Malicious PDF — malware analysis report

Static analysis result for SHA-256 eacf70ec327a84c9…

MALICIOUS

PDF

33.3 KB Created: 2021-06-17 18:58:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1fba246f0ac104cd1bd79dbd8ebd3a8a SHA-1: 801e62da3e866af57be3047bdf36c4baeb83d714 SHA-256: eacf70ec327a84c9a0e722c1effbeedcd91a86a6cc1d29efe4505c434b2509f2
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to known malicious redirectors and lures users with promises of free game currency or hacks. The primary URL, http://netcdn.co/app/431946152/code-pour-free-robux-game-hack, is identified as a malicious redirector. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting potentially harmful sites, likely for further exploitation or credential harvesting.

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.co/app/431946152/code-pour-free-robux-game-hack In PDF document text
    • http://empresa-venta.hr/files/how-to-get-free-robux-ios-and-pc-october_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/_GM479516143.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-gold-cards-free-2021_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-to-change-your-username-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-pet-treats-coin-master_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-roblox-accounts-with-obc-lifetime-2021_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/roblox-account-hacken_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/uprobuxcom-free-robux_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://empresa-venta.hr/files/roblox-free-item-codes_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-minecraft-realm-codes_GM479516143.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_off00002d34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D34 21952 bytes
SHA-256: a5da1e0c6311c89ba8cb5281e01b38579b87e087a1edd011c1e93f927f661862
font_01_sfnt_off00005db5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB5 18856 bytes
SHA-256: 31a1de3718eb656ead422687ea847a6470568f37a426c6888883c5d86107d6a3

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