Malicious PDF — malware analysis report

Static analysis result for SHA-256 7210125e15cd8746…

MALICIOUS

PDF

48.7 KB Created: 2021-05-14 03:40:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 097ba1d523a4d41ba0ab1343e3cb2dea SHA-1: 2c4c3769beba0e82d074ab7889f66381af304243 SHA-256: 7210125e15cd87463e3c6b91d5b8b8f1bc7e4895893f3dcb233e71b702837e72
82 Risk Score

Malware Insights

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

The PDF document contains a lure for a free game download, directing users to a malicious URL. The 'ClickFix' heuristic indicates the document likely instructs users to manually execute a command or open a link, a common social engineering tactic to bypass security measures. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8642

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/minecraft-for-macbook-free-game-hack
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-twitter_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/roblox-mobile-hack_GM431946152.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/robux-com-free_GM431946152.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/coin-master-hacks-2021_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/how-many-levels-are-in-coin-master_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/free-coin-and-spin-for-coin-master_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/is-minecraft-java-edition-free_GM479516143.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/free-minecraft-realm-codes_GM479516143.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/mobihack-roblox-hack_GM431946152.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/how-do-you-earn-robux_GM431946152.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/8bp-hack-coin-master_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/best-free-minecraft-skins_GM479516143.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/robux-game-com_GM431946152.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-online-tool_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/coin-master-cheat-codes-free_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/minecraft-free-app_GM479516143.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-account-2021_GM431946152.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-apk-2021_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/coin-master-hack-1021_GM406889139.pdf
    • https://sigmaclient.info#2
    • https://flux.today#3
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004add.bin
e6ff19d4d37ce6347a15d6ab8e04d481a36c2daa57746dc02aad6ed7cea2840b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ADD 26588 bytes
font_01_sfnt_off000087df.bin
f1a29adcea636583330be8db4f6466410de551ac48576b9e1aa5c34e2d665a1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87DF 3020 bytes
font_02_sfnt_off00009234.bin
4555740682277f0055d57b15bd0ba953e5b51415ea3d21c93db391eace072d4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9234 2816 bytes
font_03_sfnt_off00009c45.bin
e35cfce22191ce4ea9e8e8a795a10ede178e5487c7a13e4e7778456c2803af03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C45 18040 bytes

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