Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeca55ed3ac455c7…

MALICIOUS

PDF

47.0 KB Created: 2021-06-08 13:12:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 822c342befebed4ca279d9c3a3403e5c SHA-1: e4d37db660d6f7c4a53561123f12e29786fac239 SHA-256: eeca55ed3ac455c7e4240b997088876bd5addaf56b5fcbbc6419aed4581b3246
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically targeting users interested in game hacks or account recovery. The primary lure URL is https://netcdn.tw/app/431946152/ways-to-gt-back-a-hacked-account-on-roblox-game-hack, which is associated with a 'game hack' theme. The presence of embedded URLs and a malicious redirector link strongly suggests a phishing or scam attempt designed to lead users to potentially harmful content or further malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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 https://netcdn.tw/app/431946152/ways-to-gt-back-a-hacked-account-on-roblox-game-hack In PDF document text
    • http://www.evaplast.by/images/coin-master-spin-and-coins-free_GM406889139.pdfIn PDF document text
    • http://www.evaplast.by/images/100-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.evaplast.by/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.evaplast.by/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://www.evaplast.by/images/coin-master-free-download-for-pc_GM406889139.pdfIn PDF document text
    • http://www.evaplast.by/images/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.evaplast.by/images/irobux-com-redeem_GM431946152.pdfIn PDF document text
    • http://www.evaplast.by/images/free-robux-discord_GM431946152.pdfIn PDF document text
    • http://www.evaplast.by/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.evaplast.by/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://www.evaplast.by/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.evaplast.by/images/free-coins-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://www.evaplast.by/images/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://www.evaplast.by/images/roblox-robux-gratis-hack_GM431946152.pdfIn PDF document text
    • http://www.evaplast.by/images/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://www.evaplast.by/images/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • http://www.evaplast.by/images/cool-skin-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.evaplast.by/images/coin-master-free-spins-link-ios_GM406889139.pdfIn PDF document text
    • http://www.evaplast.by/images/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • http://www.evaplast.by/images/clients-minecraft_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
stream_004_off0000523c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x523C 27916 bytes
SHA-256: b6a8e529a005465a944a2549d2a68d4d882e9ea61f05c991ae5c75205251d0bb
font_01_sfnt_off00009324.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9324 18976 bytes
SHA-256: db50bff967de99ad0c74fe0bfa214feac410de59acf5d5c44818096f51d1f602

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