Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa2714b6cb2cb2c9…

MALICIOUS

PDF

36.8 KB Created: 2021-05-23 20:35:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 348eb83c7fdcde4dabb3aee8aef15f8f SHA-1: 484559d01954475b2ec0b45338bb3bcbe8b0821f SHA-256: fa2714b6cb2cb2c998096cd56d990592f48c3e163f0bbf332aec0fc99dfa8a8c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as game-related content like 'free generator' or 'redeem code'. The document body explicitly mentions 'Minecraft Java Edition Redeem Code Free 2021' and includes a call to action to access a generator. The primary malicious URL identified is https://netcdn.xyz/app/479516143/minecraft-java-edition-redeem-code-free-2021-game-hack, which is associated with a game hack lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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-java-edition-redeem-code-free-2021-game-hack In PDF document text
    • http://webstan.be/images/spins-coin-master_GM406889139.pdfIn PDF document text
    • http://webstan.be/images/roblox-free-download_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • http://webstan.be/images/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/robux-fun-hack_GM431946152.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_off00003386.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3386 25428 bytes
SHA-256: 790748b2cec5cf1235dacce21c664a1dc82b5b73385396273be0c3ec38f0ed37
font_01_sfnt_off00006cde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CDE 18824 bytes
SHA-256: 3e84327372ede1fb0dd75240746e2dc46639f78069d280fe972667d8e0b4261e

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