Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae5b9899a43b40cd…

MALICIOUS

PDF

34.1 KB Created: 2021-07-04 21:04:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6ce28e9e345982dda85a0f0bacd254f7 SHA-1: a9978606287ab566b19a62ba5b1d9b0839788ed3 SHA-256: ae5b9899a43b40cd6a9631ad951f2e565ba7df0daba31db8f77ef6811ce3a69b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites that promise game hacks and free currency for popular games. The primary lure appears to be 'free money links' for Coin Master and 'free Robux' for Roblox. While no scripts were extracted, the embedded URLs and the nature of the lures strongly suggest a phishing or scam attempt designed to redirect users to potentially malicious sites.

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/free-money-links-coin-master-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-giving-away-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/cheat-code-sonic-new-map-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-escape-game-cheat_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/como-conseguir-robux-gratis-100-real-sin-hacks_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-world-free-download_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/cheat-enginge-how-to-make-roblox-not-crash_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/robux-roblox-hack-apk_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-hack-jailbreak-roblox-on-ipad_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/robux-hack-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-printables-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-no-vertification-no-survey-no-pasword_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-barbie-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-new-cards-hack_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-windows-7-inspect_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-how-to-get-free-robux-no-hack-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000030a1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30A1 22340 bytes
SHA-256: 12253bae373e3a65f8bceb82f3f8406dd6f1b1ea6a8dd79b660f18dec0212ef6
font_01_sfnt_off00006240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6240 18348 bytes
SHA-256: d1e3fa9b345845750c3361cd5ba2c4bb407e1fff22b4faa08696458df1a8669f

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