Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccdfcb2f29665c82…

MALICIOUS

PDF

40.8 KB Created: 2021-05-14 06:00:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1e41c6e40ad9ad86d072459378417487 SHA-1: 87e3248770c5d596772b914b63e96b1b3583dd28 SHA-256: ccdfcb2f29665c829579d0cae6aee36250f3cd794dc78a7cd01fc2e8027386ba
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure related to hacking games for free currency, directing users to a malicious URL. This URL is flagged as a malicious redirector, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to 'How To Hack Roblox' and a 'CLICK HERE TO ACCESS ROBLOX GENERATOR' call to action, reinforcing the lure.

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/431946152/how-to-hack-roblox-to-get-free-robux-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_off00003554.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3554 26796 bytes
SHA-256: 82401aff519038ca46068d37b9c749ac1ab4f6c4a60cc21797ac8b2efe658191
font_01_sfnt_off0000727b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x727B 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00007c65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C65 18756 bytes
SHA-256: a768fd9037f2962d7d468f6b0310abba3890de72b41426d235b5de2790bab1ac

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