Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0e8884e17581e70…

MALICIOUS

PDF

33.8 KB Created: 2021-07-08 11:49:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f64b3e35b060feec575d2026a4de84aa SHA-1: cf32249606dbcbcebb57bca5957ad0d13baccb03 SHA-256: c0e8884e17581e703a9ca2eabd3004cb4338d7d922158696767963bdba0924e5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting "free game hacks" and "free robux" lures. The primary redirector URL is http://netcdn.tw/app/479516143/minecraft-sign-up-free-game-hack. This indicates a phishing or scam attempt designed to trick users into visiting potentially harmful sites. No scripts were extracted, but the embedded URLs and the nature of the lures strongly suggest a social engineering attack.

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/minecraft-sign-up-free-game-hack In PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/get-free-robux-live_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/roblox-how-to-get-free-items-in-catalog-2021_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/roblox-hack-codes-2021_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/upgrade-to-roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/como-hackear-el-pin-de-una-cuenta-de-roblox_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/denis-free-robux-site_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/free-spins_GM406889139.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/the-cheat-code-in-roblox-wonderland-games_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/free-robux-codes-december-2021_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/how-to-hack-someone-for-robux_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/coin-master-money-hack_GM406889139.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/cheat-engine-fly-roblox_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/cheat-roblox-pour-ninja-legends_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/roblox-hack-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • https://klp.com.tr/inc/uploads/userfiles/files/how-to-get-300-robux-on-roblox-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_off000030ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30ED 22116 bytes
SHA-256: 2bbac10dd7ef9dbc136f189dc38ccdd4eb6adef1af383d0fe1a9da5121d36c09
font_01_sfnt_off000061b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B2 18220 bytes
SHA-256: 6236314a17f57ecfc4f63da4a6b9cb2d9143cd94f6dcae1b1ce204d4da3deb21

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