Malicious PDF — malware analysis report

Static analysis result for SHA-256 38bec4b5b01132b7…

MALICIOUS

PDF

43.5 KB Created: 2021-05-10 20:12:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 001de72eabe7c29b537eb9c7ac8d4d45 SHA-1: 85502e6689c8a5b521ac79a1077114d59a0332f5 SHA-256: 38bec4b5b01132b7ab93ecdb09053607650b286cfbdd0cef17bedaef5effb13e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to known malicious infrastructure, specifically targeting users interested in game hacks and free currency. The document body, though partially corrupted, suggests a lure related to 'How To Cheat In Roblox'. The presence of multiple malicious redirector links indicates a clear intent to lead users to potentially harmful content or further malware downloads.

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/431946152/how-to-cheat-in-roblox-game-hack In PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/roblox-script-executor-free_GM431946152.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/robux-free-co_GM431946152.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/robux-download_GM431946152.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/claim-free-robux_GM431946152.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/coin-master-hack-app-link_GM406889139.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/roblox-com-www_GM431946152.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/roblox-hack-site_GM431946152.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/free-roblox-intros_GM431946152.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/spins-coin-master_GM406889139.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/easy-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/free-robux-net_GM431946152.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-in-coin-master-game_GM406889139.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/rbx-roblox_GM431946152.pdfIn PDF document text
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/how-do-you-get-free-robux-without-paying_GM431946152.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_off00004a67.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A67 26072 bytes
SHA-256: 5a425ed7b0bfd057874cbd6c83276201a3208ee632e0a7de4cc1819379a016b6
font_01_sfnt_off00008701.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8701 18448 bytes
SHA-256: 65eb2ce946b42b9693923625c6007c764d2c4894e4322c6b46746fa0e9d37ece

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