Malicious PDF — malware analysis report

Static analysis result for SHA-256 720e8d3e28be0b53…

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 22:09:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 408214969e19ba1dc27e6d028c98597d SHA-1: 6bcef32353832e4119312375ed43efb1d34e09c8 SHA-256: 720e8d3e28be0b533ff78c5c95f5199c249ba0f1884b73c3cd63042a57f4adad
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure related to game hacks and generators, directing users to a malicious URL. The ML classifier strongly indicates maliciousness, and the presence of multiple game-related lures suggests a social engineering tactic to drive traffic to potentially harmful sites. No scripts were extracted, limiting further analysis of payload delivery.

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-apk-july-29-game-hack PDF link annotation
    • http://pustaka.fti.unand.ac.id/repository/free-spin-link_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/how-to-get-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/roblox-cheat-engine-63-robux-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/inspect-element-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/coin-master-free-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-minecraft-bedrock-server_GM479516143.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/how-to-get-free-robux-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/nuevos-hacks-de-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-village-4_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/ios-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/create-roblox-faces-free_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-free-spins-today-39_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/roblox-mon-compte-il-fait-hacker_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/how-to-change-your-roblox-username-for-free-2021_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_off00002f4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4E 22980 bytes
SHA-256: ccf30157845762121b9d867d160fce72f2f05439884845bf030850aa263361ff
font_01_sfnt_off000062e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E0 19028 bytes
SHA-256: 3ad37a86976cb2f68fb9487c91401566e7b5c76794aeed29845587ca95c5dc1f

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