Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bd50047e0e25665…

MALICIOUS

PDF

35.9 KB Created: 2021-07-04 08:33:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 279e39636284961ef407085c3c6ed1f9 SHA-1: 37439ba0c06d6abf0627332587f19e2f8922b9c3 SHA-256: 7bd50047e0e256657ca03d84fa152e1fd07b642699e0a4e78353f804604d44ce
62 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs, including one pointing to a raw IP address, that are designed to trick users into downloading game-related "hacks" or "free currency" files. The ML classifier strongly indicated maliciousness, and the presence of numerous links to potentially unwanted content suggests a lure for further malware delivery or phishing. No scripts were extracted, but the document's structure and embedded URIs are indicative of a malicious phishing attempt.

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.tw/app/406889139/coinmaster-links-game-hack
    • http://103.30.145.97/__statics/gudangsoal/files/free-coin-master-links_GM406889139.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/logiciel-hack-jailbreak-roblox_GM431946152.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/hacks-de-roblox-para-conseguir-robux_GM431946152.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/coin-master-hack-mod-apk-free-download_GM406889139.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/how-to-get-free-roebucks-on-roblox_GM431946152.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/what-is-exploiting-in-roblox_GM431946152.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/coin-master-free-gold_GM406889139.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/minecraft-free_GM479516143.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/roblox-com-free-robux_GM431946152.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/free-robux-groups-2021_GM431946152.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/2021-free-spins-coin-master_GM406889139.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/free-robux-kid-friendly_GM431946152.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/free-minifigure-codes-on-roblox_GM431946152.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/coin-master-hack-100-working_GM406889139.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/hacks-for-exq-tops-roblox_GM431946152.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/free-robux-giveaway-live_GM431946152.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/robux-hacks-2021_GM431946152.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/free-robux-generator-without-verification_GM431946152.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/free-robux-only-username_GM431946152.pdf
    • http://103.30.145.97/__statics/gudangsoal/files/oprewards-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000348e.bin
3f8dd42f9e79255aace66db635d3912a6186f74439ac2dc12217ecfe914a90f9
pdf-font-stream PDF embedded font (sfnt) at offset 0x348E 23520 bytes
font_01_sfnt_off000069b0.bin
cd2d4d9d379a8916250aac1c40b30da442fa59c9e5313384739df103290c40c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x69B0 18264 bytes