Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e89ce083cdbc6ff…

MALICIOUS

PDF

40.4 KB Created: 2021-05-30 06:40:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c04e47e451ec27b2ae3beb69e7cf47c2 SHA-1: e3c29dcc20bbca50ab3feb74fbe9e719a48ae09c SHA-256: 2e89ce083cdbc6ff9a28dc9ae3530b75b9c16935bbdd0f13235756e905756592
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to a malicious domain, masquerading as a generator for free Robux or game hacks. The document body and heuristics indicate a lure to trick users into clicking these links, likely leading to further malicious content or downloads. No scripts were extracted, but the embedded URLs and the PDF redirector heuristic strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7718

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/free-robux-2021-game-hack In PDF document text
    • https://bulbenko.co.uk/wp-content/uploads/fsqm-files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://bulbenko.co.uk/wp-content/uploads/fsqm-files/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • https://bulbenko.co.uk/wp-content/uploads/fsqm-files/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • https://bulbenko.co.uk/wp-content/uploads/fsqm-files/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://bulbenko.co.uk/wp-content/uploads/fsqm-files/robloxmatchcom-free-robux_GM431946152.pdfIn 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_off00003486.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3486 25764 bytes
SHA-256: 4df67dcb0bd22f59a596fde2a64a23f9a60b543f09cdfe41c6583f81c215e33e
font_01_sfnt_off00006f68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F68 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_02_sfnt_off00007c10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C10 18416 bytes
SHA-256: a2c808792aaeb1607b9c3a91ae122c662faffffe8d42f3cf4118be6ccc5b3e7b