Malicious PDF — malware analysis report

Static analysis result for SHA-256 bae45dd2910d8af8…

MALICIOUS

PDF

36.1 KB Created: 2021-05-22 14:50:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7be697d6e5c88411bfff42c8d3c1d5e8 SHA-1: f3b5fed7cbfde4646e1148a277ba79098d2fac4d SHA-256: bae45dd2910d8af8ac7f025f60a51253708b2723aefd906e3181422cfc5d691b
82 Risk Score

Malware Insights

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

The PDF document contains embedded URLs and social engineering lures, including a 'Click here to download' phrase and instructions to press Win+R or paste a command, consistent with ClickFix attacks. The ML classifier also flagged the PDF as malicious. The document's content and embedded links suggest an attempt to trick the user into downloading a malicious file, likely a game hack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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-free-ios-game-hack
    • https://bisnisrakminimarket.com/ckfinder/userfiles/files/op-rewards-free-robux_GM431946152.pdf
    • https://bisnisrakminimarket.com/ckfinder/userfiles/files/real-free-spins-for-coin-master_GM406889139.pdf
    • https://bisnisrakminimarket.com/ckfinder/userfiles/files/free-spins-coin-master-blogspot_GM406889139.pdf
    • https://bisnisrakminimarket.com/ckfinder/userfiles/files/minecraft-cheats-pc-2021_GM479516143.pdf
    • https://bisnisrakminimarket.com/ckfinder/userfiles/files/roblox-phantom-forces-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000033e7.bin
b8b1e12c758f8616a6ed2d47b1229d072cc9ce48bf6d0c2534840b2d6da452f3		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33E7 24972 bytes
font_01_sfnt_off00006d7e.bin
54d91aee1a0896e30cfb652b9b9fc91e7951cfaa65da7a48657c461bc2dd637d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D7E 17712 bytes

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