Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a8676e9d07417ab…

MALICIOUS

PDF

34.9 KB Created: 2021-07-04 04:27:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: af06088a27d692391ed73b75ac8bf9fd SHA-1: 90d589ef6aa258fc820331dbef9c18c6359cad5b SHA-256: 6a8676e9d07417abf62a6d099abf602035dfe4672544260ff5c1b26ab501bc38
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free spins, directing users to a suspicious URL. The ML classifier also flagged the PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to a potentially harmful site for further exploitation.

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/links-for-free-spins-for-coin-master-game-hack PDF link annotation
    • https://goodtools.tw/upload/files/coin-master-hack-version-2021-free-download_GM406889139.pdfIn PDF document text
    • https://goodtools.tw/upload/files/hack-para-coin-master-singapore_GM406889139.pdfIn PDF document text
    • https://goodtools.tw/upload/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/how-to-hack-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/watch-tiktok-for-free_GM835599320.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/hack-rogue-roblox_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/coin-master-free-spins-2021-haktuts_GM406889139.pdfIn PDF document text
    • https://goodtools.tw/upload/files/descargar-roblox-hackeado-adopt-me-para-pc_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/roblox-hack-robux-2021_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-roblox-accounts-with-obc-lifetime-2021_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-roblox-items-virus_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/dj-khaled-for-free-roblox_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/minecraft-free-online_GM479516143.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-tiktok-followers-without-survey_GM835599320.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-robux-quote_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/roblox-cheat-client-juillet-2021_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://goodtools.tw/upload/files/get-your-free-robux-today_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_off00003248.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3248 22768 bytes
SHA-256: 5bee9a58aea4d54ace354936908637a0a55b003d95f40d7d20d7f0ddcfaa102e
font_01_sfnt_off00006579.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6579 18344 bytes
SHA-256: 96481514b03c224811d2a75f7ccea8705871f2cf01891e6ae35602fbb1ea1232

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