Malicious PDF — malware analysis report

Static analysis result for SHA-256 598be4d7d43d5282…

MALICIOUS

PDF

45.3 KB Created: 2021-05-17 05:35:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dce3d485b145f580677e64e05827f824 SHA-1: e892760e41c54e706146c6398b6fad0ef0483740 SHA-256: 598be4d7d43d5282ace6325f3f83ab25c60e151a830c142cc7cb843fb7739aa1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting "game hacks" and "free generators" to lure users. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or social engineering attempt to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9551

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/406889139/cmaster-club-coin-master-hack-tool-game-hack In PDF document text
    • http://new-era.com.tw/image/data/files/optifine-pe_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-hack-coins-in-archery-master-3d_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-hack-progamers_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/minecraft-free-android_GM479516143.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/what-is-robux_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-mod-free-download_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/hack-xp-net-generators-coin-master_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-free-spins-2021-link_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-hack-apk-35-18_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b68.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B68 24916 bytes
SHA-256: bc923fdad03464d88b5727af34a3bf3f5153e59dbba314965d8ede401856412b
font_01_sfnt_off000084b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84B1 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008e63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E63 18348 bytes
SHA-256: f0efa7bd578828e228852acb28a29fd722b45bccad7fbec0beae23dba8f9565c

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