Malicious PDF — malware analysis report

Static analysis result for SHA-256 790f4bd28334f97a…

MALICIOUS

PDF

33.6 KB Created: 2021-07-05 16:50:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7325c5f80eadf32d2427d68c70383a4c SHA-1: e56df3975f8e5cb94bfdc25167fbc5c6cfe54fd4 SHA-256: 790f4bd28334f97a00418632c5c524f965b0452391fd38110f4a948f0d094b47
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains numerous embedded URLs and a visual call-to-action, strongly suggesting a phishing or malware distribution attempt. The document body and extracted URLs promote 'free coins and spins' and 'free Robux', indicating a lure for game-related cheats or hacks. 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 http://netcdn.tw/app/406889139/free-coins-and-spins-for-coin-master-game-hack
    • http://118.98.227.172/opac/repository/roblox-dll-hacks-2021_GM431946152.pdf
    • http://118.98.227.172/opac/repository/free-robux-no-email_GM431946152.pdf
    • http://118.98.227.172/opac/repository/free-account-roblox-2021-obc_GM431946152.pdf
    • http://118.98.227.172/opac/repository/real-way-to-get-free-robux-2021_GM431946152.pdf
    • http://118.98.227.172/opac/repository/free-robux-without-verification-2021_GM431946152.pdf
    • http://118.98.227.172/opac/repository/free-unlimited-robux-codes_GM431946152.pdf
    • http://118.98.227.172/opac/repository/roblox-2all-site-hack_GM431946152.pdf
    • http://118.98.227.172/opac/repository/coin-master-free-coins-and-spins-2021_GM406889139.pdf
    • http://118.98.227.172/opac/repository/coin-master-golden-card-hack_GM406889139.pdf
    • http://118.98.227.172/opac/repository/free-spins-coin-master-2021_GM406889139.pdf
    • http://118.98.227.172/opac/repository/coin-master-free-spins-2021-generator_GM406889139.pdf
    • http://118.98.227.172/opac/repository/www-coin-master-hack-com_GM406889139.pdf
    • http://118.98.227.172/opac/repository/hack-peoples-accounts-roblox_GM431946152.pdf
    • http://118.98.227.172/opac/repository/download-roblox-free-pc-windows-7_GM431946152.pdf
    • http://118.98.227.172/opac/repository/how-to-hack-weight-lifting-simulator-roblox_GM431946152.pdf
    • http://118.98.227.172/opac/repository/1-1-1-1-roblox-hacker_GM431946152.pdf
    • http://118.98.227.172/opac/repository/free-robux-2021_GM431946152.pdf
    • http://118.98.227.172/opac/repository/free-coins-on-coin-master-generator_GM406889139.pdf
    • http://118.98.227.172/opac/repository/hack-para-tener-robux-2021_GM431946152.pdf
    • http://118.98.227.172/opac/repository/coin-master-free-link-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003006.bin
e44ae53635e93a3bc797f1350ca974339af02088abd7a03386dc65620f0275f4
pdf-font-stream PDF embedded font (sfnt) at offset 0x3006 21784 bytes
font_01_sfnt_off0000604c.bin
c90f632020bcb1e728f62a43997badda2860e0d329262e99dedc1f8a12c39115
pdf-font-stream PDF embedded font (sfnt) at offset 0x604C 18348 bytes