PDF malware analysis — malicious · 5fec32adbe402960

MALICIOUS

PDF

33.0 KB Created: 2021-07-19 20:14:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 169d7b0e753b707d1443ef1fa2c250b8 SHA-1: df9f05b85c78b2494265a15d33e5306b93b9ed06 SHA-256: 5fec32adbe402960929276f83352a415977087656bd33c24a58445ea49d68e52

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document is designed as a lure, presenting itself as a 'Roblox Hack' or 'Game Generator' to trick users into clicking embedded links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to download and execute a second-stage payload. The document's content and embedded URLs strongly suggest a social engineering tactic to deliver malware.

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/431946152/roblox-hack-2021-game-hack In PDF document text
- http://www.isovca.com/images/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
- http://www.isovca.com/images/get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
- http://www.isovca.com/images/coin-master-free-gifts_GM406889139.pdfIn PDF document text
- http://www.isovca.com/images/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
- http://www.isovca.com/images/free-tiktok-followers-no-downloads_GM835599320.pdfIn PDF document text
- http://www.isovca.com/images/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
- http://www.isovca.com/images/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
- http://www.isovca.com/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
- http://www.isovca.com/images/free-robux_GM431946152.pdfIn PDF document text
- http://www.isovca.com/images/minecraft-free-download-ios_GM479516143.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_off00002a44.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2A44	22768 bytes
SHA-256: `8f6fefdcf9ddeb0084fe742b5dfe78fd484ad223577850b96d9a00060ecc6f25`
`font_01_sfnt_off00005d31.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D31	18772 bytes
SHA-256: `8176d0e0dab2899da8c0ca184a8c984018431d9f5f9c3786fb2faef5db4d8820`

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