Malicious PDF — malware analysis report

Static analysis result for SHA-256 373fbd8ce48619fd…

MALICIOUS

PDF

34.5 KB Created: 2021-06-18 21:27:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 43fe015b1ffe1408aacdaa4450f250aa SHA-1: eb678ebb04d0ffe86196da77db2a8b51d4a1f326 SHA-256: 373fbd8ce48619fdde7fa8065b4f7abdf5f7149acb2ec6ae31f22bc0231e933b
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains numerous embedded URLs and references to game hacks and cheats, suggesting a lure to download malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a URI pointing to a raw IP address further supports this assessment. The document body, though partially garbled, reinforces the theme of game exploits.

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 http://netcdn.co/app/431946152/roblox-redeem-card-hack-game-hack PDF link annotation
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-free-robux-hack_GM431946152.pdfPDF link annotation
    • http://103.68.2.77/__statics/gudangsoal/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-roblox-noclip-hacks_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-vip-roblox_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/pokemon-go-free-download-play-store_GM1094591345.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/cheat-engine-bypass-roblox-2021_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-roblox-clothes-girl_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/coin-master-free-link-facebook_GM406889139.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/a-bizzare-day-hack-script-roblox_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-font-free_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/300-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3011 22376 bytes
SHA-256: 48ac41a92a9b73dc2ff882d59c20d725be6771d313356cd1da9004b2183111dd
font_01_sfnt_off0000619c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x619C 19092 bytes
SHA-256: 80d3f910e97e202d29c9a9ae2a20d0d473940e2081182aa5c9c6919fa73dd70b

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