Malicious PDF — malware analysis report

Static analysis result for SHA-256 039ed28e61a9a3e9…

MALICIOUS

PDF

36.0 KB Created: 2021-05-21 17:41:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 163053111795afe9cecc6eac6d87a7a7 SHA-1: f9d2f33fd53e21edd2db4e324c66177bbc5b9d97 SHA-256: 039ed28e61a9a3e9ace6ee0178387f9f3d75cf9a36c1533626ae41a6f8dbb243
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs that redirect to known malicious infrastructure, masquerading as free game hacks or generators. The document body and heuristics indicate a lure to download or access potentially harmful content. While no scripts were explicitly extracted, the nature of the embedded links suggests a potential for further malicious activity, such as downloading a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/free-minecraft-server-hosting-game-hack In PDF document text
    • https://trustindoutama.com/assets/CKImages/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/hack-minecraft_GM479516143.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-roblox-card_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-hack-mod-apk-free-download_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_002_off00003505.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3505 24304 bytes
SHA-256: d8bd1ba28e660768eedcd197edf1a0f2efa643cabb8aa642d895e23d4c101399
font_01_sfnt_off00006bec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BEC 18112 bytes
SHA-256: 3722fe831b56fbf324865bd98e985c80b873b4d61fb4aa2a64332cfc2a086223

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