Malicious PDF — malware analysis report

Static analysis result for SHA-256 c17e21b56b780aef…

MALICIOUS

PDF

35.5 KB Created: 2021-07-04 04:26:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 16bf8a62a7744eed3cf103a06e7533f8 SHA-1: 1b0e272ef7b969818251a61bcc5a00855a178c8e SHA-256: c17e21b56b780aef234fbd6216954c8cc9dc6c1627cd137f8b5511ecfaeef504
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-risk heuristic firing for a game hack lure, directing users to a suspicious URL. The document body explicitly mentions 'Get More Free Spins On Coin Master' and includes the malicious URL, indicating a phishing attempt to trick users into visiting a potentially harmful site. No scripts were extracted, but the embedded URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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/get-more-free-spins-on-coin-master-game-hack PDF link annotation
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/https-roblox-free-robux-webword-press-com_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/simplysarc_GM479516143.pdfIn PDF document text
    • https://elearning.min11blitar.sch.id/__statics/gudangsoal/files/hackear-el-roblox-med-city-noma_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/roblox-controversy_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/free-dell-laptop-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/free-group-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/roblox-points_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.min11blitar.sch.id/__statics/gudangsoal/files/robux-hack-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/how-to-hack-downald-lvl-dragon-ball-final-stand-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003457.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3457 23276 bytes
SHA-256: bdddedcd34bf18ebdc2c4ccdbf84a5548ee250b49a711e3bee0578da513fa633
font_01_sfnt_off000068ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68AE 18176 bytes
SHA-256: 4fd6d1aceac6cebacd30cf875f8d613d9461a91834818942a997ff440641441e

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