Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d0fd132b8f802bc…

MALICIOUS

PDF

34.7 KB Created: 2021-07-09 03:22:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 063fe580cd4a462d9d132d523e695574 SHA-1: 53154d09012f6777918bfc7426f3a8a018e25953 SHA-256: 8d0fd132b8f802bc79677bca8401281d5168cab99227f0ef230a9551fdf7865f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising 'game hacks' and 'free generators'. The primary lure URL is http://netcdn.tw/app/406889139/hackear-coin-master-sin-verificacion-game-hack, which is flagged as a known malicious redirector. The document body text and embedded URLs reinforce this lure by mentioning game-related terms and linking to similar content, suggesting a social engineering tactic to drive traffic to malicious sites.

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/406889139/hackear-coin-master-sin-verificacion-game-hack In PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/free-robux-com_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/op-rewards-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/roblox-cheat-codes-for-rocitizens_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/likes-for-tiktok-free_GM835599320.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/hacking-roblox-with-code_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/roblox-free-exploits_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/free-disney-plus-accounts-tiktok_GM835599320.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/cheat-engine-for-roblox-apocalypse-rising_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/ios-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/coinmasterfreespinlink_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/coin-master-tricks-and-hacks_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_off000032c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32C2 22632 bytes
SHA-256: 0a9669c501ceaaf1a18a9b44082ecc1faf19c47294cfe5fb7c126847fbede188
font_01_sfnt_off00006552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6552 18140 bytes
SHA-256: 8725758669e843fa1a0d8f2b6ab2819d9373ecf6755463d2002cda75c39f467b

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