Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fc7a3756b7ac589…

MALICIOUS

PDF

45.3 KB Created: 2021-06-03 12:12:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f2631ee7fc242667076286a167018d3a SHA-1: bba66d7d01a28c617ed83f07aa0dc7e91a575210 SHA-256: 2fc7a3756b7ac589c6ca71301f5428ea4835ebc8ade7473b565911dfcf0b627d
82 Risk Score

Malware Insights

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

The document contains embedded URLs and a call-to-action phrase, consistent with a social engineering lure. The heuristic 'SE_CLICKFIX' indicates the document likely instructs the user to execute a command, which is a common tactic for bypassing security measures and delivering a payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/479516143/if-you-delete-minecraft-can-you-redownload-it-for-free-game-hack
    • http://perpustakaan.bkkbnkaltim.id/repository/free-robux-glitch_GM431946152.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/free-online-minecraft-server_GM479516143.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/daily-coin-master-free-spin-link_GM406889139.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/minecraft-pe-free-download-ios_GM479516143.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/wurst-112-2_GM479516143.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/http-bit-ly-coin-master-hack_GM406889139.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/free-robux-2021_GM431946152.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/roblox-rewards-robux_GM431946152.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/working-coin-master-hack-2021_GM406889139.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/coin-master-free-cards-link-2021_GM406889139.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/free-games-coin-master_GM406889139.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/rbx-gg-free-robux_GM431946152.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/moon-static-coin-master-generator-hacks-free_GM406889139.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/vehcle-simulator-hack-roblox_GM431946152.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/free-coins-app-for-coin-master_GM406889139.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/hack-my-game-xyz-coin-master_GM406889139.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/how-to-get-followers-on-tiktok-for-free_GM835599320.pdf
    • http://perpustakaan.bkkbnkaltim.id/repository/online-hacking-tricks-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005599.bin
aa51d42941cfd12cd8226490728070d790340b55c817d96bd18a42718174a386		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5599 24896 bytes
font_01_sfnt_off00008dd9.bin
18962371c76fb720bd28e976e47cbcb39c5d47198828412c269f5aef32a49cfd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DD9 18592 bytes

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