Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ad15d74c91cf45e…

MALICIOUS

PDF

45.4 KB Created: 2021-05-13 12:31:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 42b5bc8fabd96a812bf6c8c6e05a62cc SHA-1: 6a9d790c0f27cfe0a746edd95206d94dc9dbb439 SHA-256: 9ad15d74c91cf45e38b44ef5d639c27e13d8005ea2ff279af2e6b3afa3dada0e
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically advertising a 'free generator / game hack'. The embedded URL leads to known malicious infrastructure. The document body also contains similar lures and the call-to-action phrase 'CLICK HERE TO ACCESS ROBLOX GENERATOR', reinforcing the phishing attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0119

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-get-free-robux-hack-2021-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003364.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3364 28420 bytes
SHA-256: 42236e630f3ebc7e4e2fa38771b77d74760df1685460134501973d1392b7c73f
font_01_sfnt_off000073b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73B1 3048 bytes
SHA-256: 87484d2ca7c4fa47c4a720a38c3167d8709699081e47961e455eb15fcc3fdd06
font_02_sfnt_off00007e3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E3C 6264 bytes
SHA-256: 98611db8da8803e1bf2a12b716b154249e7ee9a3411a37f6d0a8744510e880a9
font_03_sfnt_off00008d4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D4E 19084 bytes
SHA-256: bf126c80224e4ece1a877f3c45a4e2f725662c205f8b78a709aa4c80730d283c

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