a phishing or scam attempt to trick users into downloading potentially harmful files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/spin-and-coin-game-hack
    • https://ciudadata.ec/images/ckfinder/files/minecraft-xbox-360-free_GM479516143.pdf
    • https://ciudadata.ec/images/ckfinder/files/get-free-food-in-coin-master_GM406889139.pdf
    • https://ciudadata.ec/images/ckfinder/files/minecraft-bedrock-client_GM479516143.pdf
    • https://ciudadata.ec/images/ckfinder/files/free-robux-without-verification-or-survey_GM431946152.pdf
    • https://ciudadata.ec/images/ckfinder/files/free-downloads-for-coin-master-daily-rewards_GM406889139.pdf
    • https://ciudadata.ec/images/ckfinder/files/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdf
    • https://ciudadata.ec/images/ckfinder/files/minecraft-fly-hack_GM479516143.pdf
    • https://ciudadata.ec/images/ckfinder/files/free-robux-obby-2021_GM431946152.pdf
    • https://ciudadata.ec/images/ckfinder/files/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • https://ciudadata.ec/images/ckfinder/files/free-robux-no-verification-required_GM431946152.pdf
    • https://ciudadata.ec/images/ckfinder/files/roblox-script-hack_GM431946152.pdf
    • https://ciudadata.ec/images/ckfinder/files/how-to-get-free-cards-in-coin-master_GM406889139.pdf
    • https://ciudadata.ec/images/ckfinder/files/coin-master-rewards-free-spins_GM406889139.pdf
    • https://ciudadata.ec/images/ckfinder/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdf
    • https://ciudadata.ec/images/ckfinder/files/coin-master-hack-tool-v1-9-pc_GM406889139.pdf
    • https://ciudadata.ec/images/ckfinder/files/roblox-svg-free_GM431946152.pdf
    • https://ciudadata.ec/images/ckfinder/files/minecraft-windows-10-hacks_GM479516143.pdf
    • https://ciudadata.ec/images/ckfinder/files/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdf
    • https://ciudadata.ec/images/ckfinder/files/free-400-spins-coins-master_GM406889139.pdf
    • https://ciudadata.ec/images/ckfinder/files/coin-master-hack-cydia_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004988.bin
2f7673655388cfaaed9a7c0f4b2c2cd3d716d7d9e696a2ca9a9e7f6fa21cd6b0
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4988 24780 bytes
font_01_sfnt_off000082aa.bin
1aa6e9a1125ffd8bd76459eac5be06ac3adbb2b38f3f38867c691e3d452af4d4
pdf-font-stream PDF embedded font (sfnt) at offset 0x82AA 17564 bytes