Malicious PDF — malware analysis report

Static analysis result for SHA-256 e077463cafdcf41b…

MALICIOUS

PDF

48.6 KB Created: 2021-06-08 14:38:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 3df65fe5dce446499346cfe0292b3cab SHA-1: 7e53c1d68b06b76706310839f88e71c111a1525b SHA-256: e077463cafdcf41b47d69343f4d532b5203115dc400ec955b57b32735be1e93b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free generators, directing users to malicious URLs. The ML classifier strongly indicated maliciousness, and the presence of numerous game-related lures suggests a phishing or scam attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.tw/app/431946152/inside-the-world-of-roblox-free-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info//repository/coin-master-hack-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-home_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-spins-link-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-hack-apk-no-survey_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-draw-2-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-3533-android-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-coins-on-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005141.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5141 27776 bytes
SHA-256: 9f9fde7205b0d1023437325e914876e598b7c6709a4778743f949eac28271cbd
font_01_sfnt_off0000909c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x909C 2812 bytes
SHA-256: fc92a80cefddbcc51cb4ecd7284aa73b746cbd66adcf1d96110f0323ec06b51f
font_02_sfnt_off00009a3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A3D 18604 bytes
SHA-256: 2ab82914221ad14a8a6d5705b7bee09020218deac3b895f14d41863b91ea229e

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