Malicious PDF — malware analysis report

Static analysis result for SHA-256 09338b20e69f0beb…

MALICIOUS

PDF

39.9 KB Created: 2021-05-21 15:31:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ff3d69f84c9877abfa37ba3c7e25b667 SHA-1: 10b4199cd804a3dfc908096b92e66c954a1348d4 SHA-256: 09338b20e69f0bebaef6ff4535370bd0a035b5ee4bc7aead5f4dddd7f9f4cf70
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links and a call-to-action button that direct users to a malicious redirector infrastructure. The document body explicitly mentions 'Free Roblox Svg' and 'CLICK HERE TO ACCESS ROBLOX GENERATOR', indicating a social engineering lure for potentially unwanted software or malware. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8068

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-roblox-svg-game-hack In PDF document text
    • http://peche-madagascar.com/images/roblox-free-models_GM431946152.pdfIn PDF document text
    • http://peche-madagascar.com/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://peche-madagascar.com/images/hack-coin-master-using-pc_GM406889139.pdfIn PDF document text
    • http://peche-madagascar.com/images/how-to-hack-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • http://peche-madagascar.com/images/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000338a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x338A 25256 bytes
SHA-256: 883061d9c2480d0059d3ce17fea0bb851874855a829624ecaa36232d949a5226
font_01_sfnt_off00006e83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E83 3500 bytes
SHA-256: e49a868379cd3c37e631c5a53c010e21f38d803532a2b8417aee82315d4e8634
font_02_sfnt_off00007a24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A24 18348 bytes
SHA-256: ec5774183871ac2310e227d04ff410a8fddd606c61ae0fc98d7f5044e57efae1

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