Malicious PDF — malware analysis report

Static analysis result for SHA-256 4072a82b50c3585a…

MALICIOUS

PDF

33.5 KB Created: 2021-07-07 18:12:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c54d60dcb4e2cd695148981e38a985ac SHA-1: bb9a28387b6f91f975dca0567f3f21c881865417 SHA-256: 4072a82b50c3585a42290ba4d2eb76f5f2ec4f20bde4ed20ed0838c0161736a8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of game hacks and virtual currency. The primary link, http://netcdn.tw/app/431946152/getrobux-info-game-hack, is designed to lead users to potentially harmful content. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/getrobux-info-game-hack In PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/roblox-hack-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/how-to-get-tiktok-famous-free_GM835599320.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/roblox-hack-for-wls3_GM431946152.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/free-roblox-chaser-codes_GM431946152.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/robux-com-free_GM431946152.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/coin-free-spin_GM406889139.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/dll-aimlock-hack-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/coin-master-hack-online_GM406889139.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/how-to-get-25-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/free-admin-pizza-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/pasos-para-hackear-coins-master_GM406889139.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/phlego-films-roblox-free-badges_GM431946152.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/coin-master-33-hack-version-download_GM406889139.pdfIn PDF document text
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/free-spin-link-for-coin-master_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
font_00_sfnt_off000030e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E4 21204 bytes
SHA-256: 4c79e6121b5508add2b4e44ed556e198a254428573f290721dfe0242c5ed3f2f
font_01_sfnt_off00005eff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EFF 18656 bytes
SHA-256: dc0a3c3c5acdce1f00df61ff0cd7230377149e24fc46f8acb7cd7add040d8ac7

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