Malicious PDF — malware analysis report

Static analysis result for SHA-256 66ea4b33b5c15cb9…

MALICIOUS

PDF

43.3 KB Created: 2021-05-11 05:10:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 45ce67e0d258d0273b21892387d0c946 SHA-1: 5ce2b2f93e6db540b45cf66db8dbb7e632b5dee2 SHA-256: 66ea4b33b5c15cb9e24cfd06c54e9f5c8b09e50e19f5eca777aae2c24c4d61a9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free in-game currency and hacks to entice users. It contains multiple links to redirector infrastructure, including the primary malicious URL https://netcdn.xyz/app/406889139/free-spins-coin-master-haktuts-game-hack. The presence of these links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/406889139/free-spins-coin-master-haktuts-game-hack In PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/how-to-get-free-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/free-roblox-com_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/coin-master-offline-hack_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/buy-robux-free_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/roblox-cheat_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/free-spins-coin-master-2021-no-verification_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/free-group-roblox_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/google-how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/free-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/coin-master-collect-today-free-spin_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/coin-master-hack-lost-world-2021-com_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/free-minecraft-mods-for-xbox-one_GM479516143.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/coin-master-map_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/coin-master-daily-free-spin-app_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
stream_003_off00004ddf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DDF 25152 bytes
SHA-256: 2cabe8f96c62d65be804ea173bb754ec9cbf6ec1f1f68b123de9a6bce75266fc
font_01_sfnt_off0000877c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x877C 18196 bytes
SHA-256: fd8ee59660af8c9e4664936919e7b5321f93298eaf8e2ea805d6f2ae56b4a3b6

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