Malicious PDF — malware analysis report

Static analysis result for SHA-256 25e870f55482c951…

MALICIOUS

PDF

48.1 KB Created: 2021-06-03 04:54:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d908ffd8a3517d9e632526c0ffb9dd8d SHA-1: c188ef2b5d6098b4aaac348efa50b307d963540f SHA-256: 25e870f55482c9519a6189ddce7af390e4c172d278e7e22551ca249846eca564
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to redirector domains, specifically targeting users with lures for game hacks and generators. The primary malicious URL identified is https://netcdn.online/app/431946152/get-free-roblox-gg-game-hack, which is flagged as a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it's designed to exploit vulnerabilities or trick users into navigating to malicious sites, likely as part of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9871

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.online/app/431946152/get-free-roblox-gg-game-hack In PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/free-daily-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/robux-fun-hack_GM431946152.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/free-roblox-followers_GM431946152.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/minecraft-java-free_GM479516143.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/coin-master-card-collection-hack-apk_GM406889139.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/roblox-download_GM431946152.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/hack-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/free-spins-for-coin-masters_GM406889139.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/irobux-com-redeem_GM431946152.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/how-to-earn-robux-fast_GM431946152.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/coin-master-hack-fast_GM406889139.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/hack-tiktok-fans-free_GM835599320.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/free-robux-com-real_GM431946152.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/free-robux-clothes_GM431946152.pdfIn PDF document text
    • https://www.titastar.com/uploaded_files/userfiles/files/coin-master-free-coins-and-spins-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
stream_004_off000055c5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x55C5 30136 bytes
SHA-256: d7832bb8021646db25027dfbde96cc9a0156a868b4a178813f05b50edfb9db23
font_01_sfnt_off0000998c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x998C 18340 bytes
SHA-256: c52e6a297ffcae7df22177d86a3c071085940e05ca66069a2b55903add909985

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