Malicious PDF — malware analysis report

Static analysis result for SHA-256 89cbbbb028228858…

MALICIOUS

PDF

33.6 KB Created: 2021-06-25 12:40:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 04495253eeaf4fc932b20cc47b4fd765 SHA-1: d42209fff7d49c03a6e8c0da384c856fc1c52062 SHA-256: 89cbbbb028228858b996fe1cd409e1c8ff7bc1c9223f58cf34867e1bbe847c8e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action within its body text, explicitly promising free in-game currency and hacks for popular games like Roblox and Coin Master. The primary link, http://netcdn.co/app/431946152/how-to-get-1-million-robux-on-roblox-for-free-game-hack, is flagged as a lure for game hacks. This suggests the document's purpose is to trick users into visiting a potentially malicious site that could lead to malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/how-to-get-1-million-robux-on-roblox-for-free-game-hack PDF link annotation
    • http://pustaka.pn-calang.go.id/repository/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/hack-coin-master-game-apk_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/latest-free-spin-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/fast-run-hack-roblox-murder-mystery_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/how-to-get-free-skinss-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/tiktok-free-fans-video_GM835599320.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-spins-coin-master-app-iphone_GM406889139.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-legeal-robux_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/jak-zrobici-za-free-postaci-w-roblox_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/how-to-hack-roblox-no-downloads-2021_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/roblox-hack-all-games_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-get-free-robux-without-download-apps-or-survey_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_off00002bfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BFD 22272 bytes
SHA-256: ac511717d848a8d0f89c92cb72c66905f9d520c328356e66e3083a167f9bd595
font_01_sfnt_off00005d7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7A 19480 bytes
SHA-256: 83d8ff215786ee2dbe5b5a92a37d52d992b8e96a7a06954c2d7cb929059f02ca

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