Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4a444755546ca44…

MALICIOUS

PDF

34.8 KB Created: 2021-06-25 08:13:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 34de72ed8816e650edc929a4ca0e2ec4 SHA-1: 8fbe7bb4fbe1542bfd66afffb22cead775396024 SHA-256: b4a444755546ca44b418178ffd5b7805db7cff7f69c3dcb3aafa27a11bc387bf
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links and a lure related to game hacks and free in-game currency, specifically targeting popular games like Roblox and Coin Master. The ML classifier strongly indicated maliciousness, and the embedded URLs likely lead to phishing or malware distribution sites. No scripts were extracted from this sample, but the document's structure and content strongly suggest a social engineering attack to trick users into visiting malicious domains.

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.co/app/431946152/how-to-hack-roblox-and-get-robux-on-first-attempt-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-adventure-story-wraith-card-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-com_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/www-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/play-roblox-free-online_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-2021-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-hack-an-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-hack-into-someones-account-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/da-hood-roblox-hack-script_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-limiteds-roblox_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
font_00_sfnt_off00002f00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F00 22208 bytes
SHA-256: 7b865b80042fb8df7dfc3ffcbbd02d3ce5822d423a548587758670c830d342c4
font_01_sfnt_off00006066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6066 19960 bytes
SHA-256: 108e1c375a1b391a06fed52234c44d3d254777dbf4c1780f6c0ba86154421415

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