Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3699942949bbf23…

MALICIOUS

PDF

35.1 KB Created: 2021-07-06 07:31:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4713c689d1930e287e506420784e0b43 SHA-1: 1dd63278322b6a7cacc1e9722bf8ac9280d69f5a SHA-256: e3699942949bbf2304f54f27de9c5cf6cf5e6aeebe8470b3d608cf95a27390f2
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/406889139/coin-master-hack-online-game-hack PDF link annotation
    • http://perpus.polimarim.online/repository/roblox-free-colouring-pages_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-to-get-free-robux-on-roblox-ipad-mini_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-robux-generator-no-download-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-to-get-any-hat-in-roblox-no-hack_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-robux-from-group_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-roblox-toy-code-june-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-noot-noot-hack-roblox-id_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-free-robux-no-survey-no-password_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-to-play-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-aimbot-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-cool-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-how-to-get-free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-robux-in-game-type-your-password_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_off00003390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3390 23008 bytes
SHA-256: 12110457f09cb31624b93e10f5a503752ca74c3b04eab703e650371d32e383ab
font_01_sfnt_off0000673d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x673D 18080 bytes
SHA-256: cc443b3e5e9939834b16353350763c191a3601af963dfecf81ceca0ba0d95e52

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