Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e57f15d83317ddd…

MALICIOUS

PDF

42.2 KB Created: 2021-05-16 01:38:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 53a95e0d736b3aa511ceee856c0272b8 SHA-1: 94d7e9f249320c14f18e7943d98c0d178915fc44 SHA-256: 5e57f15d83317ddddb91a24b1edf28f4da938ca35ee7a0e01878eedcd8130a78
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as 'free generator' or 'game hack' lures. These links likely serve to distribute malware or lead to phishing pages. The ML classifier also strongly indicated maliciousness.

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/479516143/minecraft-pocket-edition-apk-free-download-game-hack In PDF document text
    • https://ethraa-sys.com/userfiles/files/free-google-play-promo-codes-coin-master_GM406889139.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/earn-robux-online_GM431946152.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/toolbox-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/coin-master-free-spins-2021-haktuts_GM406889139.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/free-robux-live_GM431946152.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/coin-master-hack-iphone_GM406889139.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/freerubux_GM431946152.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/win-free-robux_GM431946152.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/coin-master-spin-link_GM406889139.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/haktuts-coin-master-free-spins-2021_GM406889139.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_off00004a11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A11 24344 bytes
SHA-256: 9c6591b420bbf5f2770fa0e65223655baf45bfec67e0ad53d28a135225832699
font_01_sfnt_off00008130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8130 18788 bytes
SHA-256: 367056a754561f937df838296582abd38218f74b4e704aecd9863e26c36099d2

Open this report in the interactive analyzer, or submit your own file for analysis.