Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d802291092f38ff…

MALICIOUS

PDF

34.2 KB Created: 2021-07-03 15:18:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 24f631b97406ae4f054630f55822dd3b SHA-1: 636837ef6abf67d2ffeb1170d91005e0a1f9a3bf SHA-256: 8d802291092f38ff5984d023b467397ee6137add3f5fd84f0fb35fa399d14eab
160 Risk Score

Malware Insights

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

This PDF document contains multiple links designed to lure users into clicking on what appear to be game hacks or free item generators. The primary link redirects to known malicious infrastructure, indicating a phishing or scam attempt. The document's structure and embedded URLs suggest it is part of a campaign to drive traffic to potentially harmful sites, likely for credential harvesting or malware distribution.

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/free-spins-coin-master-ios-links-game-hack In PDF document text
    • http://empresa-venta.hr/files/25-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-game-pack-coin-master_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-apk-hack-mod-download_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/someone-hacked-into-my-roblox-account_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/roblox-vehicle-simulator-how-to-get-the-free-volkswagen_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-to-get-robux-for-free-simple-steps_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/www-free-robux_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/roblox-epic-minigames-hack-2021_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/roblox-sun-drag-hack_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-free-spins-no-survey_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/roblox-hacks-mpgh_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-unlimited-spin-apk-free-download_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/robux-free-c_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/roblox-hair-for-free_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
font_00_sfnt_off00003039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3039 22524 bytes
SHA-256: adc9afc6dfe867b2af2dfeef8767d1fbfbc4004ec6fec6443dea833e93c168a2
font_01_sfnt_off000062aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AA 18344 bytes
SHA-256: 292a0f49599b9f022f0735a96e0b7dcf200e5fdac2ab575d8f2ca43e146419f3

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