Malicious PDF — malware analysis report

Static analysis result for SHA-256 da50b9d24cc2dd1f…

MALICIOUS

PDF

39.4 KB Created: 2021-05-11 04:09:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: b78eddc8bc039f287c3df906c9db6749 SHA-1: 38429725c675066595ee75a7ca51cd606a21e5d6 SHA-256: da50b9d24cc2dd1f43a15eeb6503acaf84f1413dbcd20eac4290eb8f9f7e421c
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains a lure for 'Minecraft Windows 10 Hacks' and a prominent 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' call to action. This link redirects to malicious infrastructure, indicating a phishing or scam attempt. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to exploit users through deceptive content, likely leading to a malicious download or further redirection.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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-windows-10-hacks-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_003_off000034ba.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34BA 24876 bytes
SHA-256: 43e9c101a320900ac559695c0234a43047806fe013bdb1fccb4f29998a43a6a5
font_01_sfnt_off00006d24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D24 2936 bytes
SHA-256: b1e3337efae33eee3e71495fbe99a66db19200dc2b84e843e34766495e848f39
font_02_sfnt_off0000773e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x773E 18696 bytes
SHA-256: 14f86b407040f424958936cb2b2b49b26067a8980bd50a77917f0563cc1bff87

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