Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0aec27aa2bfcbff…

MALICIOUS

PDF

42.8 KB Created: 2021-05-20 16:56:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7c387d056f030847a437fc60d3b23389 SHA-1: dd882a17bf7ab976d4cd8d70c056dd054465e4bd SHA-256: f0aec27aa2bfcbff5c1e0a61aadb6c684483b41d6575e0d12e96099b30ede4e2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links pointing to known malicious redirectors and infrastructure, disguised as game hacks or generators. The document body explicitly mentions 'Free Roblox Wings' and 'CLICK HERE TO ACCESS ROBLOX GENERATOR', reinforcing the lure. The ML classifier also flagged this PDF as malicious, indicating a high probability of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7429

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-wings-game-hack In PDF document text
    • http://huananhai.net/images/coin-master-hack-ios-reddit_GM406889139.pdfIn PDF document text
    • http://huananhai.net/images/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://huananhai.net/images/coin-master-apk-hack-download_GM406889139.pdfIn PDF document text
    • http://huananhai.net/images/how-to-log-out-of-coin-master_GM406889139.pdfIn PDF document text
    • http://huananhai.net/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://wolfzscriptsIn 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_off0000336e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x336E 31848 bytes
SHA-256: 46d70eb8f94558436b16c11f9c5b312749099255819b03952defb2fbf10c7ed6
font_01_sfnt_off00007b58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B58 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00008509.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8509 18556 bytes
SHA-256: be4a7fa60d0342eba16b97979fd8cdd281d22ca1626ad71a9b2f053d4e6b2b75

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