Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c90bbf0bc36790f…

MALICIOUS

PDF

38.2 KB Created: 2021-05-30 01:22:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 10cfd532cc790558b5a5534d585b0519 SHA-1: 2e62d04fdbf8e6d79cfa2d42e134e6b813a537ab SHA-256: 3c90bbf0bc36790f711991b3d2aa41bc95df5711fa45427bdfd5a9056a9e34c7
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a malicious redirector link, specifically advertising a 'free Minecraft Java Account' and 'game hack'. The embedded URL leads to known malicious infrastructure. While no scripts were explicitly extracted, the PDF structure and the nature of the lure suggest an attempt to trick the user into downloading a secondary payload, likely through a malicious link.

Machine Learning

  • Nyx PDF Classifier clean score 0.0076

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-java-account-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003071.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3071 25852 bytes
SHA-256: dfdc1bbb5f06d1c1b0061eaa13b304b6ab6aa13b3dcfaebf815570eeae3c18a4
font_01_sfnt_off00006ae6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE6 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00007498.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7498 18128 bytes
SHA-256: ad2a0848393495eee102bd1b36be1bc15cd9afc8a8e02692ab65cad6db8d4212

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