Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f19111bab58f3ea…

MALICIOUS

PDF

40.5 KB Created: 2021-05-30 02:31:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 93b754877b27675547f0284e20d80403 SHA-1: 37a3eb422c9d7688bb9091f378ebc31213e95de0 SHA-256: 5f19111bab58f3ea435cbb6f3e9295d6ff5892e2fac2bf47aa51b8fb4143b952
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a visual download button lure, directing users to sites offering "free Robux" or "Roblox hacks." The ML classifier also flagged the PDF as malicious. The presence of these elements suggests an attempt to trick users into visiting malicious sites, likely for credential harvesting or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6747

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-no-human-verification-or-survey-or-download-game-hack In PDF document text
    • https://multicarlo-bhp.pl/wp-content/uploads/fsqm-files/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://multicarlo-bhp.pl/wp-content/uploads/fsqm-files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://multicarlo-bhp.pl/wp-content/uploads/fsqm-files/free-tiktok-fans-and-likes_GM835599320.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_off0000315c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x315C 26144 bytes
SHA-256: 0e04e6c345637036e2f7e1707c7e3357f70089e8f9f00d29d934e81276802e32
font_01_sfnt_off00006efe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EFE 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off000078ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78AC 19736 bytes
SHA-256: 59e4374f8172b973ba9217c83b5ce6b26483f5ae1ceeffd331798f57e1658bad

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