Malicious PDF — malware analysis report

Static analysis result for SHA-256 836e86899e4981f7…

MALICIOUS

PDF

42.6 KB Created: 2021-05-15 06:51:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 302ec48b95007743b21caf556e8b9767 SHA-1: de66e019093b7f104ec959e97f0f7d55f593e317 SHA-256: 836e86899e4981f77d7835ca34e2da30e610dca64c2a873ce9244eff9675376e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The document uses social engineering tactics, specifically a 'ClickFix' lure, to trick the user into executing a command or visiting a URL. The embedded URL and document body content point to a lure for free in-game items, likely leading to a malware download. No scripts were extracted, but the PDF structure and heuristics indicate a malicious intent to redirect the user to external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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/479516143/how-to-get-minecraft-pe-for-free-game-hack
    • http://www.sapaengineering.kz/images/minecraft-clipart-free_GM479516143.pdf
    • http://www.sapaengineering.kz/images/coin-master-rewards-2021_GM406889139.pdf
    • http://www.sapaengineering.kz/images/easy-robux-hack_GM431946152.pdf
    • http://www.sapaengineering.kz/images/free-robux-roblox-promo-codes_GM431946152.pdf
    • http://www.sapaengineering.kz/images/free-robux-no-human-verification-no-survey_GM431946152.pdf
    • http://www.sapaengineering.kz/images/robux-generator-no-verification-needed_GM431946152.pdf
    • http://www.sapaengineering.kz/images/free-robux-codes-no-human-verification_GM431946152.pdf
    • http://www.sapaengineering.kz/images/wurst-commands_GM479516143.pdf
    • http://www.sapaengineering.kz/images/how-to-get-free-coins-in-coin-master_GM406889139.pdf
    • http://www.sapaengineering.kz/images/coin-master-free-spins-through-coin-pop_GM406889139.pdf
    • http://www.sapaengineering.kz/images/free-robux-with-no-survey_GM431946152.pdf
    • http://www.sapaengineering.kz/images/coin-master-link-daily-get-free-spins-amp_GM406889139.pdf
    • http://www.sapaengineering.kz/images/coin-master-hack-mod-apk-35-8_GM406889139.pdf
    • http://www.sapaengineering.kz/images/haktuts-coin-master-free-spin-link_GM406889139.pdf
    • http://www.sapaengineering.kz/images/game-give-free-robux_GM431946152.pdf
    • http://www.sapaengineering.kz/images/flame-gg-free-robux_GM431946152.pdf
    • http://www.sapaengineering.kz/images/80-free-spins-coin-master_GM406889139.pdf
    • http://www.sapaengineering.kz/images/how-to-hack-coin-master-android_GM406889139.pdf
    • http://www.sapaengineering.kz/images/minecraft-bedrock-free-with-java_GM479516143.pdf
    • http://www.sapaengineering.kz/images/how-to-play-roblox-for-free_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b5c.bin
f4f9bd42c6a27df3e65b8b1324c45ec993561b490c57bceede6a7578c7c27e81		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B5C 25264 bytes
font_01_sfnt_off000084f8.bin
3ed4cc32a3614fc42f77637b5226aac8e96d41a1bdab71d116d218547dfdfc35		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84F8 18028 bytes

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