Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd2c8876681f94bd…

MALICIOUS

PDF

35.8 KB Created: 2021-05-20 13:06:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b071bb2995fd65208fb10dc787a7a3cd SHA-1: df7f862942f0d8d19de894a37cb8dcf6ba0d5970 SHA-256: cd2c8876681f94bd9e39559951fa93476d3c6869fc1748698a3b8f15fe52957a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links pointing to known malicious redirectors and infrastructure, disguised as game hacks or generators. The document body, though heavily obfuscated, contains references to 'Minecraft Realms Free Codes' and a URL that aligns with the malicious findings. The presence of embedded links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

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/minecraft-realms-free-codes-game-hack In PDF document text
    • http://vedrachemicals.ro/images/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://vedrachemicals.ro/images/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://vedrachemicals.ro/images/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • http://vedrachemicals.ro/images/roblox-hacked-accounts-list_GM431946152.pdfIn PDF document text
    • http://vedrachemicals.ro/images/coin-master-hack-spins-apk_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_off000031b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31B4 25472 bytes
SHA-256: 8892581493b74a4e5d5855b88b6a631990f6c91ae73d3d5fb85e1e366eb75b48
font_01_sfnt_off00006b02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B02 18216 bytes
SHA-256: 30a8f83054e231b1bb485b1ca025b33fda8ee43bcea67b958af1de796f39c45f

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