Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc76655d90eb93c…

MALICIOUS

PDF

33.9 KB Created: 2021-07-03 17:58:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 459255cbc4f2c7bcbd1c55d76e0cece3 SHA-1: f473c5dd12d3983242ee46abca43bbe9eae43b6e SHA-256: 1dc76655d90eb93ca16ab3ab80bb5d6162cda2de0f282a07298329f09ab11608
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a lure for a 'game hack' which redirects to malicious infrastructure. The document body and embedded URLs promote free game-related content, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to trick users into visiting a malicious site.

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/479516143/how-to-get-minecraft-for-free-on-your-phone-game-hack In PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/earn-robux-now_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/tiktok-free-prints_GM835599320.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/roblox-lumber-tycoon-2-money-hack-deutsch_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-roblox-dominus-admin_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/free-spins-coinmaster_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/minecraft-client_GM479516143.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-pet-food-for-coin-master_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-robux-with-out-rewards_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/hack-coin-master-ios-download_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_off0000304f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x304F 22008 bytes
SHA-256: 2fcba78846b76098476757fae9488f881cad3a2985139becfad7220f0ea9fa1c
font_01_sfnt_off000060a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A4 18784 bytes
SHA-256: ab0cf905dc5988e311e4929c945d58dbde5e393d70311552a9ff538161641e37

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