Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e1ece340a453d94…

MALICIOUS

PDF

36.5 KB Created: 2021-05-20 22:12:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3f377c24235f6ab9208d5b46e090c0ed SHA-1: 983dc1c65ef2a67af101a3ebe402d7822c49ebe8 SHA-256: 8e1ece340a453d94ab4aedbac5c7249348da535492baff443335c10c7633d37f
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector domains that host lures for game hacks and free currency, such as 'Roblox Redeem Card Codes Free'. The primary malicious URL identified is https://netcdn.xyz/app/431946152/roblox-redeem-card-codes-free-game-hack, which is linked from within the document body and also referenced by heuristic firings. The document body also contains obfuscated text and references to other potentially malicious PDF files hosted on the kita-sunshine.de domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/431946152/roblox-redeem-card-codes-free-game-hack In PDF document text
    • http://kita-sunshine.de/images/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • http://kita-sunshine.de/images/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://kita-sunshine.de/images/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003413.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3413 24428 bytes
SHA-256: 7857b4ac45790139aa39a6c371770007e8d22d8b6bb54581e4ceddeecd02274f
font_01_sfnt_off00006c4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C4B 18612 bytes
SHA-256: a80930eafb0fa49b70c8b74e6f01afa17dc8341ac3dd6991c9bc21ab4de62243

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