Malicious PDF — malware analysis report

Static analysis result for SHA-256 6468cc9c737ad3a7…

MALICIOUS

PDF

33.6 KB Created: 2021-07-06 12:36:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 82668026af6f345200b3cc460bf84887 SHA-1: ace761fdb473b93dcd8daa94a6075b3a8c11b8ee SHA-256: 6468cc9c737ad3a7ab020bc6c9836bbc492615b330059fbef42e3e2e5f61cc6b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as offers for free game currency or hacks. The document body and heuristics indicate a lure for 'Coin Master' game cheats, directing users to the URL http://netcdn.tw/app/406889139/get-free-spins-on-coin-master-game-hack. The presence of embedded URLs and the nature of the lure strongly suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/get-free-spins-on-coin-master-game-hack In PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-free-box_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-roblox-shirt-assets_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-combo-list-roblox_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-codes-that-haven-39_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-to-use-roblox-shirt_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-posed-golden-ffreddy-roblox_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-roblox-toy-codes_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-blogspot-free-spins_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/minecraft-free-apk-java-edition_GM479516143.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-generator-2021-download_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/cashrapps-free-roblox_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coins-master-hack_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-images_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002eb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB4 22552 bytes
SHA-256: 9241f0c6ff0f09b21b6b565dda9dafa857174f2b37fca92074844ef7a60cebad
font_01_sfnt_off000060e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60E8 18176 bytes
SHA-256: c16df4cb6866c2276686c5aaa4a0cb78e61d49506a44cfdb7663fe8f5aebf96b

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