PDF malware analysis — malicious · 12e056862ddf8bd0

MALICIOUS

PDF

41.7 KB Created: 2021-05-22 10:34:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 1e2801157da7cfa9099d86e730a31998 SHA-1: 6d349d68fe5b20df85be9d5e9a62a6c6e59a800d SHA-256: 12e056862ddf8bd0a0f440a1a0353bc537a6326c0f0296cd49d8b77ea9cf4582

168 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure related to "Free Robux" and "game hacks" to trick users into clicking a link. The primary malicious URL, https://netcdn.xyz/app/431946152/free-robux-survey-game-hack, is flagged as a malicious redirector. The document body contains urgency language and a call-to-action button, further reinforcing the phishing attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.8120

Heuristics 5

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.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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-survey-game-hack In PDF document text
- https://amiranet.com.br/files/files/master-coin-master-free-spin_GM406889139.pdfIn PDF document text
- https://amiranet.com.br/files/files/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
- https://amiranet.com.br/files/files/coin-master-hack-apk-35-18_GM406889139.pdfIn PDF document text
- https://amiranet.com.br/files/files/coin-master_GM406889139.pdfIn PDF document text
- https://amiranet.com.br/files/files/coin-master-claim-free-spins_GM406889139.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.

Filename	Kind	Source	Size
`stream_002_off00003287.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3287	29536 bytes
SHA-256: `bb32c883ce7ea58457433b3a3fb265ed1b5d0a3fbfeb0a8c0c343ce3c16f54d0`
`font_01_sfnt_off00007507.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7507	5596 bytes
SHA-256: `9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5`
`font_02_sfnt_off000081ae.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x81AE	18308 bytes
SHA-256: `74a940f1217583ab80956cd168fb81f959241543e2b3413e790743682303989f`

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