PDF malware analysis — malicious · 9260fd232f707761

MALICIOUS

PDF

32.9 KB Created: 2021-07-19 04:32:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 19f23c140bb1da8dbb25ed6b18bbb2af SHA-1: f322ddbd98226efe2635cc28c26ff7e2e90f7d51 SHA-256: 9260fd232f707761ef90552626249ee00cd4315501f1d9d0a2715f005ee7a149

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.tw/app/479516143/try-minecraft-free-game-hack. The document body text and heuristics indicate a lure for free game content, likely to trick users into downloading further malicious content or visiting phishing sites. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

Machine Learning

Nyx PDF Classifier malicious score 0.9900

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 http://netcdn.tw/app/479516143/try-minecraft-free-game-hack In PDF document text
- https://www.banhngoncaocap.com/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
- https://www.banhngoncaocap.com/images/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
- https://www.banhngoncaocap.com/images/roblox-hack-com_GM431946152.pdfIn PDF document text
- https://www.banhngoncaocap.com/images/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
- https://www.banhngoncaocap.com/images/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.banhngoncaocap.com/images/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
- https://www.banhngoncaocap.com/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
- https://www.banhngoncaocap.com/images/minecraft-pe-free_GM479516143.pdfIn PDF document text
- https://www.banhngoncaocap.com/images/minecraft-education-free_GM479516143.pdfIn PDF document text
- https://www.banhngoncaocap.com/images/free-robux-site_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00002f4f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F4F	22108 bytes
SHA-256: `0a1b2f5b7b912dcdabe764d18299afa8736931a4750cfaf5bba1337efc2b7bf6`
`font_01_sfnt_off00006035.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6035	17748 bytes
SHA-256: `107932d4c819bf12e68df3d86f91d46cdcad91a8442b853cf72bc94cc41b7ea1`

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