Malicious PDF — malware analysis report

Static analysis result for SHA-256 e810767f0567fda9…

MALICIOUS

PDF

49.4 KB Created: 2021-06-09 03:52:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: fd01cc03fecbfb8d9b7baebb94ea68ef SHA-1: c09dbc009b1c02c0edcd9930f0f680cae63abdad SHA-256: e810767f0567fda936a47c1ada3d878c9824132fb0fd8d9000d2527f55978f65
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/hack-desert-treasure-quest-roblox-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info//repository/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/give-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/robux-gainer_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/picture-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-spin-coin_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-tower-defense-hacked_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-minecraft-account-list_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-roblox-hair-boy_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-windows-10-code-free_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/is-free-robux-real_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/hack-coin-master-nyc_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-do-i-get-free-coins-in-coin-master_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000053a9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53A9 26160 bytes
SHA-256: def9a6b0afb736b71818fc2561a7b471aeacf3db4d19c0d2465f6e7c9b90821a
font_01_sfnt_off00008fb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FB2 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009cc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CC4 18752 bytes
SHA-256: b8d6c8c9a89dcf727b121b21fd8526152adeeb45236b5648c5d7459533193056

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