Malicious PDF — malware analysis report

Static analysis result for SHA-256 e42a6b663e19dba6…

MALICIOUS

PDF

34.8 KB Created: 2021-06-25 15:23:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: e3af778bfea7841a1a24b4afa995eed0 SHA-1: 4e0537cffdade3ad1d580e2868633cc68fe9c416 SHA-256: e42a6b663e19dba6af068e8afa6229429e9e5fd5d309e77ad1dea0fc846d127e
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/hacks-de-roblox-para-tener-infinitos-robux-gratis-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info//repository/como-hackear-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/200-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-do-you-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-spin-coin-master-link-download_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-roblox-avatar_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/claimrobux-net_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/tiktok-free-roblox-accounts-2021_GM835599320.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-computer-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-free-robux-2021-no-wait_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-minecraft-account-list_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-to-earn-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/100-free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/abs-shirt-roblox-free_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/pubg-uc-buy-in-pakistan_GM1330123889.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-daily-rewards-link_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-hack-pc_GM406889139.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_off000030a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30A2 22236 bytes
SHA-256: 0fac6bdf5844a43cfa847ec3aa76c78a35d069470d5b4e7ca78c3ed849e62675
font_01_sfnt_off000061f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F5 19340 bytes
SHA-256: 31b8b0479c40cd81210e65de0a535f526230cac0425c6be524e12c792ed20a84

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