Malicious PDF — malware analysis report

Static analysis result for SHA-256 71616a5c5e90dc8a…

MALICIOUS

PDF

34.8 KB Created: 2021-07-06 13:14:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 48c1773e591d8ec55aeb6a654f32faca SHA-1: 8dba64d9549fd8d3dbe772f0e7adf9e61c411e93 SHA-256: 71616a5c5e90dc8aaf8bc0d60c23731dd265106b452f7c2a09a77e8297db05a7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document employs a lure of game hacks and cheats to entice users to click on embedded links. The primary link, http://netcdn.tw/app/479516143/minecraft-hax-download-no-virus-game-hack, and numerous others hosted on mtsn-baranti.com, likely lead to malicious content or further download stages. The ML classifier strongly indicated maliciousness, supporting the observed redirection behavior.

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/minecraft-hax-download-no-virus-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-hack-download_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-rixty-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/1x1x1x1-in-april-fools-roblox-hacking_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-prison-life-v202-hack-download_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/youtube-videos-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-clone-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/did-roblox-got-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/robux-sign_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-giveaway-every-hour_GM431946152.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/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-download-roblox-cheats-hack-tool-v2-3_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/mosttechs-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/all-roblox-games-you-can-hack-with-proxox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/javascript-robux-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-groups-that-give-free-robux-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
font_00_sfnt_off000031e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31E8 22248 bytes
SHA-256: 7118066ceeeab3ed044b7af30c181c845fad4db06b7335c51871e02f666327ef
font_01_sfnt_off000062f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F1 19064 bytes
SHA-256: c9301b664c7820a51099b6c338e49536d8b278d829e68d6805cbbf4ac53615c2

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