Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd3cce704c06fdc5…

MALICIOUS

PDF

49.8 KB Created: 2021-06-09 01:10:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 50544f8f59d6144e6747943d507e1e39 SHA-1: 9814225a8b36bf3cceae2da8871b77d702873d09 SHA-256: cd3cce704c06fdc5707496b24b9fc79cf6e5df481522c3697fa2e6dbb3f36cca
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple lures related to game hacks and free currency, directing users to external URLs. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' indicates a high likelihood of this document being used to redirect users to malicious sites for phishing or malware distribution. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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/redeem-your-free-robux-at-http-get-robux-eu5-net-game-hack PDF link annotation
    • https://reggieslockandkey.com/images/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/freer-pro-tiktok_GM835599320.pdfIn PDF document text
    • http://reggieslockandkey.com/images/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/minecraft-free-version_GM479516143.pdfIn PDF document text
    • https://reggieslockandkey.com/images/tiktok-free-folowers-jio-phone-install-tamil_GM835599320.pdfIn PDF document text
    • http://reggieslockandkey.com/images/roblox-robux-generator-tool_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/how-to-use-cheats-on-roblox-deathrun_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-get-unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/coin-master-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-card-hack-apk_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/pubg-uc-whatsapp-group_GM1330123889.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_off00005466.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5466 26516 bytes
SHA-256: 17827c25cd1b80270b87dea3e886993210a868be664f6f372725dc76ca26b655
font_01_sfnt_off00009100.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9100 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_02_sfnt_off00009da8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DA8 19024 bytes
SHA-256: c69f81a9aecb0f64ca13506db8f6bca6e1d8a19a8e067bc3f56ebe979c186684