PDF malware analysis — malicious · 9cb5006bc25c5513

MALICIOUS

PDF

31.6 KB Created: 2021-07-20 04:04:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 195679e53c6772fd8c1fa4f0555b7d45 SHA-1: 5125b303f39fce88a4abf70706581a9dbd2b64d2 SHA-256: 9cb5006bc25c55136d0e3a929fd36b29fccf14962bdeeff697787b144ab0f969

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as free game hacks and generators. The primary lure URL is http://netcdn.tw/app/479516143/minecraft-java-free-trial-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to exploit vulnerabilities or trick the user into downloading further malicious content, aligning with common PDF-based malware delivery techniques.

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/minecraft-java-free-trial-game-hack In PDF document text
- https://gruporamos.do/images/free-robux-for-kids_GM431946152.pdfIn PDF document text
- https://gruporamos.do/images/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
- http://gruporamos.do/images/roblox-free-robux_GM431946152.pdfIn PDF document text
- https://gruporamos.do/images/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
- https://gruporamos.do/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://gruporamos.do/images/free-tiktok-app_GM835599320.pdfIn PDF document text
- https://gruporamos.do/images/minecraft-build-hacks_GM479516143.pdfIn PDF document text
- https://gruporamos.do/images/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
- https://gruporamos.do/images/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
- https://gruporamos.do/images/free-spins-and-coins-coin-master_GM406889139.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_off00002a4a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2A4A	21972 bytes
SHA-256: `b12beb63fc84d857b2c023bc0570125f33846ac1c6f967020382ce00e2f55cdb`
`font_01_sfnt_off00005a6d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5A6D	17924 bytes
SHA-256: `d296bfe87a6dc97e41f58611965175a9d8d851c6709ce0e2d245db43bc469752`

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