Malicious PDF — malware analysis report

Static analysis result for SHA-256 71ddc502b1624da2…

MALICIOUS

PDF

34.2 KB Created: 2021-06-19 09:26:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f5c455c3ca41b5770508d473b0b54557 SHA-1: 102e2383386acd8bfe825a91c2dd7782081d4fb5 SHA-256: 71ddc502b1624da255ae965055afb1c6772a0fc51cd6cd50df29741af944ecb0
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.co/app/431946152/fabulousv2-roblox-hack-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/hack-robux-july-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-cheats-pc-2021_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-hack-co_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/conor3d-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-tower-of-hell-cheat_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-game-free-spin_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-coins-in-assassin-roblox-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-gang-rape_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-health-cheat-engine_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/mcpe-download_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/como-ser-hacker-en-roblox-sencillamente_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/robux-hack-no-verification_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_off00002e09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E09 22588 bytes
SHA-256: 9d0a0cec1a67dec3899f56832ed9475c251f94b5e1ec9ac2c95f76838b26a9a5
font_01_sfnt_off00006007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6007 19200 bytes
SHA-256: 72474a3153912bd2aaa63cb65898a7d1668abc5f1106450c255032110b7e546b