Malicious PDF — malware analysis report

Static analysis result for SHA-256 9665c13e79139241…

MALICIOUS

PDF

47.1 KB Created: 2021-06-03 09:30:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7a5dbe01c4a2296f32ca7e40aa3449af SHA-1: 6a75470afb9415f3d7473da6cc10edc503390839 SHA-256: 9665c13e7913924180dc77ca815ac3e7b7f5c28f4ed2cd65d7145b951cff044c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text that lure the user into downloading a file, likely a game hack or cheat, by offering free spins. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple download-related URLs supports a phishing or scam campaign. No scripts were extracted, but the document's structure and content suggest it's part of a social engineering effort to trick users into downloading potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

Heuristics 4

  • 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 https://netcdn.online/app/406889139/get-free-spins-on-coin-master-game-hack
    • http://library.fikes.upnvj.ac.id/repository/mcpe-master-coins-hack-download_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/robux-generator-no-human-verification-2021_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-redeem-code-for-coin-master_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-free-coins-and-spins-link_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-free-spin_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-robux-no-password_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/pokemon-go-free-zone_GM1094591345.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-robux-card-codes_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/rbx-roblox-robux_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-robux-roblox-promo-codes_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-roblox-printables_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/coinmaster-spin-ml_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/play-roblox-for-free-on-google_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-hack-without-verification-2021_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-robux-images_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/roblox-free-robux-com_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-t-shirt-roblox_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-spin-link-of-coin-master_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-free-spins-uk_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-hack-review_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005263.bin
a8da3fe0e20dd749cd756d52cd8682d090628b4b6051fbd29578c1a1d7b3951c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5263 25156 bytes
font_01_sfnt_off00008cb3.bin
30dce2b9c1950da345d7fed8f00c38887adfa2f2ddecc31775af2315e819ac37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB3 2840 bytes
font_02_sfnt_off00009665.bin
200850e3a78b1b50c9881a74b6d24eace04c65468f288c9b2f31b5952499e453		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9665 17884 bytes

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