Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcb67bb24e44d1b8…

MALICIOUS

PDF

34.4 KB Created: 2021-07-03 13:13:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 99fe82748b45a02e79a4fe44021c1ead SHA-1: b0b678f2a32fc15c68c02d86ff10c9a0f0b02363 SHA-256: dcb67bb24e44d1b85de567c929696dabd43a7131096f74410af97e62d895eac3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/479516143/how-to-make-your-own-minecraft-server-for-free-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/cheat-engine-no-longer-works-on-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/rblx-city-free-robux_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/free-spins-coin-master-2021-glitch_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-crash-checked-cheat-engine_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/descargar-hack-para-roblox-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-hack-to-get-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-1m-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/funny-roblox-hacker-names_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-kohls-admin-house-hack-script_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spain_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-robux-2021-july_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-ios-hack_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-spins-coin-master-october-13-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-roblox-scrach-ins_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/apk-hack-roblox-pc_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_off0000326e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x326E 22132 bytes
SHA-256: 9300b81ce15aedb566c016c05c5a1c574d724560478e38fbb16862537b3c366f
font_01_sfnt_off00006268.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6268 18748 bytes
SHA-256: 1b423bc8ae820a2c2eb73a9c501cf7699a28ccef7ea595eb2009fa638697dee6

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