Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3d30798325b1890…

MALICIOUS

PDF

36.2 KB Created: 2021-07-05 23:44:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: cafe786926ce28a62948d9473fe03922 SHA-1: d40c8a1d355d18801a61b2f7e972507773b567a2 SHA-256: c3d30798325b18906ee92a4bb9ab4e957e8537cd588fa88f1754dad52c940dc6
62 Risk Score

Malware Insights

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

The document's content and embedded URLs strongly suggest a lure for downloading game cheats or hacks, which is a common social engineering tactic. The ML classifier also flagged this PDF as malicious with high confidence. The presence of multiple URLs pointing to similar content indicates a focused effort to direct users to external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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 http://netcdn.tw/app/406889139/coin-master-cheats-and-hacks-game-hack
    • http://perpustakaan.man2kotaserang.sch.id/repository/free-tiktok-followers-trial_GM835599320.pdf
    • http://perpustakaan.man2kotaserang.sch.id/repository/how-to-hack-to-go-through-walls-in-roblox_GM431946152.pdf
    • http://perpustakaan.man2kotaserang.sch.id/repository/pokemon-go-free-qr-code_GM1094591345.pdf
    • http://perpustakaan.man2kotaserang.sch.id/repository/coin-master-free-spins-link-2021-april_GM406889139.pdf
    • http://perpustakaan.man2kotaserang.sch.id/repository/roblox-online-free_GM431946152.pdf
    • http://perpustakaan.man2kotaserang.sch.id//repository/coin-master-admin-free-spins_GM406889139.pdf
    • http://perpustakaan.man2kotaserang.sch.id/repository/coin-master-hack-tool-pc_GM406889139.pdf
    • https://perpustakaan.man2kotaserang.sch.id/repository/minecraft-bedrock-hacks-windows-10_GM479516143.pdf
    • http://perpustakaan.man2kotaserang.sch.id/repository/roblox-strucid-battle-royale-aimbot-hack_GM431946152.pdf
    • http://perpustakaan.man2kotaserang.sch.id/repository/roblox-cheat-tables_GM431946152.pdf
    • https://perpustakaan.man2kotaserang.sch.id/repository/free-robux-no-survey-mac_GM431946152.pdf
    • http://perpustakaan.man2kotaserang.sch.id//repository/get-free-spins-on-coin-master_GM406889139.pdf
    • http://perpustakaan.man2kotaserang.sch.id/repository/ex7-roblox-hacks_GM431946152.pdf
    • http://perpustakaan.man2kotaserang.sch.id/repository/roblox-jailbreak-hack-download_GM431946152.pdf
    • https://perpustakaan.man2kotaserang.sch.id/repository/roblox-hack-client-2021_GM431946152.pdf
    • http://perpustakaan.man2kotaserang.sch.id/repository/get-free-robux-no-verification_GM431946152.pdf
    • http://perpustakaan.man2kotaserang.sch.id//repository/robux-prices_GM431946152.pdf
    • http://perpustakaan.man2kotaserang.sch.id/repository/coin-master-game-download-free_GM406889139.pdf
    • http://perpustakaan.man2kotaserang.sch.id//repository/free-modded-minecraft-server_GM479516143.pdf
    • http://perpustakaan.man2kotaserang.sch.id/repository/roboxy-com-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000344e.bin
72fd139ab02b054dd79e035d6ce4208a62c4faf047d14ae63428b4edc6e17808		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x344E 23900 bytes
font_01_sfnt_off00006ac4.bin
df5b74f0ef16f9f321c24baab86d168e4bf65afde7b485ed04fa755412025de8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC4 18344 bytes

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