Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a5b050972e01d42…

MALICIOUS

PDF

34.3 KB Created: 2021-07-05 01:14:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4c2efe020695ab616c6250d5352df1aa SHA-1: e456d3d7e93f8a9b65e22f5e4fed0422ac7d9783 SHA-256: 5a5b050972e01d42d34cceeaf82a26cf22b53817dceb05dc742b1077cf574375
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, with a primary focus on 'game hacks' and 'free generators'. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates a social engineering tactic to trick users into visiting potentially malicious sites. While no scripts were directly extracted, the nature of the lures and the embedded URLs suggest a phishing or scam attempt, likely leading to a second-stage download or 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/como-hackear-coin-master-iphone-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info//repository/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/cm-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/i-cant-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/in-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-studio-free-download_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-robux-com_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-do-you-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/earn-free-robux-online_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/circuit-breaker-free-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/wurst-18_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-daily-free-spins-blog_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/minecraft-complete-handbook_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/tiktok-free-advertising_GM835599320.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-hack-roblox-money-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-spins-link-2021_GM406889139.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
stream_002_off00002ff8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FF8 22744 bytes
SHA-256: c63bf77836ece1b771e2495ac9c18621a9c429e785fdd6ac2b5e65cf8c311061
font_01_sfnt_off000062a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A2 18608 bytes
SHA-256: 478645cc5be930e2e24d11a127e06d3afabdf2c17363e8bbb308d1e1ffe63ec8

Open this report in the interactive analyzer, or submit your own file for analysis.