Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0778787e290d9e3…

MALICIOUS

PDF

41.9 KB Created: 2021-05-14 22:03:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 99612df8cd9aa9be888509ce3b2f8900 SHA-1: 9457ff15d49aa7cb60ebfc9f3dbc27fd8793cbe9 SHA-256: e0778787e290d9e3965b51fce0f236aa23c06d6f6e09a777c7d24363d75ac3c2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as offers for free game currency and hacks. The primary lure URL is https://netcdn.xyz/app/431946152/how-to-get-free-roblox-money-game-hack, which is associated with a 'free generator / game hack' lure. The document body and embedded URLs reinforce this theme, aiming to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/431946152/how-to-get-free-roblox-money-game-hack In PDF document text
    • http://grupodin.com.br/images/links-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • http://grupodin.com.br/images/apps-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://grupodin.com.br/images/freespins-coin-master_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/coin-master-facebook-page_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/coins-master_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/free-coins-2021-coin-master-link_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/install-coin-master_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/coin-master-online_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://grupodin.com.br/images/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/coin-master-hacker-club_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/free-links-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/roblox-hacked-accounts-list_GM431946152.pdfIn PDF document text
    • http://grupodin.com.br/images/coin-master-extra-spins_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://grupodin.com.br/images/easypoints-gg-roblox_GM431946152.pdfIn PDF document text
    • http://grupodin.com.br/images/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004882.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4882 24356 bytes
SHA-256: 499521dde3191fae5a5334ddded64e89608b54b1b126c978b806684f995f3d5a
font_01_sfnt_off00008089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8089 18592 bytes
SHA-256: b73f1f0d33754a6311a400e0f9b7fa1bed8423beec91854f27c9eb8add8b4fcc

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