Malicious PDF — malware analysis report

Static analysis result for SHA-256 07351c47455e2a97…

MALICIOUS

PDF

41.9 KB Created: 2021-05-12 15:30:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: b5ed2567e47f54ea08a6f0dd8cb7507a SHA-1: 6ad0fe34d9cc3e80ef4f7fdf733894a6c62912ab SHA-256: 07351c47455e2a97a5e58a4322e384d198f54e38c456ab60fc0839d2d5c03c77
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically advertising a "free Robux generator" or "game hack". The document body, though partially corrupted, contains phrases like "Free Robux Apk" and "CLICK HERE TO ACCESS ROBLOX GENERATOR", reinforcing the lure. The presence of multiple malicious redirector links indicates a clear intent to lead the user to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0125

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-apk-game-hack In PDF document text
    • https://krnl.rocksIn 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
font_00_sfnt_off00003775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3775 27548 bytes
SHA-256: 9b6791a31c7fe7478fc839852be787b3da86f0ff39f3d94ba3e9faff0b6bd509
font_01_sfnt_off000077f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77F3 2984 bytes
SHA-256: afd34f2c6eae46f895d8f8c6bb57a1ea4378a158dd3c7c7860bf643ff8612010
font_02_sfnt_off00008243.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8243 18360 bytes
SHA-256: e9359734bc9145e2b26d31ba7f580aebc3bf98c57002eb6e857d81b76a5cddb9

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