Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9e45108318d634b…

MALICIOUS

PDF

33.3 KB Created: 2021-07-04 12:48:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: fcc6bce6268b32c89b61fb80d6fcc9bc SHA-1: 727acd1be374a4921e9ecb0e4f9dc270233176df SHA-256: e9e45108318d634bd38aa4b2b25541c85c0a179e8c48639c1d61ae8967be1bab
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links, one of which, http://netcdn.tw/app/431946152/how-do-you-get-free-robux-2021-game-hack, is flagged as malicious and redirects to known malicious infrastructure. The document body and heuristics indicate a lure for game hacks and free currency, likely a phishing or scam attempt. No scripts were extracted, but the presence of malicious links suggests the intent is to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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 http://netcdn.tw/app/431946152/how-do-you-get-free-robux-2021-game-hack In PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/hack-coin-master-site-rssingcom_GM406889139.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/hackear-roblox-apk_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-supreme-roblox-model_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/tiktok-free-view-jio-phone_GM835599320.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/cheat-codes-for-ninja-assassin-roblox_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-robux-by-robuxian_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-scipt-loader-roblox_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/april-fools-day-hack-roblox_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/filedropper-roblox-hack_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/hack-para-poder-hackear-en-roblox-2021_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/how-to-earn-free-stars-on-coin-master_GM406889139.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-credit-card-for-robux_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-shirt-template-free_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/robux-hack-no-human-verification-no-download-no-survey_GM431946152.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002b45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B45 21740 bytes
SHA-256: e723d870f2e845c2793c1d1952bfe7346e6c6c0a6f44ac8ba3cced21a95b11ed
font_01_sfnt_off00005b19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B19 19716 bytes
SHA-256: 0d2f3942e55245e7a14fdb54ac7cb42d00cb555bb8e9738c839b3f9835dfd221

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