Malicious PDF — malware analysis report

Static analysis result for SHA-256 49887659be785a67…

MALICIOUS

PDF

39.1 KB Created: 2021-05-20 20:51:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3904a14c02411e081215923fca39bf10 SHA-1: bb886c85a517be8d6f89740ec2d823f30dfa9738 SHA-256: 49887659be785a67bc8f2450b0c78c60dd9d57075cda92deba6c6f1331592dcb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as game hacks or generators. The document body and heuristics confirm a lure related to 'free generator / game hack' content, specifically mentioning Roblox. The primary malicious URL identified is https://netcdn.xyz/app/431946152/how-to-make-clothes-on-roblox-for-free-game-hack, which is flagged as a malicious redirector. The presence of embedded URLs and the ML classifier further support the malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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-make-clothes-on-roblox-for-free-game-hack In PDF document text
    • http://www.exikom.com.ua/images/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.exikom.com.ua/images/coin-master-tool-hack_GM406889139.pdfIn PDF document text
    • http://www.exikom.com.ua/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://www.exikom.com.ua/images/roblox-printables-free_GM431946152.pdfIn PDF document text
    • http://www.exikom.com.ua/images/free-roblox-hair-girl_GM431946152.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_off0000322e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x322E 23904 bytes
SHA-256: f10eea054a0f25778fb2cde65a93aa6bc92bb8ad031bb13d13a6d143486c2017
font_01_sfnt_off000068af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68AF 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_02_sfnt_off00007556.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7556 18976 bytes
SHA-256: b61b86c25d6115ff697aefd9ab641b9f071fd28e07f949dfa38bf6f9b5f40050

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