Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fbe6a2c97faa2a1…

MALICIOUS

PDF

45.7 KB Created: 2021-05-14 07:47:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e1f5ade575e2c7919c65a1aaeaaefc71 SHA-1: 07c214fca36dd895fd7721071cb7042e1ef2da7e SHA-256: 1fbe6a2c97faa2a1c2ed555b7e4df9da4692bebf99b0528cd13d0f83e581fbf6
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a visible call-to-action button, strongly suggesting a phishing or social engineering attempt. The document body and extracted URLs advertise game hacks, which is a common lure for users to download malware. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/406889139/coin-master-online-hack-no-survey-no-password-game-hack
    • http://103.19.59.42/__statics/gudangsoal/files/how-to-win-robux_GM431946152.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/how-to-get-free-robux-without-verifying_GM431946152.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/minecraft-com-free_GM479516143.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/roblox-hack-unlimited-robux_GM431946152.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/coin-master-hack-app-ios_GM406889139.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/free-robux-generator-no-human-verification-2021_GM431946152.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/no-scam-free-robux_GM431946152.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/how-to-make-free-robux_GM431946152.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/robux-hack-2021_GM431946152.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/roblox-bloxburg-hack_GM431946152.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/mcpe-master-unlimited-coins-free-download_GM406889139.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/coin-master-update-2021_GM406889139.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/coin-master-free-coins-and-spins-link_GM406889139.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/how-to-get-robux-on-roblox_GM431946152.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/hacks-minecraft_GM479516143.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/coin-master-hack-app-2021-download_GM406889139.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/free-robux-on-phone_GM431946152.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/free-robux-redeem-codes_GM431946152.pdf
    • http://103.19.59.42/__statics/gudangsoal/files/freespinandcoinblogspot-com-2021-11-coinmasterfreespins_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a94.bin
1875a43338fec59976f93504b62919eb894e39d032886618cb764504f4f12d87
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A94 34116 bytes
font_01_sfnt_off00008f01.bin
851b55b86fae67a7710f5a0f414e3dc181a06a9a41e12226fd5d3557d65ffbd6
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F01 18716 bytes