Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb7761df53738094…

MALICIOUS

PDF

34.4 KB Created: 2021-07-06 10:20:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: eaa3d81ec1f472373810842ad7553855 SHA-1: 665f8588a7e3c70af398bedfea3cc2778e51b425 SHA-256: eb7761df53738094f5e43633ebe832c33b22212f856fe24df96b6086ce1bdb09
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-gameplay-game-hack PDF link annotation
    • https://perpus.upp.ac.id/digilib/repository/minecraft-wurst-client_GM479516143.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/roblox-hack-2021-admin_GM431946152.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/free-robux-xbox-one_GM431946152.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/free-robux-control-center_GM431946152.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/free-robux-earn_GM431946152.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/free-printable-roblox-coloring-pages_GM431946152.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/robux-hack-me_GM431946152.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/best-free-roblox-executor_GM431946152.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/minecraft-free_GM479516143.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/backpacking-hack-roblox_GM431946152.pdfIn PDF document text
    • https://perpus.upp.ac.id/digilib/repository/free-roblox-gift-cards-live_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
stream_002_off00002f85.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F85 22992 bytes
SHA-256: 291daa7f3587084fee113dd21ab330e8467c0cfbe32241021c48293bf3e84178
font_01_sfnt_off0000631c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x631C 18524 bytes
SHA-256: 16b9cb38bcb2a142b34ef46ce62b1942e172e3ddddc78505f18b000df75c2c6a

Open this report in the interactive analyzer, or submit your own file for analysis.