Malicious PDF — malware analysis report

Static analysis result for SHA-256 86418cf2e990e004…

MALICIOUS

PDF

45.3 KB Created: 2021-05-11 06:41:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 1483a6353ba2d1a32b6d53af5ea3f8ec SHA-1: 86e40201081ef3d2050b0a180f53ab507a7d899f SHA-256: 86418cf2e990e004375231812fdedf0a435e29bb010a5355ce5b5c2782c2093a
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs, with one prominently featured in the document body and heuristics, directing users to download free game hacks. The 'SE_CLICKFIX' heuristic indicates the document likely employs social engineering tactics to trick users into executing commands or visiting malicious links, bypassing standard security measures. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9551

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-chromebook-free-game-hack
    • https://perpustakaan.itda.ac.id/repository/robux-hack-tools_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/robux-generator_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spins-promo-code_GM406889139.pdf
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spins-through-coin-pop_GM406889139.pdf
    • https://perpustakaan.itda.ac.id/repository/games-that-give-free-robux_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdf
    • https://perpustakaan.itda.ac.id/repository/roblox-earn_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/free-robux-obby-2021_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/free-coins-coin-master-blog_GM406889139.pdf
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdf
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-robux-inspect_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/how-to-hack-roblox-games_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/100-free-spins-coin-master_GM406889139.pdf
    • https://perpustakaan.itda.ac.id/repository/xray-hack_GM479516143.pdf
    • https://perpustakaan.itda.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdf
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-link-spin_GM406889139.pdf
    • https://perpustakaan.itda.ac.id/repository/master-8-ball-pool-free-coins_GM406889139.pdf
    • https://perpustakaan.itda.ac.id/repository/free-outfits-roblox_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/roblox-robux-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b0f.bin
dfce01f246df2a8220c8ff08389868cf3731e06cc44b40b6181c67df8878f981		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B0F 25012 bytes
font_01_sfnt_off00008484.bin
96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8484 2820 bytes
font_02_sfnt_off00008e24.bin
2a1fd25b60091da4e89f293bc06fa32417487358dc39e20cf321c71e22d0bfdc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E24 18464 bytes

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