Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea471d16b9e8d022…

MALICIOUS

PDF

35.0 KB Created: 2021-07-06 03:37:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 186f322b5376256b0130e2afa0628da0 SHA-1: f55f0aaea73850f8ab605e81d200da3bc1d09428 SHA-256: ea471d16b9e8d022bd1375aa7eb08bb39378af79a763750f75856e0a2569a53e
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external websites, many of which are SEO-optimized to appear as legitimate resources for game cheats and exploits, such as 'Roblox Executor Free Download'. The presence of a 'Password-protected archive handoff' heuristic suggests a common tactic to bypass security filters by instructing the user to download an archive and use a provided password. The document's structure and embedded links strongly indicate a phishing or scam attempt to trick users into downloading potentially malicious software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/431946152/roblox-executor-free-download-game-hack
    • http://library.fikes.upnvj.ac.id/repository/free-robux-pins-2021_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-hack-iosgods_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/huskybuckscom-free-robux_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/account-over-13-years-roblox-hack_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-free-spins-for-today_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/roblox-hack-without-human-verification-2021_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/hacking-roblox-accounts-cheat-engine_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-robux-no-verification-at-all_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/how-to-get-free-robux-in-2021_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/obby-gives-you-free-robux-no-password_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/rbxfree-com-free-robux_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/escape-mario-area-51-roblox-game-download-free_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/roblox-free-accessories_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-coins-and-spins-coin-master_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-hack-spin-link_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/roblox-cheats-for-robux-pc_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-free-daily-spins-link_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002e60.bin
2fde41e98bd9ae3e73356dd9e189e7271d8f323070d0cb497735439049f2e521		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E60 23428 bytes
font_01_sfnt_off00006277.bin
9d3cbe7a27ce38e4a819f5eac30f7d41229af3286533e465f2c08cc409e60f9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6277 19400 bytes

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